Response 212516970

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Introduction

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Yi-Sheng Chen

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The University of Sydney

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Australian Capital Territory
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Your comments

Survey questions

What do you think are the two or three most significant recent developments in hydrogen?
The development of hydrogen economy, specifically the safety concern due to the known effect of hydrogen embrittlement to materials, lies on a clear understanding of hydrogen-materials interactions, which however had been limited by the limited capability of current microscopes to detect hydrogen within materials whilst under a proper spatial resolution. Recently, microscopist has overcome this limit via the state-of-the-art microscope that allows hydrogen mapping within materials at atomic scale [1]. [1] Chen, Y.-S., et al., Science, 2017. 355(6330): p. 1196-1199.
What are the most important safety issues to consider in producing, handling and using hydrogen in Australia?
Metal pipelines for the transportation of pressurised hydrogen are generally affected by hydrogen embrittlement which accelerate the degradation of materials in many orders comparing to the case of hydrogen absence. Material failure could cause leakage of high-pressure hydrogen which is extremely dangerous when mixing with the oxygen in air. Therefore, special criteria and more rigorous standards for safety must be considered when selecting the pipeline materials carrying hydrogen.
What environmental and community impacts should we examine?
(No comment)
How can Australia influence and accelerate the development of a global market for hydrogen?
(No comment)
What are the top two or three factors required for a successful hydrogen export industry?
The thoughtfulness for a whole package of hydrogen as fuel, such as the infrastructural solutions for hydrogen transport pipeline
What are the top two or three opportunities for the use of clean hydrogen in Australia?
(No comment)
What are the main barriers to the use of hydrogen in Australia?
(No comment)
What are some examples where a strategic national approach could lower costs and shorten timelines for developing a clean hydrogen industry?
(No comment)
What are Australia’s key technology, regulatory and business strengths and weaknesses in the development of a clean hydrogen industry?
Australian researchers are capable to image hydrogen within materials, which should be able to use for revealing hydrogen effect within materials, the mechanism of hydrogen embrittlement and also the strategic approach against the embrittlement.
What workforce skills will need to be developed to support a growing clean hydrogen industry?
Metallurgical engineering and microscopy knowledge
What areas in hydrogen research, development and deployment need attention in Australia? Where are the gaps in our knowledge?
With the developed techniques, the gaps requiring a significant amount of experimental input to understand hydrogen-materials, the mechanism of hydrogen embrittlement as well as the proper solutions against it are now possible to be filled with a systematic supports from public resources.