{"id":111464,"date":"2021-09-22T11:47:05","date_gmt":"2021-09-22T03:47:05","guid":{"rendered":"https:\/\/www.alpapowder.com\/111464\/"},"modified":"2021-09-22T11:47:05","modified_gmt":"2021-09-22T03:47:05","slug":"ung-dung-cua-graphene-sau-khi-phan-loai-luong-khong-khi-trong-nhieu-linh-vuc","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/111464\/","title":{"rendered":"\u1ee8ng d\u1ee5ng c\u1ee7a graphene sau khi ph\u00e2n lo\u1ea1i lu\u1ed3ng kh\u00f4ng kh\u00ed trong nhi\u1ec1u l\u0129nh v\u1ef1c"},"content":{"rendered":"

Graphene l\u00e0 m\u1ed9t s\u1ea3n ph\u1ea9m hot hi\u1ec7n nay. Graphene l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u mang t\u00ednh c\u00e1ch m\u1ea1ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3 ti\u1ebfp t\u1ee5c \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng khi c\u00e1c nghi\u00ean c\u1ee9u li\u00ean quan \u0111\u01b0\u1ee3c \u0111\u00e0o s\u00e2u h\u01a1n. C\u00e1c \u0111\u1eb7c t\u00ednh t\u1ed1t c\u1ee7a graphene c\u0169ng x\u00e1c \u0111\u1ecbnh r\u1eb1ng n\u00f3 c\u00f3 gi\u00e1 tr\u1ecb th\u1ecb tr\u01b0\u1eddng phi th\u01b0\u1eddng.<\/p>\n

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1. C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a graphen<\/strong><\/p>\n

Graphene c\u00f3 \u0111\u1ed9 b\u1ec1n t\u1ed1t, t\u00ednh linh ho\u1ea1t, t\u00ednh d\u1eabn \u0111i\u1ec7n, d\u1eabn nhi\u1ec7t v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh kh\u00e1c. L\u00e0 v\u1eadt li\u1ec7u c\u00f3 t\u00ednh d\u1eabn nhi\u1ec7t cao nh\u1ea5t t\u1eeb \u200b\u200btr\u01b0\u1edbc \u0111\u1ebfn nay v\u00e0 d\u1eabn nhi\u1ec7t r\u1ea5t t\u1ed1t n\u00ean \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong ng\u00e0nh s\u01b0\u1edfi m\u1edbi.<\/p>\n

Gi\u1ed1ng nh\u01b0 phim s\u01b0\u1edfi \u1ea5m th\u00f4ng th\u01b0\u1eddng, graphene c\u1ea7n \u0111\u01b0\u1ee3c cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng \u0111\u1ec3 t\u1ea1o ra nhi\u1ec7t. Khi c\u00e1c \u0111i\u1ec7n c\u1ef1c \u1edf c\u1ea3 hai \u0111\u1ea7u c\u1ee7a m\u00e0ng l\u00e0m n\u00f3ng graphene \u0111\u01b0\u1ee3c cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng, c\u00e1c ph\u00e2n t\u1eed cacbon trong m\u00e0ng \u0111\u1ed1t n\u00f3ng t\u1ea1o ra phonon, ion v\u00e0 electron trong \u0111i\u1ec7n tr\u1edf, v\u00e0 c\u00e1c nh\u00f3m ph\u00e2n t\u1eed cacbon \u0111\u01b0\u1ee3c t\u1ea1o ra t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau. Ma s\u00e1t v\u00e0 va ch\u1ea1m (c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 chuy\u1ec3n \u0111\u1ed9ng Brown) t\u1ea1o ra n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t, v\u00e0 n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t \u0111\u01b0\u1ee3c b\u1ee9c x\u1ea1 \u0111\u1ed3ng \u0111\u1ec1u theo c\u00e1ch ph\u1eb3ng b\u1eb1ng c\u00e1ch \u0111i\u1ec1u khi\u1ec3n c\u00e1c tia h\u1ed3ng ngo\u1ea1i xa.<\/p>\n

Sau khi graphene \u0111\u01b0\u1ee3c cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng, t\u1ed5ng t\u1ef7 l\u1ec7 chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t \u0111i\u1ec7n hi\u1ec7u d\u1ee5ng l\u00e0 h\u01a1n 99%, v\u00e0 ch\u1ea5t si\u00eau d\u1eabn \u0111\u1eb7c bi\u1ec7t \u0111\u01b0\u1ee3c th\u00eam v\u00e0o \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a hi\u1ec7u su\u1ea5t gia nhi\u1ec7t. Tuy nhi\u00ean, n\u00f3 kh\u00e1c v\u1edbi phim s\u01b0\u1edfi d\u00e2y kim lo\u1ea1i th\u00f4ng th\u01b0\u1eddng \u1edf ch\u1ed7 l\u00e0m n\u00f3ng \u1ed5n \u0111\u1ecbnh v\u00e0 an to\u00e0n, tia h\u1ed3ng ngo\u1ea1i ph\u00e1t ra \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201c\u00e1nh s\u00e1ng c\u1ee7a s\u1ef1 s\u1ed1ng\u201d.<\/p>\n

2. Nh\u1eefng kh\u00eda c\u1ea1nh n\u00e0o c\u1ee7a graphene \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng sau khi \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i b\u1edfi b\u1ed9 ph\u00e2n lo\u1ea1i lu\u1ed3ng kh\u00f4ng kh\u00ed<\/strong><\/p>\n

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