Anion exchange membrane water electrolyzer with an ultra-low loading of Pt-decorated Ni electrocatalyst

被引：50

作者：

Ahn, Sang Hyun ^{[1
,2
]}

Yoo, Sung Jong ^{[1
]}

Kim, Hyoung-Juhn ^{[1
]}

Henkensmeier, Dirk ^{[1
]}

Nam, Suk Woo ^{[1
,4
]}

Kim, Soo-Kil ^{[3
]}

Jang, Jong Hyun ^{[1
,4
]}

机构：

[1] Korea Inst Sci & Technol, Fuel Cell Res Ctr, Seoul 136791, South Korea

[2] Chung Ang Univ, Sch Chem Engn & Mat Sci, Seoul 156756, South Korea

[3] Chung Ang Univ, Sch Integrat Engn, Seoul 156756, South Korea

[4] Korea Univ, Green Sch, Seoul 136713, South Korea

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2016年 / 180卷

基金：

新加坡国家研究基金会;

关键词：

Anion exchange membrane water electrolyzer; Hydrogen evolution reaction; Pt-decorated Ni electrocatalyst; Ultra-low Pt loading; HYDROGEN-PRODUCTION; OXYGEN EVOLUTION; FUEL-CELLS; ALKALINE; NICKEL; ENERGY; NANOPARTICLES; CATALYSTS; BEHAVIOR;

D O I：

10.1016/j.apcatb.2015.07.020

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

The particle-type electrodes with ultra-low electrocatalyst loading (<10 mu g cm(-2)) were developed as cathodes in the anion exchange membrane water electrolyzer (AEMWE). The Pt-decorated Ni electrocatalysts were prepared on the surface of carbon paper by Ni electrodeposition and subsequent displacement of Ni by Pt; the composition and morphology were controlled by varying HCl concentration. In half cell test, the increase of hydrogen evolution reaction (HER) activity by Pt decoration was confirmed for Pt-Ni/CP-2 that has Pt ratio of 39.4% (1.85 mu g(pt) cm(-2)). A membrane electrode assembly employing Pt-Ni/CP-2 as the HER electrode (total catalyst loading: 13.2 mu g cm(-2)) exhibited a current density of 250 mA cm(-2) at 1.9 V-cell (50 degrees C), which is comparable to the previous reports with much larger loading of 3.1 similar to 80 mg cm(-2). (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：674 / 679

页数：6

共 30 条

[1]

Development of a membrane electrode assembly for alkaline water electrolysis by direct electrodeposition of nickel on carbon papers [J].