石墨烯
氧化物
催化作用
材料科学
无机化学
热重分析
化学工程
拉曼光谱
氧化石墨烯纸
化学
纳米技术
有机化学
冶金
光学
物理
工程类
作者
Tao Meng,Qianqian Xu,Yintao Li,Jianli Chang,Tie‐Zhen Ren,Zhong‐Yong Yuan
标识
DOI:10.1016/j.jiec.2015.09.017
摘要
The Ni/reduced graphene oxide catalysts are synthesized by an in situ hydrothermal method, using the graphene oxide as the support precursor. The textural and structural properties of the prepared Ni/reduced graphene oxide catalysts are characterized by X-ray diffraction, scanning and transmission electron microscopy, thermogravimetric analysis, H2-Temperature-programmed reduction, and electrochemical impedance spectroscopy. The catalytic performances of the prepared Ni/reduced graphene oxide catalysts for ammonia decomposition display the enhanced activity. The effect of reduced graphene oxide support and the influence of nickel content on catalytic activity are evaluated, and the Ni/reduced graphene oxide catalysts exhibit higher catalytic activity than reduced graphene oxide support and the pure NiO. The ammonia has a conversion of 81.9% and 27.4 mmol/min gcat H2 rate at 700 °C when the 10%-Ni/reduced graphene oxide catalyst used.
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