{"id":8774,"date":"2018-03-08T09:57:10","date_gmt":"2018-03-08T02:57:10","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=8774"},"modified":"2018-03-16T09:43:14","modified_gmt":"2018-03-16T02:43:14","slug":"da-tim-ra-loai-vat-lieu-ben-hon-thep-200-lan-lam-tu-dau-dau-nanh","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/da-tim-ra-loai-vat-lieu-ben-hon-thep-200-lan-lam-tu-dau-dau-nanh\/","title":{"rendered":"\u0110\u00e3 t\u00ecm ra lo\u1ea1i v\u1eadt li\u1ec7u b\u1ec1n h\u01a1n th\u00e9p 200 l\u1ea7n l\u00e0m t\u1eeb\u2026 d\u1ea7u \u0111\u1eadu n\u00e0nh"},"content":{"rendered":"

C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 nghi\u00ean c\u1ee9u v\u00e0 ch\u1ebf t\u1ea1o ra \u0111\u01b0\u1ee3c m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u m\u1edbi c\u00f3 \u0111\u1ed9 b\u1ec1n ch\u1eafc cao h\u01a1n th\u00e9p t\u1edbi 200 l\u1ea7n t\u1eeb\u2026 d\u1ea7u \u0111\u1eadu n\u00e0nh.<\/h2>\n
<\/div>\n
D\u1ea7u \u0111\u1eadu n\u00e0nh l\u00e0 m\u1ed9t lo\u1ea1i nguy\u00ean li\u1ec7u d\u00f9ng \u0111\u1ec3 n\u1ea5u \u0103n kh\u00e1 ph\u1ed5 bi\u1ebfn trong c\u00e1c gia \u0111\u00ecnh hi\u1ec7n nay. V\u00e0 c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 t\u00ecm ra c\u00e1ch \u0111\u1ec3 bi\u1ebfn lo\u1ea1i d\u1ea7u \u0103n t\u01b0\u1edfng ch\u1eebng nh\u01b0 r\u1ea5t \u0111\u1ed7i b\u00ecnh th\u01b0\u1eddng n\u00e0y th\u00e0nh m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u Graphene (M\u1ed9t ki\u1ec3u k\u1ebft c\u1ea5u ph\u00e2n t\u1eed n\u01a1i c\u00e1c nguy\u00ean t\u1eed cacbon k\u1ebft n\u1ed1i v\u1edbi nhau theo h\u00ecnh l\u1ee5c gi\u00e1c tu\u1ea7n ho\u00e0n th\u00e0nh nh\u1eefng t\u1ea5m v\u1eadt li\u1ec7u v\u00f4 c\u00f9ng b\u1ec1n ch\u1eafc).<\/div>\n
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\u0110\u01b0\u1ee3c bi\u1ebft, k\u1ebft c\u1ea5u Graphene n\u00e0y s\u1ebd gi\u00fap t\u1ea1o ra nh\u1eefng lo\u1ea1i v\u1eadt li\u1ec7u v\u1edbi nh\u1eefng t\u00ednh n\u0103ng v\u00e0 \u01b0u \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i nh\u01b0 \u0111\u1ed9 b\u1ec1n g\u1ea5p 200 l\u1ea7n so v\u1edbi th\u00e9p, c\u1ee9ng h\u01a1n kim c\u01b0\u01a1ng v\u00e0 l\u1ea1i v\u00f4 c\u00f9ng d\u1ebbo dai. D\u01b0\u1edbi nh\u1eefng \u0111i\u1ec1u ki\u1ec7n \u0111\u1eb7c bi\u1ec7t, ch\u00fang c\u00f2n c\u00f3 th\u1ec3 t\u1ef1 chuy\u1ec3n h\u00f3a th\u00e0nh m\u1ed9t lo\u1ea1i ch\u1ea5t si\u00eau d\u1eabn, truy\u1ec1n t\u1ea3i \u0111i\u1ec7n n\u0103ng v\u1edbi m\u1ee9c \u0111i\u1ec7n tr\u1edf g\u1ea7n nh\u01b0 b\u1eb1ng 0.<\/p>\n

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\"\u0110\u00e3<\/div>\n
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V\u1eadt li\u1ec7u Graphene v\u1edbi c\u1ea5u tr\u00fac cacbon h\u00ecnh l\u1ee5c gi\u00e1c tr\u1ea3i d\u1ea3i v\u00f4 c\u00f9ng b\u1ec1n ch\u1eafc<\/p>\n<\/div>\n<\/div>\n

Theo c\u00e1c nh\u00e0 khoa h\u1ecdc d\u1ef1 ki\u1ebfn th\u00ec lo\u1ea1i v\u1eadt li\u1ec7u mang k\u1ebft c\u1ea5u Graphene m\u1edbi n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong c\u1ea3 ng\u00e0nh \u0111i\u1ec7n t\u1eed, ch\u1ebf t\u1ea1o pin n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi hay th\u1eadm ch\u00ed l\u00e0 c\u1ea3 trong y h\u1ecdc.<\/p>\n

Tuy v\u1eady nh\u01b0ng chi ph\u00ed \u0111\u1ec3 t\u1ea1o ra lo\u1ea1i v\u1eadt li\u1ec7u Graphene n\u00e0y t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn v\u00ec ch\u00fang ph\u1ea3i \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p trong c\u00e1c lo\u1ea1i m\u00e1y m\u00f3c thi\u1ebft b\u1ecb \u0111\u1eb7c bi\u1ec7t, c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o ra nhi\u1ec7t \u0111\u1ed9 c\u1ef1c l\u1edbn. Ch\u01b0a k\u1ec3 t\u1edbi vi\u1ec7c nguy\u00ean li\u1ec7u t\u1ea1o ra ch\u00fang c\u0169ng ph\u1ea3i c\u00f3 \u0111\u1ed9 tinh khi\u1ebft r\u1ea5t l\u1edbn khi\u1ebfn cho gi\u00e1 th\u00e0nh c\u1ee7a nh\u1eefng lo\u1ea1i v\u1eadt li\u1ec7u Graphene tr\u1edf n\u00ean v\u00f4 c\u00f9ng \u0111\u1eaft \u0111\u1ecf v\u00e0 kh\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong t\u01b0\u01a1ng lai g\u1ea7n.<\/p>\n

Th\u1ebf nh\u01b0ng, t\u1ea5t c\u1ea3 nh\u1eefng kh\u00f3 kh\u0103n tr\u00ean \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e1c nh\u00e0 khoa h\u1ecdc t\u1ea1i Australia gi\u1ea3i quy\u1ebft ho\u00e0n to\u00e0n khi h\u1ecd \u0111\u00e3 ph\u00e1t minh ra m\u1ed9t c\u00f4ng ngh\u1ec7 m\u1edbi cho ph\u00e9p t\u1ed5ng h\u1ee3p ra \u0111\u01b0\u1ee3c v\u1eadt li\u1ec7u Graphene trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng th\u00f4ng th\u01b0\u1eddng v\u00e0 v\u1edbi nguy\u00ean v\u1eadt li\u1ec7u ch\u1ec9 l\u00e0 d\u1ea7u \u0111\u1eadu n\u00e0nh m\u00e0 th\u00f4i.<\/p>\n

Nh\u00e0 nghi\u00ean c\u1ee9u Zhao Jun Han, \u0111\u1ebfn t\u1eeb CSIRO (Commonwealth Scientific and Industrial Research Organisation), t\u1ed5 ch\u1ee9c nghi\u00ean c\u1ee9u \u0111\u1ed9c l\u1eadp c\u1ee7a Ch\u00ednh quy\u1ec1n li\u00ean bang t\u1ea1i Australia \u0111\u00e3 cho bi\u1ebft: “Quy tr\u00ecnh ch\u1ebf t\u1ea1o ra lo\u1ea1i v\u1eadt li\u1ec7u Graphene n\u00e0y r\u1ea5t nhanh ch\u00f3ng, \u0111\u01a1n gi\u1ea3n, an to\u00e0n v\u00e0 c\u00f3 ti\u1ec1m n\u0103ng m\u1edf r\u1ed9ng tr\u00ean quy m\u00f4 l\u1edbn. Ch\u00fang t\u00f4i hi v\u1ecdng c\u00f4ng ngh\u1ec7 duy nh\u1ea5t hi\u1ec7n nay m\u00e0 ch\u00fang t\u00f4i \u0111ang nghi\u00ean c\u1ee9u n\u00e0y s\u1ebd gi\u00fap gi\u1ea3m gi\u00e1 th\u00e0nh s\u1ea3n xu\u1ea5t v\u1eadt li\u1ec7u Graphene, t\u0103ng t\u00ednh \u1ee9ng d\u1ee5ng th\u1ef1c ti\u1ec5n c\u1ee7a lo\u1ea1i v\u1eadt li\u1ec7u n\u00e0y trong t\u01b0\u01a1ng lai.”<\/p>\n

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\"\u0110\u00e3<\/div>\n
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T\u1ea5m v\u1eadt li\u1ec7u Graphene \u0111\u01b0\u1ee3c t\u1ea1o ra t\u1eeb d\u1ea7u \u0111\u1eadu n\u00e0nh trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng<\/p>\n<\/div>\n<\/div>\n

Hi\u1ec7n t\u1ea1i, nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 \u0111\u1eb7t t\u00ean cho c\u00f4ng ngh\u1ec7 m\u1edbi n\u00e0y l\u00e0 GraphAir v\u00e0 theo c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u m\u00f4 t\u1ea3 m\u1ed9t c\u00e1ch kh\u00e1i qu\u00e1t th\u00ec d\u1ea7u \u0111\u1eadu n\u00e0nh s\u1ebd \u0111\u01b0\u1ee3c nung n\u00f3ng trong m\u1ed9t \u1ed1ng th\u1ee7y tinh ch\u1ecbu nhi\u1ec7t trong kho\u1ea3ng 30 ph\u00fat \u0111\u1ec3 ch\u00fang t\u1ef1 ph\u00e2n r\u00e3 v\u00e0 h\u00ecnh th\u00e0nh c\u00e1c kh\u1ed1i cacbon m\u1edbi.<\/p>\n

Nh\u1eefng kh\u1ed1i cacbon n\u00e0y sau \u0111\u00f3 s\u1ebd \u0111\u01b0\u1ee3c l\u00e0m ngu\u1ed9i v\u00e0 d\u00e0n \u0111\u1ec1u tr\u00ean nh\u1eefng t\u1ea5m kim lo\u1ea1i nickel v\u00e0 t\u1ea1o th\u00e0nh nh\u1eefng t\u1ea5m nguy\u00ean li\u1ec7u Graphene v\u1edbi \u0111\u1ed9 d\u00e0y ch\u1ec9 kho\u1ea3ng 1 nanometre m\u00e0 th\u00f4i (nh\u1ecf h\u01a1n 80,000 l\u1ea7n so v\u1edbi s\u1ee3i t\u00f3c c\u1ee7a con ng\u01b0\u1eddi).<\/p>\n

Nh\u00e0 nghi\u00ean c\u1ee9u Dong Han Seo, m\u1ed9t th\u00e0nh vi\u00ean trong nh\u00f3m s\u00e1ng ch\u1ebf cho bi\u1ebft, c\u00f4ng ngh\u1ec7 n\u00e0y kh\u00f4ng ch\u1ec9 gi\u00fap \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh t\u1ea1o ra v\u1eadt li\u1ec7u Graphene m\u00e0 n\u00f3 c\u00f2n gi\u00fap ti\u1ebft ki\u1ec7m chi ph\u00ed s\u1ea3n xu\u1ea5t r\u1ea5t nhi\u1ec1u: “Ch\u00fang ta nay \u0111\u00e3 c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf d\u1ea7u th\u1ea3i v\u00e0 s\u1eed d\u1ee5ng ch\u00fang \u0111\u1ec3 t\u1ea1o n\u00ean nh\u1eefng lo\u1ea1i v\u1eadt li\u1ec7u v\u00f4 c\u00f9ng h\u1eefu d\u1ee5ng.”<\/p>\n

D\u00f9 r\u1eb1ng quy tr\u00ecnh t\u1ed5ng h\u1ee3p n\u00e0y c\u00f3 nhanh h\u01a1n, ti\u1ebft ki\u1ec7m h\u01a1n so v\u1edbi ph\u01b0\u01a1ng ph\u00e1p t\u1ed5ng h\u1ee3p Graphene tr\u01b0\u1edbc \u0111\u00e2y nh\u01b0ng nh\u00f3m nghi\u00ean c\u1ee9u c\u0169ng \u0111\u00e3 th\u1eeba nh\u1eadn r\u1eb1ng hi\u1ec7n t\u1ea1i n\u00f3 v\u1eabn c\u00f2n m\u1ed9t s\u1ed1 h\u1ea1n ch\u1ebf c\u1ea7n ph\u1ea3i kh\u1eafc ph\u1ee5c tr\u01b0\u1edbc \u0111i \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng v\u00e0o th\u1ef1c ti\u1ec5n.<\/p>\n

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\u00a0M\u1ed9t trong s\u1ed1 nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m ph\u1ea3i k\u1ec3 \u0111\u1ebfn ch\u00ednh l\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c t\u1ea5m v\u1eadt li\u1ec7u Graphene \u0111\u01b0\u1ee3c t\u1ea1o ra t\u01b0\u01a1ng \u0111\u1ed1i nh\u1ecf. Theo nghi\u00ean c\u1ee9u th\u00ec t\u1edbi th\u1eddi \u0111i\u1ec3m hi\u1ec7n t\u1ea1i, t\u1ea5m v\u1eadt li\u1ec7u Graphene l\u1edbn nh\u1ea5t m\u00e0 nh\u00f3m nghi\u00ean c\u1ee9u n\u00e0y t\u1ea1o ra \u0111\u01b0\u1ee3c m\u1edbi ch\u1ec9 to b\u1eb1ng m\u1ed9t chi\u1ebfc th\u1ebb t\u00edn d\u1ee5ng m\u00e0 th\u00f4i.<\/div>\n<\/div>\n<\/div>\n

V\u00e0 \u0111\u1ec3 c\u00f3 th\u1ec3 \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7 n\u00e0y v\u00e0o th\u1ef1c ti\u1ec5n th\u00ec h\u1ecd c\u1ea7n ph\u1ea3i c\u1ea3i ti\u1ebfn quy tr\u00ecnh gi\u00fap t\u1ea1o ra nh\u1eefng t\u1ea5m v\u1eadt li\u1ec7u Graphene l\u1edbn h\u01a1n nh\u01b0 th\u1ebf r\u1ea5t nhi\u1ec1u.<\/p>\n

ngu\u1ed3n Genk<\/strong><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 nghi\u00ean c\u1ee9u v\u00e0 ch\u1ebf t\u1ea1o ra \u0111\u01b0\u1ee3c m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u m\u1edbi c\u00f3 \u0111\u1ed9 b\u1ec1n ch\u1eafc cao h\u01a1n th\u00e9p t\u1edbi 200 l\u1ea7n t\u1eeb\u2026 d\u1ea7u \u0111\u1eadu n\u00e0nh. D\u1ea7u \u0111\u1eadu n\u00e0nh l\u00e0 m\u1ed9t lo\u1ea1i nguy\u00ean li\u1ec7u d\u00f9ng \u0111\u1ec3 n\u1ea5u \u0103n kh\u00e1 ph\u1ed5 bi\u1ebfn trong c\u00e1c gia \u0111\u00ecnh hi\u1ec7n nay. V\u00e0 c\u00e1c nh\u00e0 […]<\/p>\n","protected":false},"author":18,"featured_media":8775,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-8774","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/8774","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=8774"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/8774\/revisions"}],"predecessor-version":[{"id":8893,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/8774\/revisions\/8893"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/8775"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=8774"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=8774"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=8774"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}