Nanopore‐Supported Metal Nanocatalysts for Efficient Hydrogen Generation from Liquid‐Phase Chemical Hydrogen Storage Materials

• Published in: Advanced materials (Weinheim) Vol. 32; no. 44; pp. e2001818 - n/a
• Main Authors: Sun, Qiming, Wang, Ning, Xu, Qiang, Yu, Jihong
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 01.11.2020
• Subjects: Ammonia; chemical hydrogen storage; Formic acid; heterogeneous catalysis; Hydrazines; Hydrogen; Hydrogen production; Hydrogen storage materials; Hydrogen-based energy; Materials science; metal nanoparticles; Metal-organic frameworks; nanocatalysts; nanoporous materials; Porosity; Silicon dioxide; Zeolites
• ISSN: 0935-9648; 1521-4095; 1521-4095
• DOI: 10.1002/adma.202001818

Hydrogen has emerged as an environmentally attractive fuel and a promising energy carrier for future applications to meet the ever‐increasing energy challenges. The safe and efficient storage and release of hydrogen remain a bottleneck for realizing the upcoming hydrogen economy. Hydrogen storage based on liquid‐phase chemical hydrogen storage materials is one of the most promising hydrogen storage techniques, which offers considerable potential for large‐scale practical applications for its excellent safety, great convenience, and high efficiency. Recently, nanopore‐supported metal nanocatalysts have stood out remarkably in boosting the field of liquid‐phase chemical hydrogen storage. Herein, the latest research progress in catalytic hydrogen production is summarized, from liquid‐phase chemical hydrogen storage materials, such as formic acid, ammonia borane, hydrous hydrazine, and sodium borohydride, by using metal nanocatalysts confined within diverse nanoporous materials, such as metal–organic frameworks, porous carbons, zeolites, mesoporous silica, and porous organic polymers. The state‐of‐the‐art synthetic strategies and advanced characterizations for these nanocatalysts, as well as their catalytic performances in hydrogen generation, are presented. The limitation of each hydrogen storage system and future challenges and opportunities on this subject are also discussed. References in related fields are provided, and more developments and applications to achieve hydrogen energy will be inspired. Recent research progress on nanopore‐supported metal nanocatalysts for H2 generation from various liquid‐phase chemical hydrogen storage materials is reviewed, mainly focusing on the presentation of state‐of‐the‐art synthetic strategies and advanced characterizations of these nanocatalysts and their catalytic performances in hydrogen generation. Some drawbacks of each hydrogen storage system and challenges and opportunities in future research are also highlighted.