{"id":3351,"date":"2025-08-07T03:48:59","date_gmt":"2025-08-07T03:48:59","guid":{"rendered":"https:\/\/3waycatalyst.com\/?p=3351"},"modified":"2025-08-07T08:50:45","modified_gmt":"2025-08-07T08:50:45","slug":"platinum-palladium-rhodium-why-these-precious-metals-are-crucial-for-catalytic-converters","status":"publish","type":"post","link":"https:\/\/3waycatalyst.com\/vi\/platinum-palladium-rhodium-why-these-precious-metals-are-crucial-for-catalytic-converters\/","title":{"rendered":"B\u1ea1ch kim, Paladi, Rhodium: T\u1ea1i sao nh\u1eefng kim lo\u1ea1i qu\u00fd n\u00e0y l\u1ea1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c"},"content":{"rendered":"

B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c<\/a> l\u00e0 nh\u1eefng b\u1ed9 ph\u1eadn thi\u1ebft y\u1ebfu trong c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n giao th\u00f4ng hi\u1ec7n \u0111\u1ea1i, c\u00f3 nhi\u1ec7m v\u1ee5 gi\u1ea3m thi\u1ec3u kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i v\u00e0 \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh v\u1ec1 m\u00f4i tr\u01b0\u1eddng. M\u1ed9t trong nh\u1eefng kh\u00eda c\u1ea1nh quan tr\u1ecdng nh\u1ea5t trong ch\u1ee9c n\u0103ng c\u1ee7a ch\u00fang l\u00e0 vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c kim lo\u1ea1i qu\u00fd nh\u01b0 b\u1ea1ch kim<\/strong>, paladi<\/strong>, V\u00e0 rhodi<\/strong>, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc c\u1ea7n thi\u1ebft \u0111\u1ec3 ki\u1ec3m so\u00e1t kh\u00ed th\u1ea3i. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd \u0111i s\u00e2u v\u00e0o vai tr\u00f2 c\u1ee7a nh\u1eefng kim lo\u1ea1i n\u00e0y trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c, kh\u00e1m ph\u00e1 l\u00fd do t\u1ea1i sao ch\u00fang l\u1ea1i quan tr\u1ecdng \u0111\u1ebfn v\u1eady v\u00e0 xem x\u00e9t nh\u1eefng t\u00e1c \u0111\u1ed9ng v\u1ec1 m\u1eb7t m\u00f4i tr\u01b0\u1eddng v\u00e0 kinh t\u1ebf c\u1ee7a ch\u00fang. Vi\u1ec7c hi\u1ec3u \u0111\u01b0\u1ee3c t\u1ea7m quan tr\u1ecdng c\u1ee7a ch\u00fang kh\u00f4ng ch\u1ec9 quan tr\u1ecdng \u0111\u1ed1i v\u1edbi ch\u1ee7 xe m\u00e0 c\u00f2n \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 ai quan t\u00e2m \u0111\u1ebfn t\u01b0\u01a1ng lai c\u1ee7a kh\u00ed th\u1ea3i \u00f4 t\u00f4 v\u00e0 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n

1. B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c l\u00e0 g\u00ec v\u00e0 t\u1ea1i sao ch\u00fang l\u1ea1i quan tr\u1ecdng?<\/h2>\n\n\n\n

M\u1ed8T b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c<\/strong> l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng c\u1ee7a m\u1ed9t chi\u1ebfc xe h\u1ec7 th\u1ed1ng x\u1ea3<\/strong>, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i th\u1ea3i v\u00e0o kh\u00ed quy\u1ec3n. Thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch t\u1ea1o \u0111i\u1ec1u ki\u1ec7n ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc<\/strong> chuy\u1ec3n \u0111\u1ed5i c\u00e1c lo\u1ea1i kh\u00ed \u0111\u1ed9c h\u1ea1i nh\u01b0 cacbon monoxit<\/strong>, hydrocarbon<\/strong>, V\u00e0 oxit nit\u01a1<\/strong> th\u00e0nh nh\u1eefng ch\u1ea5t \u00edt g\u00e2y h\u1ea1i h\u01a1n nh\u01b0 kh\u00ed cacbonic<\/strong> V\u00e0 h\u01a1i n\u01b0\u1edbc<\/strong>. N\u1ebfu kh\u00f4ng c\u00f3 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c, c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m c\u00f3 h\u1ea1i ph\u00e1t ra t\u1eeb \u0111\u1ed9ng c\u01a1 \u0111\u1ed1t trong<\/strong> s\u1ebd cao h\u01a1n nhi\u1ec1u, g\u00f3p ph\u1ea7n v\u00e0o \u00f4 nhi\u1ec5m kh\u00f4ng kh\u00ed<\/strong> V\u00e0 bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu<\/strong>.<\/p>\n\n\n\n

T\u1ea7m quan tr\u1ecdng c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c c\u01b0\u1eddng \u0111i\u1ec7u h\u00f3a, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi x\u00e9t \u0111\u1ebfn c\u00e1c quy \u0111\u1ecbnh nghi\u00eam ng\u1eb7t h\u01a1n ti\u00eau chu\u1ea9n kh\u00ed th\u1ea3i<\/strong> \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp b\u1edfi c\u00e1c c\u01a1 quan m\u00f4i tr\u01b0\u1eddng nh\u01b0 C\u01a1 quan B\u1ea3o v\u1ec7 M\u00f4i tr\u01b0\u1eddng Hoa K\u1ef3 (EPA)<\/strong>. B\u1eb1ng c\u00e1ch gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i, b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c b\u1ea3o v\u1ec7 ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed v\u00e0 gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng c\u1ee7a s\u1ef1 n\u00f3ng l\u00ean to\u00e0n c\u1ea7u<\/strong>.<\/p>\n\n\n\n

2. Kim lo\u1ea1i qu\u00fd \u0111\u00f3ng vai tr\u00f2 g\u00ec trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c?<\/h2>\n\n\n\n

Ch\u1ee9c n\u0103ng c\u1ed1t l\u00f5i c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c l\u00e0 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i kh\u00ed \u0111\u1ed9c th\u00e0nh c\u00e1c ch\u1ea5t \u00edt g\u00e2y h\u1ea1i h\u01a1n. Kim lo\u1ea1i qu\u00fd nh\u01b0 b\u1ea1ch kim<\/strong>, paladi<\/strong>, V\u00e0 rhodi<\/strong> l\u00e0 c\u1ea7n thi\u1ebft cho qu\u00e1 tr\u00ecnh n\u00e0y v\u00ec ch\u00fang ho\u1ea1t \u0111\u1ed9ng nh\u01b0 ch\u1ea5t x\u00fac t\u00e1c<\/strong> trong c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc b\u00ean trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i. Ch\u1ea5t x\u00fac t\u00e1c gi\u00fap t\u0103ng t\u1ed1c ph\u1ea3n \u1ee9ng m\u00e0 kh\u00f4ng b\u1ecb ti\u00eau hao trong qu\u00e1 tr\u00ecnh, cho ph\u00e9p b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c x\u1eed l\u00fd kh\u00ed th\u1ea3i hi\u1ec7u qu\u1ea3 v\u00e0 li\u00ean t\u1ee5c.<\/p>\n\n\n\n

Nh\u1eefng kim lo\u1ea1i n\u00e0y \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn v\u00ec kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u01b0\u1ee3c \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t b\u00ean trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i, n\u01a1i nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc di\u1ec5n ra. Kh\u1ea3 n\u0103ng duy tr\u00ec \u1ed5n \u0111\u1ecbnh v\u00e0 hi\u1ec7u qu\u1ea3 theo th\u1eddi gian c\u1ee7a ch\u00fang l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 duy tr\u00ec hi\u1ec7u su\u1ea5t c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c.<\/p>\n\n\n\n

3. B\u1ea1ch kim, Paladi v\u00e0 Rhodium ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c?<\/h2>\n\n\n\n

B\u1ea1ch kim<\/strong>, paladi<\/strong>, V\u00e0 rhodi<\/strong> l\u00e0m vi\u1ec7c c\u00f9ng nhau \u0111\u1ec3 c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i th\u00e0nh c\u00e1c ch\u1ea5t \u00edt \u0111\u1ed9c h\u1ea1i h\u01a1n.<\/p>\n\n\n\n

    \n
  • B\u1ea1ch kim<\/strong> ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ef1 oxy h\u00f3a<\/strong> ph\u1ea3n \u1ee9ng b\u00ean trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c. N\u00f3 gi\u00fap chuy\u1ec3n \u0111\u1ed5i cacbon monoxit<\/strong> v\u00e0o trong kh\u00ed cacbonic<\/strong> V\u00e0 hydrocarbon<\/strong> v\u00e0o trong h\u01a1i n\u01b0\u1edbc<\/strong>. B\u1ea1ch kim c\u00f3 hi\u1ec7u qu\u1ea3 cao trong vi\u1ec7c t\u0103ng t\u1ed1c c\u00e1c ph\u1ea3n \u1ee9ng n\u00e0y, ngay c\u1ea3 trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t b\u00ean trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i.<\/li>\n\n\n\n
  • Paladi<\/strong> c\u0169ng tham gia v\u00e0o ph\u1ea3n \u1ee9ng oxy h\u00f3a<\/strong>, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi hydrocarbon<\/strong> V\u00e0 cacbon monoxit<\/strong>. N\u00f3 h\u1ed7 tr\u1ee3 ph\u00e2n h\u1ee7y c\u00e1c ch\u1ea5t \u0111\u1ed9c h\u1ea1i n\u00e0y v\u00e0 chuy\u1ec3n h\u00f3a ch\u00fang th\u00e0nh c\u00e1c lo\u1ea1i kh\u00ed \u00edt \u0111\u1ed9c h\u1ea1i h\u01a1n.<\/li>\n\n\n\n
  • Rhodium<\/strong> l\u00e0 duy nh\u1ea5t \u1edf ch\u1ed7 n\u00f3 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong s\u1ef1 gi\u1ea3m b\u1edbt<\/strong> c\u1ee7a oxit nit\u01a1 (NOx)<\/strong>. Nit\u01a1 oxit l\u00e0 m\u1ed9t ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m ch\u00ednh, g\u00f3p ph\u1ea7n g\u00e2y ra s\u01b0\u01a1ng m\u00f9 v\u00e0 m\u01b0a axit. Rhodium gi\u00fap chuy\u1ec3n \u0111\u1ed5i c\u00e1c kh\u00ed \u0111\u1ed9c h\u1ea1i n\u00e0y th\u00e0nh nit\u01a1<\/strong> V\u00e0 \u00f4xy<\/strong>, \u00edt g\u00e2y h\u1ea1i cho m\u00f4i tr\u01b0\u1eddng h\u01a1n nhi\u1ec1u.<\/li>\n<\/ul>\n\n\n\n

    C\u00f9ng v\u1edbi nhau, c\u00e1c kim lo\u1ea1i qu\u00fd n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c c\u00f3 th\u1ec3 gi\u1ea3m hi\u1ec7u qu\u1ea3 l\u01b0\u1ee3ng kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i t\u1eeb h\u1ec7 th\u1ed1ng x\u1ea3, cho ph\u00e9p xe \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n kh\u00ed th\u1ea3i<\/strong> v\u00e0 c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed.<\/p>\n\n\n\n

    4. Nh\u1eefng ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc n\u00e0o \u0111\u01b0\u1ee3c x\u00fac t\u00e1c b\u1edfi c\u00e1c kim lo\u1ea1i n\u00e0y?<\/h2>\n\n\n\n

    Vai tr\u00f2 ch\u00ednh c\u1ee7a kim lo\u1ea1i qu\u00fd trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c l\u00e0 x\u00fac t\u00e1c ba ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc ch\u00ednh:<\/p>\n\n\n\n

      \n
    1. Qu\u00e1 tr\u00ecnh oxy h\u00f3a Carbon Monoxide (CO)<\/strong>: Carbon monoxide, m\u1ed9t lo\u1ea1i kh\u00ed ch\u1ebft ng\u01b0\u1eddi, \u0111\u01b0\u1ee3c oxy h\u00f3a th\u00e0nh cacbon dioxit (CO\u2082)<\/strong> qua b\u1ea1ch kim<\/strong> V\u00e0 paladi<\/strong>Ph\u1ea3n \u1ee9ng n\u00e0y l\u00e0m gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed carbon monoxide th\u1ea3i ra kh\u00ed quy\u1ec3n.<\/li>\n\n\n\n
    2. Qu\u00e1 tr\u00ecnh oxy h\u00f3a hydrocarbon (HC)<\/strong>:C\u00e1c hydrocacbon, l\u00e0 c\u00e1c h\u1ea1t nhi\u00ean li\u1ec7u ch\u01b0a ch\u00e1y, \u0111\u01b0\u1ee3c oxy h\u00f3a th\u00e0nh cacbon dioxit (CO\u2082)<\/strong> V\u00e0 h\u01a1i n\u01b0\u1edbc (H\u2082O)<\/strong>. B\u1ea1ch kim v\u00e0 pala\u0111i \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong ph\u1ea3n \u1ee9ng n\u00e0y, \u0111\u1ea3m b\u1ea3o r\u1eb1ng hydrocarbon kh\u00f4ng tho\u00e1t ra ngo\u00e0i kh\u00ed quy\u1ec3n.<\/li>\n\n\n\n
    3. Gi\u1ea3m oxit nit\u01a1 (NOx)<\/strong>:Nit\u01a1 oxit, g\u00f3p ph\u1ea7n g\u00e2y ra s\u01b0\u01a1ng m\u00f9 v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 h\u00f4 h\u1ea5p, \u0111\u01b0\u1ee3c gi\u1ea3m xu\u1ed1ng nit\u01a1 (N\u2082)<\/strong> V\u00e0 oxy (O\u2082)<\/strong> qua rhodi<\/strong>. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng ph\u1ea3n \u1ee9ng quan tr\u1ecdng nh\u1ea5t \u0111\u1ec3 c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed v\u00e0 gi\u1ea3m thi\u1ec3u t\u00e1c h\u1ea1i c\u1ee7a kh\u00ed th\u1ea3i xe c\u1ed9.<\/li>\n<\/ol>\n\n\n\n

      Nh\u1eefng ph\u1ea3n \u1ee9ng n\u00e0y r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u00ed th\u1ea3i c\u1ee7a xe \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n m\u00f4i tr\u01b0\u1eddng v\u00e0 g\u00f3p ph\u1ea7n l\u00e0m cho kh\u00f4ng kh\u00ed trong l\u00e0nh h\u01a1n.<\/p>\n\n\n\n

      5. Nh\u1eefng kim lo\u1ea1i qu\u00fd n\u00e0y gi\u00fap gi\u1ea3m ph\u00e1t th\u1ea3i \u0111\u1ed9c h\u1ea1i nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n\n\n\n

      L\u1ee3i \u00edch ch\u00ednh c\u1ee7a b\u1ea1ch kim, paladi v\u00e0 rhodium l\u00e0 kh\u1ea3 n\u0103ng gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i do xe c\u1ed9 th\u1ea3i ra. B\u1eb1ng c\u00e1ch chuy\u1ec3n \u0111\u1ed5i c\u00e1c lo\u1ea1i kh\u00ed \u0111\u1ed9c h\u1ea1i nh\u01b0 cacbon monoxit<\/strong>, hydrocarbon<\/strong>, V\u00e0 oxit nit\u01a1<\/strong> th\u00e0nh nh\u1eefng ch\u1ea5t \u00edt \u0111\u1ed9c h\u1ea1i h\u01a1n, nh\u1eefng kim lo\u1ea1i n\u00e0y cho ph\u00e9p c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n kh\u00ed th\u1ea3i<\/strong> do c\u00e1c c\u01a1 quan qu\u1ea3n l\u00fd \u0111\u1eb7t ra. N\u1ebfu kh\u00f4ng c\u00f3 nh\u1eefng kim lo\u1ea1i n\u00e0y, xe c\u1ed9 s\u1ebd th\u1ea3i ra l\u01b0\u1ee3ng ch\u1ea5t \u00f4 nhi\u1ec5m cao h\u01a1n nhi\u1ec1u, g\u00f3p ph\u1ea7n \u00f4 nhi\u1ec5m kh\u00f4ng kh\u00ed<\/strong> V\u00e0 s\u1ef1 n\u00f3ng l\u00ean to\u00e0n c\u1ea7u<\/strong>.<\/p>\n\n\n\n

      B\u1eb1ng c\u00e1ch t\u1ea1o \u0111i\u1ec1u ki\u1ec7n gi\u1ea3m thi\u1ec3u l\u01b0\u1ee3ng kh\u00ed th\u1ea3i n\u00e0y, b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng m\u00f4i tr\u01b0\u1eddng c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111\u1ed1t trong. Ch\u00fang gi\u00fap gi\u1ea3m kh\u00ed cacbonic<\/strong>, nit\u01a1 oxit<\/strong>, V\u00e0 kh\u00ed th\u1ea3i hydrocarbon<\/strong>t\u1ea5t c\u1ea3 \u0111\u1ec1u g\u00f3p ph\u1ea7n g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 m\u00f4i tr\u01b0\u1eddng v\u00e0 s\u1ee9c kh\u1ecfe.<\/p>\n\n\n\n

      6. T\u1ea1i sao Rhodium, Paladi v\u00e0 B\u1ea1ch kim l\u1ea1i hi\u1ec7u qu\u1ea3 \u0111\u1ebfn v\u1eady?<\/h2>\n\n\n\n

      Nh\u1eefng kim lo\u1ea1i n\u00e0y c\u00f3 hi\u1ec7u qu\u1ea3 cao do t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc \u0111\u1ed9c \u0111\u00e1o c\u1ee7a ch\u00fang.<\/p>\n\n\n\n

        \n
      • B\u1ea1ch kim<\/strong> l\u00e0 ch\u1ea5t x\u00fac t\u00e1c tuy\u1ec7t v\u1eddi cho c\u00e1c ph\u1ea3n \u1ee9ng oxy h\u00f3a v\u00ec n\u00f3 c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 r\u1ea5t \u1ed5n \u0111\u1ecbnh. Kh\u1ea3 n\u0103ng th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i cacbon monoxit<\/strong> V\u00e0 hydrocarbon<\/strong> v\u00e0o trong kh\u00ed cacbonic<\/strong> V\u00e0 h\u01a1i n\u01b0\u1edbc<\/strong> l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 gi\u1ea3m thi\u1ec3u kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i.<\/li>\n\n\n\n
      • Paladi<\/strong> \u0111\u1eb7c bi\u1ec7t hi\u1ec7u qu\u1ea3 trong vi\u1ec7c th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh oxy h\u00f3a hydrocarbon<\/strong> V\u00e0 cacbon monoxit<\/strong>. Hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3 trong c\u00e1c ph\u1ea3n \u1ee9ng n\u00e0y l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c.<\/li>\n\n\n\n
      • Rhodium<\/strong> n\u1ed5i b\u1eadt v\u00ec n\u00f3 l\u00e0 kim lo\u1ea1i hi\u1ec7u qu\u1ea3 nh\u1ea5t \u0111\u1ec3 kh\u1eed oxit nit\u01a1<\/strong>. N\u00f3 c\u00f3 th\u1ec3 x\u00fac t\u00e1c qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i NOx th\u00e0nh ch\u1ea5t v\u00f4 h\u1ea1i nit\u01a1<\/strong> V\u00e0 \u00f4xy<\/strong>, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean v\u00f4 c\u00f9ng h\u1eefu \u00edch trong vi\u1ec7c gi\u1ea3m thi\u1ec3u c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m c\u00f3 h\u1ea1i nh\u1ea5t do xe c\u1ed9 th\u1ea3i ra.<\/li>\n<\/ul>\n\n\n\n

        S\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u00e1c kim lo\u1ea1i n\u00e0y cho ph\u00e9p b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c x\u1eed l\u00fd nhi\u1ec1u lo\u1ea1i ch\u1ea5t \u00f4 nhi\u1ec5m, khi\u1ebfn ch\u00fang hi\u1ec7u qu\u1ea3 h\u01a1n c\u00e1c kim lo\u1ea1i ho\u1eb7c v\u1eadt li\u1ec7u kh\u00e1c.<\/p>\n\n\n\n

        7. S\u1ef1 khan hi\u1ebfm v\u00e0 gi\u00e1 tr\u1ecb c\u1ee7a b\u1ea1ch kim, paladi v\u00e0 rhodi<\/h2>\n\n\n\n

        B\u1ea1ch kim, palladium v\u00e0 rhodium l\u00e0 nh\u1eefng kim lo\u1ea1i qu\u00fd hi\u1ebfm. Rhodium \u0111\u1eb7c bi\u1ec7t hi\u1ebfm, \u0111\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao n\u00f3 \u0111\u1eaft nh\u1ea5t trong ba kim lo\u1ea1i. S\u1ef1 khan hi\u1ebfm c\u1ee7a nh\u1eefng kim lo\u1ea1i n\u00e0y g\u00f3p ph\u1ea7n l\u00e0m t\u0103ng chi ph\u00ed c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c. Khi c\u00e1c quy \u0111\u1ecbnh v\u1ec1 m\u00f4i tr\u01b0\u1eddng ng\u00e0y c\u00e0ng nghi\u00eam ng\u1eb7t v\u00e0 nhu c\u1ea7u ki\u1ec3m so\u00e1t kh\u00ed th\u1ea3i t\u0103ng l\u00ean, gi\u00e1 tr\u1ecb c\u1ee7a nh\u1eefng kim lo\u1ea1i qu\u00fd n\u00e0y ti\u1ebfp t\u1ee5c t\u0103ng.<\/p>\n\n\n\n

        S\u1ef1 khan hi\u1ebfm c\u1ee7a ch\u00fang c\u0169ng khi\u1ebfn n\u1ea1n tr\u1ed9m c\u1eafp b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c tr\u1edf th\u00e0nh m\u1ed9t v\u1ea5n n\u1ea1n ng\u00e0y c\u00e0ng nghi\u00eam tr\u1ecdng. K\u1ebb tr\u1ed9m nh\u1eafm v\u00e0o kim lo\u1ea1i b\u00ean trong c\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i n\u00e0y, v\u1ed1n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c b\u00e1n v\u1edbi gi\u00e1 cao. \u0110i\u1ec1u n\u00e0y \u0111\u00e3 d\u1eabn \u0111\u1ebfn vi\u1ec7c t\u0103ng c\u01b0\u1eddng c\u00e1c bi\u1ec7n ph\u00e1p an ninh v\u00e0 n\u1ed7 l\u1ef1c ng\u0103n ch\u1eb7n tr\u1ed9m c\u1eafp.<\/p>\n\n\n\n

        8. Nhi\u1ec7t \u0111\u1ed9 cao \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c nh\u01b0 th\u1ebf n\u00e0o<\/h2>\n\n\n\n

        B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 c\u1ef1c cao, th\u01b0\u1eddng v\u01b0\u1ee3t qu\u00e1 1.000\u00b0F (537\u00b0C)<\/strong>C\u00e1c kim lo\u1ea1i qu\u00fd nh\u01b0 b\u1ea1ch kim, paladi v\u00e0 rhodium \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn v\u00ec kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao m\u00e0 kh\u00f4ng l\u00e0m m\u1ea5t \u0111i t\u00ednh ch\u1ea5t x\u00fac t\u00e1c c\u1ee7a ch\u00fang. Ch\u00fang \u0111\u1ea3m b\u1ea3o b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ti\u1ebfp t\u1ee5c ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 ngay c\u1ea3 d\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00e1p su\u1ea5t do \u0111\u1ed9ng c\u01a1 t\u1ea1o ra. kh\u00ed th\u1ea3i<\/strong>.<\/p>\n\n\n\n

        Kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng trong nh\u1eefng \u0111i\u1ec1u ki\u1ec7n n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng v\u00ec \u0111\u1ed9ng c\u01a1 \u0111\u1ed1t trong<\/strong> t\u1ea1o ra nhi\u1ec7t \u0111\u1ec3 ph\u00e1 h\u1ee7y c\u00e1c v\u1eadt li\u1ec7u k\u00e9m b\u1ec1n h\u01a1n. Nhi\u1ec7t \u0111\u1ed9 cao c\u0169ng \u0111\u1ea3m b\u1ea3o c\u00e1c ph\u1ea3n \u1ee9ng di\u1ec5n ra trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c di\u1ec5n ra nhanh ch\u00f3ng v\u00e0 hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n

        9. T\u00e1c \u0111\u1ed9ng c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c \u0111\u1ebfn hi\u1ec7u su\u1ea5t xe v\u00e0 hi\u1ec7u qu\u1ea3 nhi\u00ean li\u1ec7u<\/h2>\n\n\n\n

        M\u1ed9t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ho\u1ea1t \u0111\u1ed9ng t\u1ed1t c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a xe hi\u1ec7u qu\u1ea3 nhi\u00ean li\u1ec7u<\/strong> V\u00e0 hi\u1ec7u su\u1ea5t \u0111\u1ed9ng c\u01a1<\/strong> b\u1eb1ng c\u00e1ch \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng x\u1ea3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1i \u01b0u. B\u1eb1ng c\u00e1ch gi\u1ea3m l\u01b0\u1ee3ng ch\u1ea5t \u00f4 nhi\u1ec5m c\u00f3 h\u1ea1i trong kh\u00ed th\u1ea3i, b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c gi\u00fap \u0111\u1ed9ng c\u01a1 v\u1eadn h\u00e0nh \u00eam \u00e1i h\u01a1n. Ng\u01b0\u1ee3c l\u1ea1i, b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c b\u1ecb t\u1eafc ho\u1eb7c tr\u1ee5c tr\u1eb7c c\u00f3 th\u1ec3 g\u00e2y ra \u00e1p su\u1ea5t ng\u01b0\u1ee3c, l\u00e0m gi\u1ea3m c\u00f4ng su\u1ea5t \u0111\u1ed9ng c\u01a1 v\u00e0 hi\u1ec7u su\u1ea5t nhi\u00ean li\u1ec7u.<\/p>\n\n\n\n

        Vi\u1ec7c b\u1ea3o tr\u00ec b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c \u0111\u00fang c\u00e1ch c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn hi\u1ec7u su\u1ea5t xe<\/strong>, v\u00ec n\u00f3 \u0111\u1ea3m b\u1ea3o vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i kh\u00ed th\u1ea3i hi\u1ec7u qu\u1ea3. Khi b\u1ed9 chuy\u1ec3n \u0111\u1ed5i b\u1ecb t\u1eafc ho\u1eb7c h\u01b0 h\u1ecfng, n\u00f3 c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn t\u0103ng t\u1ed1c k\u00e9m, \u0111\u00e1nh l\u1eeda sai v\u00e0 gi\u1ea3m hi\u1ec7u su\u1ea5t nhi\u00ean li\u1ec7u.<\/p>\n\n\n\n

        10. T\u01b0\u01a1ng lai c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c v\u00e0 vai tr\u00f2 c\u1ee7a kim lo\u1ea1i qu\u00fd<\/h2>\n\n\n\n

        Khi ch\u00fang ta h\u01b0\u1edbng t\u1edbi c\u00e1c quy \u0111\u1ecbnh v\u1ec1 m\u00f4i tr\u01b0\u1eddng nghi\u00eam ng\u1eb7t h\u01a1n v\u00e0 c\u00f4ng ngh\u1ec7 s\u1ea1ch h\u01a1n, vai tr\u00f2 c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c v\u00e0 kim lo\u1ea1i qu\u00fd s\u1ebd ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n. Nh\u1eefng ti\u1ebfn b\u1ed9 trong c\u00f4ng ngh\u1ec7 \u00f4 t\u00f4<\/strong> v\u00e0 vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i hi\u1ec7u qu\u1ea3 h\u01a1n c\u00f3 th\u1ec3 s\u1ebd l\u00e0m gi\u1ea3m s\u1ef1 ph\u1ee5 thu\u1ed9c v\u00e0o kim lo\u1ea1i qu\u00fd trong t\u01b0\u01a1ng lai. Tuy nhi\u00ean, hi\u1ec7n t\u1ea1i, b\u1ea1ch kim<\/strong>, paladi<\/strong>, V\u00e0 rhodi<\/strong> v\u1eabn r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n kh\u00ed th\u1ea3i<\/strong> v\u00e0 gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng c\u1ee7a ch\u00fang \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n

        Nh\u1eefng ph\u00e1t tri\u1ec3n m\u1edbi, ch\u1eb3ng h\u1ea1n nh\u01b0 xe \u0111i\u1ec7n<\/strong> V\u00e0 pin nhi\u00ean li\u1ec7u hydro<\/strong>, c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m nhu c\u1ea7u s\u1eed d\u1ee5ng b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c v\u1ec1 l\u00e2u d\u00e0i. Tuy nhi\u00ean, cho \u0111\u1ebfn l\u00fac \u0111\u00f3, nh\u1eefng kim lo\u1ea1i qu\u00fd n\u00e0y v\u1eabn s\u1ebd l\u00e0 c\u1ed1t l\u00f5i c\u1ee7a h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t kh\u00ed th\u1ea3i tr\u00ean h\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i xe.<\/p>\n\n\n\n

        K\u1ebft lu\u1eadn: Nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb<\/h2>\n\n\n\n
          \n
        • B\u1ea1ch kim<\/strong>, paladi<\/strong>, V\u00e0 rhodi<\/strong> l\u00e0 c\u1ea7n thi\u1ebft cho ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c.<\/li>\n\n\n\n
        • Nh\u1eefng kim lo\u1ea1i n\u00e0y x\u00fac t\u00e1c qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i c\u00e1c lo\u1ea1i kh\u00ed \u0111\u1ed9c h\u1ea1i nh\u01b0 cacbon monoxit<\/strong>, hydrocarbon<\/strong>, V\u00e0 oxit nit\u01a1<\/strong> th\u00e0nh nh\u1eefng ch\u1ea5t an to\u00e0n h\u01a1n.<\/li>\n\n\n\n
        • S\u1ef1 khan hi\u1ebfm v\u00e0 gi\u00e1 tr\u1ecb c\u1ee7a nh\u1eefng kim lo\u1ea1i qu\u00fd n\u00e0y g\u00f3p ph\u1ea7n l\u00e0m t\u0103ng chi ph\u00ed c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c v\u00e0 khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh m\u1ee5c ti\u00eau c\u1ee7a n\u1ea1n tr\u1ed9m c\u1eafp.<\/li>\n\n\n\n
        • B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n kh\u00ed th\u1ea3i<\/strong> v\u00e0 c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed<\/strong>.<\/li>\n\n\n\n
        • S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c c\u00f4ng ngh\u1ec7 s\u1ea1ch h\u01a1n c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m nhu c\u1ea7u s\u1eed d\u1ee5ng b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c trong t\u01b0\u01a1ng lai, nh\u01b0ng hi\u1ec7n t\u1ea1i, nh\u1eefng kim lo\u1ea1i n\u00e0y v\u1eabn \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i t\u1eeb xe c\u1ed9.<\/li>\n<\/ul>\n\n\n\n

          B\u1eb1ng c\u00e1ch hi\u1ec3u \u0111\u01b0\u1ee3c vai tr\u00f2 quan tr\u1ecdng c\u1ee7a nh\u1eefng kim lo\u1ea1i n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 \u0111\u00e1nh gi\u00e1 cao h\u01a1n t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c b\u1ea3o tr\u00ec b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c \u0111\u1ed1i v\u1edbi c\u1ea3 hi\u1ec7u su\u1ea5t c\u1ee7a xe v\u00e0 s\u1ee9c kh\u1ecfe m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n

          <\/p>","protected":false},"excerpt":{"rendered":"

          Kh\u00e1m ph\u00e1 c\u00e1ch c\u00e1c kim lo\u1ea1i qu\u00fd nh\u01b0 b\u1ea1ch kim, pala\u0111i v\u00e0 rhodi trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c bi\u1ebfn kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i th\u00e0nh kh\u00f4ng kh\u00ed s\u1ea1ch h\u01a1n, b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng c\u1ee7a ch\u00fang ta.<\/p>","protected":false},"author":1,"featured_media":3352,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"googlesitekit_rrm_CAowgdPcCw:productID":"","footnotes":""},"categories":[98],"tags":[458,467,461,436,106,465,456,462,466,429,32,459,404,101,108,405,460,113,27,463,464],"class_list":["post-3351","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guide","tag-automotive-emissions","tag-automotive-technology","tag-car-parts","tag-carb","tag-catalytic-converter","tag-chemical-reactions","tag-cost-savings","tag-emissions-control","tag-environmental-protection","tag-epa","tag-exhaust-system","tag-oxidation","tag-p0420","tag-palladium","tag-platinum","tag-precious-metals","tag-reduction","tag-rhodium","tag-three-way-catalyst","tag-twc","tag-vehicle-performance"],"_links":{"self":[{"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/posts\/3351","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/comments?post=3351"}],"version-history":[{"count":0,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/posts\/3351\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/media\/3352"}],"wp:attachment":[{"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/media?parent=3351"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/categories?post=3351"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/tags?post=3351"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}