{"id":7981,"date":"2018-01-18T09:05:05","date_gmt":"2018-01-18T02:05:05","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=7981"},"modified":"2018-01-18T09:05:05","modified_gmt":"2018-01-18T02:05:05","slug":"tam-graphene-co-the-cung-hon-kim-cuong","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/tam-graphene-co-the-cung-hon-kim-cuong\/","title":{"rendered":"T\u1ea5m graphene c\u00f3 th\u1ec3 c\u1ee9ng h\u01a1n kim c\u01b0\u01a1ng"},"content":{"rendered":"<p><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/khoahocvacongnghevietnam.com.vn\/images\/stories\/thang-1-2018\/81-tam.jpg\" alt=\"81 tam\" \/><strong><br \/>\n<\/strong><\/p>\n<p>C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1ea1i Trung t\u00e2m Nghi\u00ean c\u1ee9u khoa h\u1ecdc ti\u00ean ti\u1ebfn thu\u1ed9c tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc New York \u0111\u00e3 ph\u00e2n l\u1edbp c\u00e1c t\u1ea5m graphene \u0111\u1ec3 t\u1ea1o ra v\u1eadt li\u1ec7u bi\u1ebfn \u0111\u1ed5i th\u00e0nh c\u1ea5u tr\u00fac gi\u1ed1ng kim c\u01b0\u01a1ng \u1edf d\u1ea1ng 3 chi\u1ec1u khi b\u1ecb l\u1ef1c t\u00e1c \u0111\u1ed9ng m\u1ea1nh. Thay \u0111\u1ed5i \u0111\u1ed9t ng\u1ed9t \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n c\u1ee7a c\u00e1c t\u1ea5m graphene khi b\u1ecb l\u00f5m c\u00f3 th\u1ec3 mang l\u1ea1i cho v\u1eadt li\u1ec7u m\u1ed9t s\u1ed1 t\u00ednh ch\u1ea5t \u0111i\u1ec7n t\u1eed m\u1edbi th\u00fa v\u1ecb.<\/p>\n<p>&nbsp;<\/p>\n<p>Elisa Riedo, tr\u01b0\u1edfng nh\u00f3m nghi\u00ean c\u1ee9u cho bi\u1ebft: \u0110\u00e2y l\u00e0 m\u00e0ng m\u1ecfng ch\u01b0a t\u1eebng c\u00f3 v\u1edbi \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 ch\u1eafc ch\u1eafn c\u1ee7a kim c\u01b0\u01a1ng. Tr\u01b0\u1edbc \u0111\u00e2y, khi ch\u00fang t\u00f4i th\u1eed nghi\u1ec7m than ch\u00ec hay m\u1ed9t l\u1edbp nguy\u00ean t\u1eed graphene duy nh\u1ea5t, ch\u00fang t\u00f4i s\u1ebd ph\u1ea3i t\u1ea1o \u00e1p l\u1ef1c v\u00e0 c\u1ea3m nh\u1eadn c\u00f3 s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a m\u1ed9t m\u00e0ng r\u1ea5t m\u1ecfng. Nh\u01b0ng khi m\u00e0ng than ch\u00ec d\u00e0y 2 l\u1edbp, ch\u00fang t\u00f4i nh\u1eadn th\u1ea5y v\u1eadt li\u1ec7u ch\u1ecbu \u00e1p l\u1ef1c tr\u1edf n\u00ean c\u1ee9ng v\u00e0 ch\u1eafc h\u01a1n kh\u1ed1i kim c\u01b0\u01a1ng.<\/p>\n<p>Nghi\u00ean c\u1ee9u n\u00e0y d\u1ef1a v\u00e0o c\u00e1c th\u00ed nghi\u1ec7m v\u00e0 m\u00f4 ph\u1ecfng cho th\u1ea5y v\u1ec1 m\u1eb7t l\u00fd thuy\u1ebft c\u00f3 th\u1ec3 t\u1ea1o ra diamene v\u00e0 thao t\u00e1c \u00e9p l\u00e0m cho li\u00ean k\u1ebft cacbon trong 2 t\u1ea5m graphene x\u1ebfp th\u00e0nh c\u00e1c c\u1ea5u h\u00ecnh h\u1eefu \u00edch. C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 s\u1eed d\u1ee5ng k\u00ednh hi\u1ec3n vi l\u1ef1c nguy\u00ean t\u1eed \u0111\u1ec3 l\u00e0m bi\u1ebfn d\u1ea1ng c\u00e1c t\u1ea5m graphene h\u00ecnh th\u00e0nh tr\u00ean c\u00e1c t\u1ea5m silicon cacbua \u0111\u1ec3 ki\u1ec3m tra s\u1ef1 thay \u0111\u1ed5i t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 t\u00ednh ch\u1ea5t \u0111i\u1ec7n c\u1ee7a ch\u00fang.<\/p>\n<p>Ngo\u00e0i ra, nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ee9ng minh vi\u1ec7c b\u1ed5 sung th\u00eam nhi\u1ec1u l\u1edbp kh\u00f4ng t\u1ea1o th\u00e0nh t\u1ea5m graphene ch\u1eafc h\u01a1n v\u00e0 ng\u01b0\u1ee3c l\u1ea1i, ch\u1ec9 ph\u00e1t huy hi\u1ec7u qu\u1ea3 khi graphene \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp ch\u1ec9 trong hai l\u1edbp.<\/p>\n<p>Nh\u00e0 h\u00f3a h\u1ecdc Angelo Bongiorno, \u0111\u1ed3ng t\u00e1c gi\u1ea3 nghi\u00ean c\u1ee9u cho bi\u1ebft: C\u1ea3 than ch\u00ec v\u00e0 kim c\u01b0\u01a1ng \u0111\u1ec1u \u0111\u01b0\u1ee3c l\u00e0m ho\u00e0n to\u00e0n t\u1eeb cacbon, nh\u01b0ng c\u00e1c nguy\u00ean t\u1eed \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo c\u00e1ch kh\u00e1c nhau trong m\u1ed7i v\u1eadt li\u1ec7u, mang l\u1ea1i cho ch\u00fang c\u00e1c t\u00ednh ch\u1ea5t ri\u00eang bi\u1ec7t nh\u01b0 \u0111\u1ed9 c\u1ee9ng, t\u00ednh linh ho\u1ea1t v\u00e0 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n. K\u1ef9 thu\u1eadt m\u1edbi cho ph\u00e9p ch\u00fang t\u00f4i \u0111i\u1ec1u ch\u1ec9nh than ch\u00ec \u0111\u1ec3 n\u00f3 c\u00f3 \u0111\u01b0\u1ee3c nh\u1eefng t\u00ednh ch\u1ea5t c\u00f3 l\u1ee3i c\u1ee7a kim c\u01b0\u01a1ng trong \u0111i\u1ec1u ki\u1ec7n c\u1ee5 th\u1ec3.<\/p>\n<p>Do c\u00e1ch s\u1eed d\u1ee5ng \u0111a d\u1ea1ng, graphene s\u1ebd \u0111\u00f3ng m\u1ed9t vai tr\u00f2 ng\u00e0y c\u00e0ng l\u1edbn \u0111\u1ed1i v\u1edbi c\u00f4ng ngh\u1ec7 th\u1ebf h\u1ec7 m\u1edbi c\u1ea3 v\u1ec1 c\u1ea5u tr\u00fac v\u00e0 \u0111i\u1ec7n t\u1eed. Nghi\u00ean c\u1ee9u \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean t\u1ea1p ch\u00ed Nature Nanotechnology.<\/p>\n<p style=\"text-align: right;\"><em>\u00a0(NASATI)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1ea1i Trung t\u00e2m Nghi\u00ean c\u1ee9u khoa h\u1ecdc ti\u00ean ti\u1ebfn thu\u1ed9c tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc New York \u0111\u00e3 ph\u00e2n l\u1edbp c\u00e1c t\u1ea5m graphene \u0111\u1ec3 t\u1ea1o ra v\u1eadt li\u1ec7u bi\u1ebfn \u0111\u1ed5i th\u00e0nh c\u1ea5u tr\u00fac gi\u1ed1ng kim c\u01b0\u01a1ng \u1edf d\u1ea1ng 3 chi\u1ec1u khi b\u1ecb l\u1ef1c t\u00e1c \u0111\u1ed9ng m\u1ea1nh. Thay \u0111\u1ed5i \u0111\u1ed9t ng\u1ed9t \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":7982,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-7981","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\/7981","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=7981"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7981\/revisions"}],"predecessor-version":[{"id":7983,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7981\/revisions\/7983"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/7982"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=7981"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=7981"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=7981"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}