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Highly Efficient Hydrogen Storage System Based on Ammonium Bicarbonate/Formate Redox Equilibrium over Palladium Nanocatalysts
Author(s) -
Su Ji,
Yang Lisha,
Lu Mi,
Lin Hongfei
Publication year - 2015
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201403251
Subject(s) - ammonium bicarbonate , formate , dehydrogenation , hydrogen storage , chemistry , ammonium formate , catalysis , inorganic chemistry , nanomaterial based catalyst , palladium , hydrogen , bicarbonate , redox , organic chemistry , formic acid , raw material
A highly efficient, reversible hydrogen storage–evolution process has been developed based on the ammonium bicarbonate/formate redox equilibrium over the same carbon‐supported palladium nanocatalyst. This heterogeneously catalyzed hydrogen storage system is comparable to the counterpart homogeneous systems and has shown fast reaction kinetics of both the hydrogenation of ammonium bicarbonate and the dehydrogenation of ammonium formate under mild operating conditions. By adjusting temperature and pressure, the extent of hydrogen storage and evolution can be well controlled in the same catalytic system. Moreover, the hydrogen storage system based on aqueous‐phase ammonium formate is advantageous owing to its high volumetric energy density.