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题名: Ruthenium/Graphene-like Layered Carbon Composite as an Efficient Hydrogen Evolution Reaction Electrocatalyst
作者: Chen, Zhe1, 2; Lu, Jinfeng2; Ai, Yuejie1; Ji, Yongfei3; Adschiri, Tadafumi2; Wan, Lijun4
关键词: graphene-like ; ruthenium ; supercritical fluid ; electrocatalysis ; hydrogen evolution reaction (HER)
刊名: ACS APPLIED MATERIALS & INTERFACES
发表日期: 2016-12-28
卷: 8, 期:51, 页:35132-35137
收录类别: SCI
英文摘要: Efficient water splitting through electrocatalysis has been studied extensively in modern energy devices, while the development of catalysts with activity and stability comparable to those of Pt is still a great challenge. In this work, we successfully developed a facile route to synthesize graphene-like layered carbon (GLC) from a layered silicate template. The obtained GLC has layered structure similar to that of the template and can be used as support to load ultrasmall Ru nanoparticles on it in supercritical water. The specific structure and surface properties of GLC enable Ru nanoparticles to disperse highly uniformly on it even at a large loading amount (62 wt %). When the novel Ru/GLC was used as catalyst on a glass carbon electrode for hydrogen evolution reaction (HER) in a 0.5 M H2SO4 solution, it exhibits an extremely low onset potential of only 3 mV and a small Tafel slope of 46 mV/decade. The outstanding performance proved that Ru/GLC is highly active catalyst for HER, comparable with transition-metal dichalcogenides or selenides. As the price of ruthenium is much lower than platinum, our study shows that Ru/GLC might be a promising candidate as an HER catalyst in future energy applications.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/36326
Appears in Collections:分子纳米结构与纳米技术实验室_期刊论文

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作者单位: 1.North China Elect Power Univ, Sch Environm & Chem Engn, Beijing 102206, Peoples R China
2.Tohoku Univ, Adv Inst Mat Res, WPI, Sendai, Miyagi 9808577, Japan
3.Royal Inst Technol, Sch Biotechnol, Dept Theoret Chem & Biol, SE-10691 Stockholm, Sweden
4.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
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