| 查看: 234 | 回复: 0 | |||
cj之恋新虫 (小有名气)
|
[求助]
Scalable enhancement of graphene oxide properties
|
|
Chemical functionalization of graphene is promising for a variety of next-generation technologies. Although graphene oxide (GO) is a versatile material in this direction, its use is limited by the production of metastable, chemically inhomogeneous and spatially disordered GO structures under current synthetic protocols, which results in poor optoelectronic properties. Here, we present a mild thermal annealing procedure, with no chemical treatments involved, to manipulate as-synthesized GO on a large scale to enhance sheet properties with the oxygen content preserved. Using experiments supported by atomistic calculations, we demonstrate that GO structures undergo a phase transformation into prominent oxidized and graphitic domains by temperature-driven oxygen diffusion. Consequently, as-synthesized GO that absorbs mainly in the ultraviolet region becomes strongly absorbing in the visible region, photoluminescence is blue shifted and electronic conductivity increases by up to four orders of magnitude. Our thermal processing method offers a suitable way to tune and enhance the properties of GO, which creates opportunities for various applications.请翻译这段文献，另求助翻译prominent gpaphitic domains |
回复此楼» 猜你喜欢
表哥与省会女结婚，父母去帮带孩子被省会女气回家生重病了
已经有9人回复
-
AI 太可怕了，写基金时，提出想法，直接生成的文字比自己想得深远，还有科学性
已经有10人回复
-
同年申请2项不同项目，第1个项目里不写第2个项目的信息，可以吗
已经有10人回复
-
天津大学招2026.09的博士生，欢迎大家推荐交流（博导是本人）
已经有10人回复
-
依托企业入选了国家启明计划青年人才。有无高校可以引进的。
已经有11人回复
-
依托企业入选了国家启明计划青年人才。有无高校可以引进的。
已经有11人回复