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Synergic Catalysis of PdCu Alloy Nanoparticles within a Macroreticular Basic Resin for Hydrogen Production from Formic Acid
Author(s) -
Mori Kohsuke,
Tanaka Hiromasa,
Dojo Masahiro,
Yoshizawa Kazunari,
Yamashita Hiromi
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201501760
Subject(s) - dehydrogenation , catalysis , formic acid , alloy , hydrogen , nanoparticle , chemistry , leaching (pedology) , hydrogen production , chemical engineering , hydrogen storage , materials science , organic chemistry , nanotechnology , environmental science , soil science , engineering , soil water
Highly dispersed PdCu alloy nanoparticles have been successfully prepared within a macroreticular basic resin bearing N(CH 3 ) 2 functional groups. This previously unappreciated combination of alloy is first proven to be responsible for the efficient production of high‐purity H 2 from formic acid (HCOOH) dehydrogenation for chemical hydrogen storage. By the addition of Cu, the electronically promoted Pd sites show significantly higher catalytic activity as well as a better tolerance towards CO poisoning as compared to their monometallic Pd counterparts. Experimental and DFT calculation studies revealed not only the synergic alloying effect but also cooperative action by the N(CH 3 ) 2 groups within the resin play crucial roles in achieving exceptional catalytic performances. In addition to the advantages such as, facile preparation method, free of additives, recyclable without leaching of active component, and suppression of unfavorable CO formation less than 3 ppm, the present catalytic system is cost‐effective because of the superior catalytic activity compared with that of well‐established precious PdAg or PdAu catalysts. The present catalytic system is particularly desirable for an ideal hydrogen vector in terms of potential industrial application for fuel cells.