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

Ding Hsiun Tu; Hsin Chieh Wang; Po Sheng Wang; Wei Chao Cheng; Kuei Hsien Chen; Chih I. Wu; Surojit Chattopadhyay; Li Chyong Chen

doi:10.1016/j.ijhydene.2013.08.095

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

Ding Hsiun Tu
, Hsin Chieh Wang
, Po Sheng Wang
, Wei Chao Cheng
, Kuei Hsien Chen^*
, Chih I. Wu
, Surojit Chattopadhyay
, Li Chyong Chen

^*Corresponding author for this work

Institute of Biophotonics

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

A significant improvement in the stability of high-quality GaN films, for photoelectrochemical 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.

Original language	English
Pages (from-to)	14433-14439
Number of pages	7
Journal	International Journal of Hydrogen Energy
Volume	38
Issue number	34
DOIs	https://doi.org/10.1016/j.ijhydene.2013.08.095
State	Published - 13 Nov 2013

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

GaN
Hydrogen generation
Sea water
Stability
Water splitting

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10.1016/j.ijhydene.2013.08.095

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title = "Improved corrosion resistance of GaN electrodes in NaCl electrolyte for photoelectrochemical hydrogen generation",

abstract = "A significant improvement in the stability of high-quality GaN films, for photoelectrochemical 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.",

keywords = "GaN, Hydrogen generation, Sea water, Stability, Water splitting",

author = "Tu, \{Ding Hsiun\} and Wang, \{Hsin Chieh\} and Wang, \{Po Sheng\} and Cheng, \{Wei Chao\} and Chen, \{Kuei Hsien\} and Wu, \{Chih I.\} and Surojit Chattopadhyay and Chen, \{Li Chyong\}",

year = "2013",

month = nov,

day = "13",

doi = "10.1016/j.ijhydene.2013.08.095",

language = "English",

volume = "38",

pages = "14433--14439",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

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TY - JOUR

T1 - Improved corrosion resistance of GaN electrodes in NaCl electrolyte for photoelectrochemical hydrogen generation

AU - Tu, Ding Hsiun

AU - Wang, Hsin Chieh

AU - Wang, Po Sheng

AU - Cheng, Wei Chao

AU - Chen, Kuei Hsien

AU - Wu, Chih I.

AU - Chattopadhyay, Surojit

AU - Chen, Li Chyong

PY - 2013/11/13

Y1 - 2013/11/13

N2 - A significant improvement in the stability of high-quality GaN films, for photoelectrochemical 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.

AB - A significant improvement in the stability of high-quality GaN films, for photoelectrochemical 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.

KW - GaN

KW - Hydrogen generation

KW - Sea water

KW - Stability

KW - Water splitting

UR - https://www.scopus.com/pages/publications/84886730285

U2 - 10.1016/j.ijhydene.2013.08.095

DO - 10.1016/j.ijhydene.2013.08.095

M3 - Article

AN - SCOPUS:84886730285

SN - 0360-3199

VL - 38

SP - 14433

EP - 14439

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 34

ER -

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

Abstract

UN SDGs

Keywords

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