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[求助]
石墨烯，石墨烯氧化物，氧化石墨烯，电化学还原石墨烯氧化物 晕了！ 已有1人参与
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石墨烯，石墨烯氧化物，氧化石墨烯，电化学还原石墨烯氧化物 各位搞纳米材料的大侠们，小女子已经被这几个石墨烯的东东搞晕掉了，求教各位给说说这几个东东的区别，多谢了！ |
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9楼2014-05-29 12:46:16
wulishi8
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2楼2012-12-14 20:22:56
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3楼2012-12-14 20:36:33
dengjfp
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【答案】应助回帖
感谢参与，应助指数 +1
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建议看见这篇综述文献： Graphenes in chemical sensors and biosensors Graphene Exactly one layer of a polycyclic aromatic hydrocarbon network, with all carbon atoms hexagonally arranged in a planar condensed ring system. It has a metallic character and consists solely of carbon and hydrogen. Graphene oxide Exactly one layer of a polycyclic hydrocarbon network, with all carbon atoms hexagonally arranged in a planar condensed ring system. It has various oxygen groups and is partially aromatic. It possesses a band gap greater than 1.5 eV. The band gap depends on its oxidation level. The C:O ratio is between 2 and 3. Reduced graphene oxide (rGO) Exactly one layer of a polycyclic hydrocarbon network, with all carbon atoms hexagonally arranged in a planar condensed ring system. It has an oxygen fraction around or below 10%. It is mostly aromatic and resembles graphene in terms of electrical, thermal and mechanical properties. Graphite “An allotropic form of the element carbon consisting of layers of hexagonally arranged carbon atoms in a planar condensed ring system. The layers are stacked parallel to each other in a three-dimensional crystalline long-range order. There are two allotropic forms with different stacking arrangements, hexagonal and rhombohedral. The chemical bonds within the layers are covalent with sp2 hybridization and with a C-C distance of 141.7 pm. The weak bonds between the layers are metallic with a strength comparable to van der Waals bonding only.” Graphite oxide An heterogeneous material prepared by the oxidation of graphite. It can be described as an assembly of many layers of graphene oxide. We also note an exaggerated use of acronyms in the literature all referring to the same materials, with examples being CRGO, GO, RGO, GR, G, GNS, EG, GNP, CCG, GE, GP, ERGO, GF, EGO, GS, GN, TRGO, CMG, FG, ERGNO, CRGNO, and the like. This allows for a high risk of confusion (e.g. GO may stand for graphite oxide or graphene oxide). In our opinion the words “graphite” and “graphene” are short enough and do not require an acronym. |
4楼2012-12-15 14:49:00
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