Improved corrosion resistance of GaN electrodes in NaCl electrolyte for photoelectrochemical hydrogen generation

被引：15

作者：

Tu, Ding-Hsiun ^{[1
]}

Wang, Hsin-Chieh ^{[2
]}

Wang, Po-Sheng ^{[1
]}

Cheng, Wei-Chao ^{[3
]}

Chen, Kuei-Hsien ^{[2
]}

Wu, Chih-I. ^{[1
]}

Chattopadhyay, Surojit ^{[4
]}

Chen, Li-Chyong ^{[5
]}

机构：

[1] Natl Taiwan Univ, Grad Inst Photon & Optoelect, Taipei 106, Taiwan

[2] Acad Sinica, Inst Atom & Mol Sci, Taipei, Taiwan

[3] Natl Tsing Hua Univ, Dept Engn & Syst Sci, Hsinchu, Taiwan

[4] Natl Yang Ming Univ, Inst Biophoton, Taipei 112, Taiwan

[5] Natl Taiwan Univ, Ctr Condensed Matter Sci, Taipei 10764, Taiwan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2013年 / 38卷 / 34期

关键词：

GaN; Hydrogen generation; Water splitting; Stability; Sea water; N-TYPE GAN; GALLIUM NITRIDE; WATER; OXIDE; GROWTH; PHOTOCATHODE; PHOTOANODES; OXIDATION;

D O I：

10.1016/j.ijhydene.2013.08.095

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：

A significant improvement in the stability of high-quality GaN films, for photoelectro chemical hydrogen generation, has been demonstrated using near neutral NaCl(aq) electrolyte instead of conventional acidic HCl(aq). The experimental results conclude that the as-grown surface oxide passivates the surface from corrosion and, therefore, leads to a higher photocurrent. Our result paves the way for the future development of stable hydrogen generation with abundant sea water and high-efficiency III-V compound semiconductors. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：14433 / 14439

页数：7

共 30 条

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