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

Keywords

GaN
Hydrogen generation
Sea water
Stability
Water splitting

UN SDGs

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

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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",

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journal = "International Journal of Hydrogen Energy",

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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 - http://www.scopus.com/inward/record.url?scp=84886730285&partnerID=8YFLogxK

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

Keywords

UN SDGs

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