甲醇-H_(2)能源体系的催化研究:进展与挑战

Catalysis in Methanol-H Energy System:Progresses and Challenges

甲醇是优异的储氢化合物,质量储氢密度高达12.5%。甲醇-氢能源体系着力于解决氢能应用中储存和输送的瓶颈问题,助力氢能的推广和应用。甲醇高效高选择性原位产氢是甲醇-氢能源体系中的重要环节。基于此,本文介绍了甲醇制氢催化研究的最新进展和面临的挑战。从甲醇储氢的优势、经济合理性出发,结合笔者自身研究情况,对甲醇储氢-原位制氢的方式、应用形式及重整产氢催化剂的结构和催化机理研究进行了梳理、总结。期望为甲醇-氢能源体系的催化研究提供参考,促进氢能走向实用。

Methanol is considered as an excellent hydrogen carrier(the gravimetric hydrogen density over 12.5%).The"methanol-hydrogen"energy system has been proposed in aiming at solving the H2 transportation and storage problem,one of the major bottleneck problems in hydrogen application,and promoting the utilization of hydrogen energy in large scale.How to generate hydrogen from methanol efficiently and selectively has been one of the vital components in the methanol-H2 system.In this review,the recent progresses and challenges in the catalysis for hydrogen production from methanol are introduced in detail.We discuss the advantages and economic rationality of storing and releasing hydrogen into/from methanol.The methods of catalytic hydrogen evolution from methanol along with the structure and mechanism of representative hydrogen production catalysts are also reviewed in details.We anticipate this perspective to provide references for the catalytic studies of methanol-H2 energy system and promote the development of suitable catalysts for the potential large scale H2 production in the near future.