{"id":28748,"date":"2019-05-15T21:01:00","date_gmt":"2019-05-15T14:01:00","guid":{"rendered":"https:\/\/ttud.com.vn\/?p=28748"},"modified":"2021-10-03T21:02:03","modified_gmt":"2021-10-03T14:02:03","slug":"my-tao-duoc-loai-vat-lieu-go-chiu-lua","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/my-tao-duoc-loai-vat-lieu-go-chiu-lua\/","title":{"rendered":"M\u1ef9 t\u1ea1o \u0111\u01b0\u1ee3c lo\u1ea1i v\u1eadt li\u1ec7u g\u1ed7 ch\u1ecbu l\u1eeda"},"content":{"rendered":"\n

C\u00e1c nh\u00e0 khoa h\u1ecdc M\u1ef9 tr\u01b0\u1edbc \u0111\u00e2y \u0111\u00e3 th\u00e0nh c\u00f4ng trong vi\u1ec7c t\u1ea1o ra lo\u1ea1i g\u1ed7 c\u1ee9ng h\u01a1n th\u00e9p v\u00e0 nay trong th\u1eed nghi\u1ec7m m\u1edbi, h\u1ecd \u0111\u00e3 ch\u1ee9ng minh \u0111\u01b0\u1ee3c t\u00ednh ch\u1ecbu l\u1eeda c\u1ee7a lo\u1ea1i v\u1eadt li\u1ec7u m\u1edbi n\u00e0y, m\u1edf ra tri\u1ec3n v\u1ecdng \u1ee9ng d\u1ee5ng trong c\u00e1c c\u1ea5u tr\u00fac ch\u1ecbu t\u1ea3i.<\/p>\n\n\n\n

\"V\u1eadt<\/a><\/figure>\n\n\n\n

<\/ins><\/p>\n\n\n\n

V\u1eadt li\u1ec7u g\u1ed7 v\u1eeba ch\u1ecbu l\u1ef1c v\u1eeba ch\u1ecbu l\u1eeda s\u1ebd b\u1ec1n h\u01a1n, cung c\u1ea5p \u0111\u1ee7 th\u1eddi gian qu\u00fd gi\u00e1 \u0111\u1ec3 c\u1ee9u ng\u01b0\u1eddi v\u00e0 t\u00e0i s\u1ea3n – \u1ea2nh : Pixels<\/p>\n\n\n\n

Theo t\u1ea1p ch\u00ed Advanced Functional Materials, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ti\u1ebfn h\u00e0nh ki\u1ec3m tra \u0111\u1ed9 ch\u1ecbu l\u1eeda lo\u1ea1i v\u1eadt li\u1ec7u b\u1ec1n \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n tr\u00ean n\u1ec1n g\u1ed7. So v\u1edbi g\u1ed7 th\u00f4ng th\u01b0\u1eddng, lo\u1ea1i v\u1eadt li\u1ec7u m\u1edbi c\u00f3 c\u1ea5u tr\u00fac \u0111\u1eb7c h\u01a1n, do \u0111\u00f3, trong tr\u01b0\u1eddng h\u1ee3p h\u1ecfa ho\u1ea1n, m\u1ed9t l\u1edbp than h\u00ecnh th\u00e0nh tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a n\u00f3, ng\u0103n ch\u1eb7n ng\u1ecdn l\u1eeda lan r\u1ed9ng h\u01a1n.

T\u1eeb tr\u01b0\u1edbc \u0111\u1ebfn nay, vi\u1ec7c s\u1eed d\u1ee5ng g\u1ed7 trong c\u00e1c c\u1ea5u tr\u00fac ch\u1ecbu t\u1ea3i b\u1ecb h\u1ea1n ch\u1ebf b\u1edfi 2 y\u1ebfu t\u1ed1: t\u00ednh d\u1ec5 ch\u00e1y v\u00e0 d\u1ec5 b\u1ecb s\u1ee5p \u0111\u1ed5 nhanh ch\u00f3ng trong tr\u01b0\u1eddng h\u1ee3p h\u1ecfa ho\u1ea1n. V\u1eadt li\u1ec7u g\u1ed7 truy\u1ec1n th\u1ed1ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n ch\u1ed1ng ch\u00e1y nhi\u1ec1u h\u01a1n nh\u1edd c\u00e1c hi\u1ec7u \u1ee9ng h\u00f3a h\u1ecdc. V\u00ed d\u1ee5, c\u00f3 th\u1ec3 ng\u00e2m t\u1ea9m g\u1ed7 b\u1eb1ng ch\u1ea5t ch\u1ed1ng ch\u00e1y – h\u1ee3p ch\u1ea5t l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh ch\u00e1y. M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c l\u00e0 ph\u1ee7 c\u00e1c h\u1ea1t nano v\u00f4 c\u01a1 kh\u00f4ng ch\u00e1y. Tuy nhi\u00ean, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p n\u00e0y th\u01b0\u1eddng \u0111\u1eaft \u0111\u1ecf ho\u1eb7c kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi ti\u00eau chu\u1ea9n m\u00f4i tr\u01b0\u1eddng ho\u1eb7c ti\u00eau chu\u1ea9n v\u1ec7 sinh.

Nh\u00f3m nghi\u00ean c\u1ee9u do Liangbin Hu (\u0110\u1ea1i h\u1ecdc Maryland, M\u1ef9) tr\u01b0\u1edbc \u0111\u00e2y \u0111\u00e3 th\u00e0nh c\u00f4ng tr\u00f4ng vi\u1ec7c t\u1ea1o ra lo\u1ea1i g\u1ed7 c\u1ee9ng h\u01a1n th\u00e9p. \u0110\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y, g\u1ed7 \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng natri hydroxit (hay th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 x\u00fat ho\u1eb7c x\u00fat \u0103n da, l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t v\u00f4 c\u01a1 c\u1ee7a natri ) v\u00e0 natri sunfua (h\u1ee3p ch\u1ea5t h\u00f3a h\u1ecdc Na\u2082S), lo\u1ea1i b\u1ecf m\u1ed9t ph\u1ea7n lignin kh\u1ecfi g\u1ed7 – m\u1ed9t lo\u1ea1i polymer h\u1eefu c\u01a1 l\u00e0m b\u1ec1n th\u00e0nh t\u1ebf b\u00e0o g\u1ed7. G\u1ed7 sau \u0111\u00f3 \u0111\u01b0\u1ee3c \u00e9p n\u00f3ng, gi\u00fap thu \u0111\u01b0\u1ee3c m\u1ed9t v\u1eadt li\u1ec7u r\u1eafn m\u00e0 kh\u00f4ng c\u00f2n c\u00e1c k\u00eanh nh\u1ecf \u0111\u1eb7c tr\u01b0ng c\u1ee7a g\u1ed7 t\u1ef1 nhi\u00ean, c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc c\u1ee7a n\u00f3.

Trong c\u00f4ng tr\u00ecnh nghi\u00ean c\u1ee9u m\u1edbi, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 th\u1eed nghi\u1ec7m v\u1eadt li\u1ec7u g\u1ed7 m\u1edbi v\u1ec1 \u0111\u1ed9 ch\u1ecbu nhi\u1ec7t. H\u00f3a ra, lo\u1ea1i v\u1eadt li\u1ec7u n\u00e0y ch\u1ecbu l\u1eeda t\u1ed1t h\u01a1n g\u1ed7 t\u1ef1 nhi\u00ean. Th\u1ee9 nh\u1ea5t, c\u1ea5u tr\u00fac d\u00e0y \u0111\u1eb7c h\u01a1n ng\u0103n ch\u1eb7n s\u1ef1 lan truy\u1ec1n oxy b\u00ean trong v\u1eadt li\u1ec7u, do oxy h\u1ed7 tr\u1ee3 qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y v\u00e0 t\u0103ng t\u00ednh d\u1ec5 ch\u00e1y. Th\u1ee9 hai, m\u1ed9t l\u1edbp than ch\u00e1y c\u00e1ch l\u1eeda li\u00ean t\u1ee5c \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a v\u1eadt li\u1ec7u, ng\u0103n ch\u1eb7n s\u1ef1 lan r\u1ed9ng c\u1ee7a ng\u1ecdn l\u1eeda.

Do \u0111\u00f3, th\u1eddi gian \u0111\u1ec3 b\u1eaft l\u1eeda k\u00e9o d\u00e0i, g\u1ea7n nh\u01b0 t\u0103ng g\u1ea5p \u0111\u00f4i, c\u00f2n t\u1ed1c \u0111\u1ed9 gi\u1ea3i ph\u00f3ng nhi\u1ec7t t\u1ed1i \u0111a khi ch\u00e1y m\u1ea1nh gi\u1ea3m h\u01a1n 1\/3. Ngo\u00e0i ra, sau khi ti\u1ebfp x\u00fac v\u1edbi ng\u1ecdn l\u1eeda trong 90 gi\u00e2y, c\u01b0\u1eddng \u0111\u1ed9 n\u00e9n c\u1ee7a v\u1eadt li\u1ec7u m\u1edbi cao h\u01a1n 82 l\u1ea7n so v\u1edbi g\u1ed7 b\u00ecnh th\u01b0\u1eddng. Do \u0111\u00f3, c\u00e1c c\u1ea5u tr\u00fac ch\u1ecbu l\u1ef1c b\u1eb1ng v\u1eadt li\u1ec7u nh\u01b0 v\u1eady s\u1ebd b\u1ec1n h\u01a1n, cung c\u1ea5p \u0111\u1ee7 th\u1eddi gian qu\u00fd gi\u00e1 \u0111\u1ec3 c\u1ee9u ng\u01b0\u1eddi v\u00e0 t\u00e0i s\u1ea3n. C\u00e1c t\u00e1c gi\u1ea3 c\u1ee7a s\u1ea3n ph\u1ea9m m\u1edbi kh\u1eb3ng \u0111\u1ecbnh r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c c\u00f4ng ngh\u1ec7 n\u00e0y kh\u00f4ng s\u1eed d\u1ee5ng c\u00e1c h\u00f3a ch\u1ea5t \u0111\u1ed9c h\u1ea1i \u0111\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n

Theo M\u1ed9t th\u1ebf gi\u1edbi<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e1c nh\u00e0 khoa h\u1ecdc M\u1ef9 tr\u01b0\u1edbc \u0111\u00e2y \u0111\u00e3 th\u00e0nh c\u00f4ng trong vi\u1ec7c t\u1ea1o ra lo\u1ea1i g\u1ed7 c\u1ee9ng h\u01a1n th\u00e9p v\u00e0 nay trong th\u1eed nghi\u1ec7m m\u1edbi, h\u1ecd \u0111\u00e3 ch\u1ee9ng minh \u0111\u01b0\u1ee3c t\u00ednh ch\u1ecbu l\u1eeda c\u1ee7a lo\u1ea1i v\u1eadt li\u1ec7u m\u1edbi n\u00e0y, m\u1edf ra tri\u1ec3n v\u1ecdng \u1ee9ng d\u1ee5ng trong c\u00e1c c\u1ea5u tr\u00fac ch\u1ecbu t\u1ea3i. V\u1eadt li\u1ec7u g\u1ed7 v\u1eeba […]<\/p>\n","protected":false},"author":17,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-28748","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\/28748","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\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=28748"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28748\/revisions"}],"predecessor-version":[{"id":28749,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28748\/revisions\/28749"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=28748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=28748"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=28748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}