Volume 48, Issue 4 e70005
Review Article

WO3 Gasochromic Materials for Hydrogen Leakage Detection: Synthesis, Properties, and Applications

Prof., Dr. Xuhai Pan

Corresponding Author

Prof., Dr. Xuhai Pan

College of Safety Science and Engineering, Nanjing Tech University, Puzhu South Road, Pukou District, Nanjing, 211816 China

Nanjing Vocational University of Industry Technology, Yangshan North Road, Qixia District, Nanjing, 210023 China

Petrochemical Industry Engineering Laboratory of Hydrogen Safety Technology, Puzhu South Road, Pukou District, Nanjing, 211816 China

E-mail: [email protected]

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Dali Wu

Dali Wu

College of Safety Science and Engineering, Nanjing Tech University, Puzhu South Road, Pukou District, Nanjing, 211816 China

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Qingwan Xie

Qingwan Xie

College of Safety Science and Engineering, Nanjing Tech University, Puzhu South Road, Pukou District, Nanjing, 211816 China

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Xiaowei Zang

Xiaowei Zang

College of Safety Science and Engineering, Nanjing Tech University, Puzhu South Road, Pukou District, Nanjing, 211816 China

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Chenggong Zhang

Chenggong Zhang

College of Safety Science and Engineering, Nanjing Tech University, Puzhu South Road, Pukou District, Nanjing, 211816 China

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Min Hua

Min Hua

College of Safety Science and Engineering, Nanjing Tech University, Puzhu South Road, Pukou District, Nanjing, 211816 China

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Juncheng Jiang

Juncheng Jiang

College of Safety Science and Engineering, Nanjing Tech University, Puzhu South Road, Pukou District, Nanjing, 211816 China

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First published: 18 March 2025

Abstract

During the production, transportation, storage, and use of hydrogen energy, there are risks of hydrogen leakage and secondary derivative accidents. Rapid, accurate, and in situ measurement of hydrogen leakage has important academic significance and broad application prospects. This review presents the primary physical and chemical properties of tungsten trioxide and discusses the physical and chemical mechanisms of its interaction with hydrogen. It examines the gasochromic (GC) characteristics and patterns of tungsten trioxide materials of varying sizes and compares the advantages and disadvantages of current synthesis methods. Additionally, strategies to enhance the GC properties of tungsten trioxide are analyzed. To realize the development of low-cost, high-efficiency, and high-reliability tungsten trioxide GC materials, the future challenges and development outlook of tungsten trioxide GC materials were put forward finally.

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