Generating hydrogen gas from methane with carbon captured as pure spheroidal nanomaterials |
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Authors: | Cornejo Andrew Zhang Weike Gao Lizhen Varsani Rahi R Saunders Martin Iyer K Swaminathan Raston Colin L Chua Hui Tong |
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Institution: | Centre for Strategic Nano-Fabrication, School of Mechanical and Chemical Engineering, The University of Western Australia, Crawley, WA-6009, Australia. |
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Abstract: | Energy production by using hydrogen gas as a feedstock is considered to be one of the keys to creating clean energy, with the proviso that the gas is generated in a sustainable way with no emissions. A simple, self-sustaining process generating hydrogen gas from methane using inexpensive stainless steel wire-mesh catalysts at elevated temperatures (800 °C) is reported. A theoretical analysis of the production of electricity by this process revealed peak chain energy efficiencies up to 21% (emission free) when using a percentage of the produced hydrogen (approximately 40% of purified yield) as the heat source. In addition, a practical method has been developed to purify the carbon byproduct, affording essentially pure highly graphitic spheroidal carbon for advanced materials applications. |
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Keywords: | carbon graphene hydrogen production methane cracking sustainable chemistry |
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