![\"alt\"](\"http:\/\/khoahocvacongnghevietnam.com.vn\/images\/stories\/thang-11-2017\/911-kythuat.jpg\")
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M\u1ed9t nh\u00f3m c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u c\u1ee7a \u0110\u1ea1i h\u1ecdc California, Davis (UC Davis) v\u1eeba m\u1edbi ph\u00e1t hi\u1ec7n ra ph\u01b0\u01a1ng ph\u00e1p h\u1ebft s\u1ee9c \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 s\u1ea3n xu\u1ea5t b\u1ecdt x\u1ed1p nano kim lo\u1ea1i paladi c\u00f3 m\u1eadt \u0111\u1ed9 th\u1ea5p, gi\u00fap c\u1ea3i thi\u1ec7n c\u00f4ng ngh\u1ec7 l\u01b0u tr\u1eef hydro.<\/p>\n
B\u1ecdt x\u1ed1p nano l\u00e0 phi\u00ean b\u1ea3n b\u1ecdt x\u1ed1p c\u1ee7a m\u1ed9t s\u1ed1 ch\u1ea5t li\u1ec7u v\u1edbi nhi\u1ec1u l\u1ed7 h\u1ed5ng si\u00eau nh\u1ecf. B\u1ecdt x\u1ed1p nano kim lo\u1ea1i l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n kho\u1ea3ng 20 n\u0103m tr\u01b0\u1edbc, \u0111\u01b0\u1ee3c coi l\u00e0 lo\u1ea1i v\u1eadt li\u1ec7u ti\u1ec1m n\u0103ng cho nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau. C\u1ea5u tr\u00fac x\u1ed1p r\u1ea5t c\u1ee9ng, ch\u1eafc v\u00e0 nh\u1eb9. H\u1ea1t nano Paladi v\u00e0 m\u1ed9t s\u1ed1 lo\u1ea1i h\u1ea1t nano kim lo\u1ea1i kh\u00e1c l\u00e0 c\u00e1c ch\u1ea5t x\u00fac t\u00e1c, \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh l\u01b0u tr\u1eef v\u00e0 gi\u1ea3i ph\u00f3ng hydro m\u1ed9t c\u00e1ch nhanh ch\u00f3ng, \u0111\u1ed3ng th\u1eddi c\u0169ng \u0111\u01b0\u1ee3c xem l\u00e0 nh\u1eefng lo\u1ea1i v\u1eadt li\u1ec7u l\u00fd t\u01b0\u1edfng trong s\u1ea3n xu\u1ea5t pin nhi\u00ean li\u1ec7u hydro.<\/p>\n
T\u00e1c gi\u1ea3 nghi\u00ean c\u1ee9u Kai Liu, gi\u00e1o s\u01b0 v\u1eadt l\u00fd thu\u1ed9c Tr\u01b0\u1eddng Khoa h\u1ecdc, UC Davis cho bi\u1ebft: vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i b\u1ecdt x\u1ed1p nano kim lo\u1ea1i \u1edf quy m\u00f4 c\u00f4ng nghi\u1ec7p ph\u1ea3i v\u01b0\u1ee3t qua nh\u1eefng th\u00e1ch th\u1ee9c bao g\u1ed3m c\u00e1c y\u00eau c\u1ea7u ch\u1eb7t ch\u1ebd v\u1ec1 \u0111i\u1ec1u ki\u1ec7n s\u1ea3n xu\u1ea5t, m\u1ee9c \u0111\u1ed9 \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng v\u00e0 \u0111\u1ed9 k\u1ebft tinh. Ngo\u00e0i ra, vi\u1ec7c s\u1ea3n xu\u1ea5t lo\u1ea1i b\u1ecdt c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng c\u1ef1c k\u1ef3 nh\u1eb9 m\u00e0 kh\u00f4ng g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a ch\u00fang kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t vi\u1ec7c d\u1ec5 th\u1ef1c hi\u1ec7n.<\/p>\n
Liu chia s\u1ebb: Th\u00f4ng th\u01b0\u1eddng, k\u1ef9 thu\u1eadt s\u1ea3n xu\u1ea5t b\u1ecdt kim lo\u1ea1i truy\u1ec1n th\u1ed1ng \u0111\u00f2i h\u1ecfi ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong m\u00f4i tr\u01b0\u1eddng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd, trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00e1p su\u1ea5t cao. Tuy nhi\u00ean, nh\u00f3m nghi\u00ean c\u1ee9u UC Davis \u0111\u00e3 \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p nh\u00fang h\u00f3a h\u1ecdc, th\u00edch h\u1ee3p s\u1eed d\u1ee5ng trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p c\u0169ng nh\u01b0 th\u00edch nghi v\u1edbi c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u b\u1ecdt x\u1ed1p kim lo\u1ea1i c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng nh\u1eb9 kh\u00e1c.<\/p>\n
V\u1ecb chuy\u00ean gia cho bi\u1ebft n\u00f3i: Ph\u01b0\u01a1ng ph\u00e1p m\u1edbi m\u1edf ra tri\u1ec3n v\u1ecdng trong kh\u1ea3 n\u0103ng kh\u00e1m ph\u00e1 v\u1eadt li\u1ec7u m\u1edbi \u0111\u1ea7y th\u00fa v\u1ecb.<\/p>\n
K\u1ef9 thu\u1eadt m\u1edbi s\u1eed d\u1ee5ng c\u00e1c nanowire c\u1ee7a palladium l\u00e0m k\u1ebft c\u1ea5u kh\u1ed1i ti\u00eau chu\u1ea9n. \u0110\u1ea7u ti\u00ean, c\u00e1c chuy\u00ean gia ti\u1ebfn h\u00e0nh \u0111\u1eb7t nanowire trong n\u01b0\u1edbc v\u00e0 tr\u1ed9n th\u00e0nh m\u1ed9t h\u1ed7n h\u1ee3p c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o ra c\u00e1c rung \u0111\u1ed9ng si\u00eau \u00e2m. H\u1ed7n h\u1ee3p \u0111\u01b0\u1ee3c nh\u00fang nhanh ch\u00f3ng v\u00e0o dung d\u1ecbch nit\u01a1 l\u1ecfng \u0111\u1ec3 l\u00e0m \u0111\u00f3ng b\u0103ng t\u1ea1i ch\u1ed7 c\u00e1c nanowire. Cu\u1ed1i c\u00f9ng, h\u1ecd \u0111\u1eb7t h\u1ed7n h\u1ee3p ch\u1ee9a nanowire \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u00f3ng b\u0103ng trong m\u00f4i tr\u01b0\u1eddng ch\u00e2n kh\u00f4ng cho \u0111\u1ebfn khi b\u0103ng tan v\u00e0 \u0111\u1ec3 l\u1ea1i m\u1ed9t b\u1ecdt x\u1ed1p nanowire kim lo\u1ea1i paladi nguy\u00ean ch\u1ea5t. C\u00e1c nh\u00e0 khoa h\u1ecdc nh\u1eadn th\u1ea5y m\u1eadt \u0111\u1ed9 v\u1eadt li\u1ec7u trong d\u1ea1ng kim lo\u1ea1i d\u1ea1ng kh\u1ed1i ch\u1ec9 b\u1eb1ng m\u1ed9t ph\u1ea7n ngh\u00ecn m\u1eadt \u0111\u1ed9 ph\u00e2n t\u1eed kim lo\u1ea1i palladium v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 s\u1eed d\u1ee5ng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/p>\n
B\u00ean c\u1ea1nh \u0111\u00f3, nh\u00f3m nghi\u00ean c\u1ee9u c\u0169ng t\u00ecm hi\u1ec3u c\u00e1c \u0111\u1eb7c t\u00ednh l\u01b0u tr\u1eef hydro c\u1ee7a b\u1ecdt nano kim lo\u1ea1i paladi v\u00e0 ph\u00e1t hi\u1ec7n ra kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i v\u00e0 t\u1ef7 l\u1ec7 h\u1ea5p th\u1ee5 l\u00fd t\u01b0\u1edfng c\u1ee7a v\u1eadt li\u1ec7u. Sau khi tr\u1ea3i qua c\u00e1c \u0111\u00e1nh gi\u00e1 b\u1eb1ng c\u00f4ng ngh\u1ec7 l\u01b0\u1ee3ng t\u1eed chuy\u00ean d\u1ee5ng t\u1ea1i Ph\u00f2ng th\u00ed nghi\u1ec7m Nhi\u1ec7t l\u1ea1nh Peter A. Rock thu\u1ed9c UC Davis, lo\u1ea1i v\u1eadt li\u1ec7u b\u1ecdt nano th\u1ec3 hi\u1ec7n t\u00ednh \u1ed5n \u0111\u1ecbnh cao c\u1ee7a nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc.<\/p>\n
(Nasati)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":" M\u1ed9t nh\u00f3m c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u c\u1ee7a \u0110\u1ea1i h\u1ecdc California, Davis (UC Davis) v\u1eeba m\u1edbi ph\u00e1t hi\u1ec7n ra ph\u01b0\u01a1ng ph\u00e1p h\u1ebft s\u1ee9c \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 s\u1ea3n xu\u1ea5t b\u1ecdt x\u1ed1p nano kim lo\u1ea1i paladi c\u00f3 m\u1eadt \u0111\u1ed9 th\u1ea5p, gi\u00fap c\u1ea3i thi\u1ec7n c\u00f4ng ngh\u1ec7 l\u01b0u tr\u1eef hydro. B\u1ecdt x\u1ed1p nano l\u00e0 phi\u00ean b\u1ea3n b\u1ecdt x\u1ed1p c\u1ee7a m\u1ed9t […]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-7816","post","type-post","status-publish","format-standard","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7816","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=7816"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7816\/revisions"}],"predecessor-version":[{"id":7817,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7816\/revisions\/7817"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=7816"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=7816"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=7816"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}