Abstract
Highly dispersed AuPd alloy nanoparticles have been successfully immobilized on reduced graphene oxide (rGO) using a facile non-noble metal sacrificial method, which exhibit the highest activity at 323 K (turnover frequency, 4840 h(-1)) for hydrogen generation without CO impurity from the formic acid/sodium formate system.
Highlights
Dispersed AuPd alloy nanoparticles have been successfully immobilized on reduced graphene oxide using a facile nonnoble metal sacrificial method, which exhibit the highest activity at 323 K for hydrogen generation without CO impurity from the formic acid/sodium formate system
Formic acid (FA) can be decomposed in two ways: desirable dehydrogenation (HCOOH - H2 + CO2) and undesirable dehydration (HCOOH - H2O + CO), which produces CO impurities that are toxic to the fuel cell catalysts.[4]
The surface area of (Co3)EAu0.6Pd0.4/reduced graphene oxide (rGO) (321 m2 gÀ1) increases drastically, illustrating that the removal of cobalt by the acid etching has resulted in high porosity, which will favour the diffusion of reactants to metal NPs in catalysis
Summary
Dispersed AuPd alloy nanoparticles have been successfully immobilized on reduced graphene oxide (rGO) using a facile nonnoble metal sacrificial method, which exhibit the highest activity at 323 K (turnover frequency, 4840 hÀ1) for hydrogen generation without CO impurity from the formic acid/sodium formate system. We report a highly active AuPd alloy nanoparticle catalyst prepared using a non-noble metal sacrificial approach (NNMSA), which exhibits the highest turnover frequency (TOF) of 4840 hÀ1 at 323 K for hydrogen generation from the FA/sodium formate (SF) system.[7]
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