In situ growth of graphdiyne based heterostructure: Toward efficient overall water splitting

被引：79

作者：

Fang, Yan ^{[1
]}

Xue, Yurui ^{[1
]}

Hui, Lan ^{[1
]}

Yu, Huidi ^{[1
]}

Liu, Yuxin ^{[1
]}

Xing, Chengyu ^{[1
]}

Lu, Fushen ^{[2
,3
]}

He, Feng ^{[1
]}

Liu, Huibiao ^{[1
]}

Li, Yuliang ^{[1
,4
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China

[2] Shantou Univ, Dept Chem, Shantou 515063, Guangdong, Peoples R China

[3] Shantou Univ, Guangdong Key Lab Preparat & Applicat Ordered Str, Shantou 515063, Guangdong, Peoples R China

[4] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

NANO ENERGY | 2019年 / 59卷

关键词：

Carbon material; Graphdiyne; Hydrogen evolution reaction; Oxygen evolution reaction; Overall water splitting; EVOLUTION ELECTROCATALYSIS; HYDROGEN EVOLUTION; ENERGY;

D O I：

10.1016/j.nanoen.2019.03.022

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 controlled synthesis of graphdiyne-wrapped cobalt nitride nanosheets and their direct application as a bi-functional electrocatalyst towards electrical splitting water was reported for the first time. Because of its unique electronic and chemical structure, the electrocatalyst has high activity and stability in electrocatalysis process of 1.0 M KOH. The catalyst embedded by graphdiyne showed excellent catalytic performance of hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) with low overpotentials of 70 mV and 260 mV, respectively, at 10 mA cm(-2), which was obviously superior to that of the commercial Pt/C and RuO2, respectively. As both the anode and cathode in a two-electrode alkaline electrolyzer, 10 mA cm(-2) can be obtained at an ultralow cell voltage of 1.48 V which is much smaller than that of Pt/C-RuO2 couple.

引用

页码：591 / 597

页数：7

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