Free-Standing Two-Dimensional Ru Nanosheets with High Activity toward Water Splitting

被引：298

作者：

Kong, Xiangkai ^{[1
,2
]}

Xu, Kun ^{[3
]}

Zhang, Changlin ^{[1
]}

Dai, Jun ^{[4
]}

Oliaee, Shirin Norooz ^{[1
]}

Li, Lingyan ^{[1
]}

Zeng, Xiaocheng ^{[4
]}

Wu, Changzheng ^{[3
]}

Peng, Zhenmeng ^{[1
]}

机构：

[1] Univ Akron, Dept Chem & Biomol Engn, Akron, OH 44325 USA

[2] Huaibei Normal Univ, Sch Phys & Elect Informat, Huaibei 235000, Anhui, Peoples R China

[3] Univ Sci & Technol China, Collaborat Innovat Ctr Chem Energy Mat, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China

[4] Univ Nebraska, Dept Chem, Lincoln, NE 68588 USA

来源：

ACS CATALYSIS | 2016年 / 6卷 / 03期

基金：

中国国家自然科学基金;

关键词：

two-dimensional; ruthenium; water splitting; hydrogen evolution; oxygen evolution; HYDROGEN; EVOLUTION; OXYGEN; ELECTROCATALYSTS; ELECTROOXIDATION; NANOCRYSTALS; REDUCTION; CATALYST; SURFACE; DESIGN;

D O I：

10.1021/acscatal.5b02730

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The preparation of ultrathin ruthenium metal nanosheets is important because these materials have unique properties originated from the unique two-dimensional (2D) structure, and yet, it remains a synthetic challenge. Herein, we report the synthesis of free-standing 2D Ru nanosheets using a facile solvothermal method, in which Ru(III) is reduced via self-decomposition of the metal precursor and grows into ultrathin nanosheets with the aid of isopropanol and urea. The 2D Ru nanosheets and their 2D oxide derivative exhibit excellent hydrogen evolution reaction and oxygen evolution reaction activities, respectively. They show much enhanced properties compared with their Ru powder counterparts and the commercial Pt in electrolytic water splitting.

引用

页码：1487 / 1492

页数：6

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