Recent research and prospect of liquid organic hydrogen carries technology
As the vision of building a green hydrogen society,the demand for hydrogen energy will grow massively on a large scale as well,but the storage and transportation will also be the bottleneck that restricts the scale of the industrial development.Liquid organic hydrogen carries(LOHCs)have advantages over conventional high-pressure hydrogen storage methods in terms of low cost and safety for the large-scale storage and long-distance transportation of hydrogen energy.However,this technology is still at the early stage of development,and the related reports are limited.This paper reviews the main liquid organic hydrogen materials,aromatic such as aromatic hydrocarbons and aza-aromatic hydrocarbons,and analyses their hydrogen storage properties,advantages,problems and development status.Furthermore,various metal catalysts involved in hydrogenation and dehydrogenation processes are described.Finally,based on the current research,the prospects for liquid organic hydrogen storage technology are presented and the feasibility of liquid organic hydrogen storage technology in various fields and its high economic values are pointed out.However,for large-scale application,it's necessary to select the optimal liquid organic hydrogen materials,develop new catalysts with high selectivity,high catalytic activity and low cost,and further optimize hydrogenation and dehydrogenation technologies.
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