化学气相渗积压力对渗积速率和热解炭组织结构的影响

张云峰; 罗瑞盈

doi:10.1016/S1872-5805(12)60004-3

化学气相渗积压力对渗积速率和热解炭组织结构的影响

doi: 10.1016/S1872-5805(12)60004-3

1. 武汉科技大学耐火材料与高温陶瓷国家重点实验室培育基,湖北武汉 430081;

2.
九江学院化学化工学院,江西九江 332005

基金项目: 国家自然科学基金(50872098)，湖北省自然科学基金(2009CDA050)

详细信息

通讯作者:
罗瑞盈

中图分类号: TB 333
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出版历程
- 录用日期: 2012-07-20
- 刊出日期: 2012-02-20

Synthesis of Ni/graphene sheets by an electroless Ni-plating method

School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China

Funds: National Natural Science Foundation of China (50872098) and Natural Science Foundation of Hubei Province, China (2009CDA050)

More Information

Corresponding author: LUO Rui-ying

摘要

摘要: 采用化学镀镍方法，以氧化石墨烯薄片为基体、NaBH₄为还原剂，在NiSO₄溶液中制备了Ni/石墨烯。通过X射线衍射、场发射扫描电镜和透射电镜对样品进行了表征，结果表明：沉积在石墨烯片表面Ni的的质量分数高达32.9%时，仍具有高度的分散性；相互堆积Ni/石墨烯片形成了介孔和大孔。氮气等温吸附表明：其介孔和大孔为狭缝型结构，孔的Brunauer-Emmett-Teller比表面积为91m²/g；吸附支的Barret-Joyner-Halenda平均孔径为3.83nm，孔容为0.28cm³/g。
- 化学镀 /
- 石墨烯 /
- 氧化石墨烯 /
- 介孔 /
- 大孔
Abstract: Ni/graphene sheets were synthesized from graphene oxide sheets using electroless Ni-plating in a NiSO₄ solution, with NaBH₄ as a reducing agent. The samples were characterized by X-ray diffraction, scanning and transmission electron microscopy. Ni deposited on the surface of the reduced graphene oxide sheets had a high dispersion without aggregation, although the amount of Ni was as high as 32.9% by mass., The stacking of Ni/graphene sheets resulted in the formation of meso- and macropores. Nitrogen adsorption showed that the meso- and macropores had a slit shape and that the Brunauer-Emmett-Teller specific surface area reached 91m²/g. The average pore size calculated by the Barret-Joyner-Halenda method from desorption studies was 3.83nm, with a pore volume of 0.28cm³/g.
- Electroless plating /
- Graphene /
- Graphene oxide /
- Mesopore /
- Macropore