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AuPd–MnO x /MOF–Graphene: An Efficient Catalyst for Hydrogen Production from Formic Acid at Room Temperature
Author(s) -
Yan JunMin,
Wang ZhiLi,
Gu Lin,
Li SiJia,
Wang HongLi,
Zheng WeiTao,
Jiang Qing
Publication year - 2015
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201500107
Subject(s) - graphene , materials science , catalysis , formic acid , nanocomposite , oxide , hydrogen , hydrogen production , chemical engineering , fuel cells , dispersion (optics) , metal , inorganic chemistry , nanotechnology , metallurgy , chemistry , organic chemistry , physics , optics , engineering
The safe and efficient storage and release of hydrogen are widely recognized as the main challenges for the establishment of a fuel‐cell‐based hydrogen economy. Formic acid (FA) has great potential as a safe and convenient source of hydrogen for fuel cells. Despite tremendous efforts, the development of heterogeneous catalysts with high activity and relatively low cost remains a major challenge. The synthesis of AuPd–MnO x nanocomposite immobilized on ZIF‐8–reduced‐graphene‐oxide (ZIF‐8–rGO) bi‐support by a wet‐chemical method is reported here. Interestingly, the resultant AuPd–MnO x /ZIF‐8–rGO shows excellent catalytic activity for the generation of hydrogen from FA, and the initial turnover frequency (TOF) reaches a highest value of 382.1 mol H 2 mol catalyst −1 h −1 without any additive at 298 K. This good performance of AuPd–MnO x /ZIF‐8–rGO results from the modified electronic structure of Pd in the AuPd–MnO x /ZIF‐8–rGO composite, the small size and high dispersion of the AuPd–MnO x nanocomposite, and also the strong metal‐support interaction between the AuPd–MnO x and ZIF‐8–rGO bi‐support.