Interactions between Low-Loading Pd Nanoparticles and Surface N-Functionalities and Their Effects on HCOOH Oxidation

Zhiling Xin, Juan Wang, Xing Huang, Yuanying Yao, Lidong Shao
2015 Journal of the Electrochemical Society  
Palladium (Pd)-based anode catalysts show greater activities than Pt catalysts for HCOOH oxidation. However, because of the ease of Pd oxidation, the electrocatalytic stability of Pd is not satisfactory. In the present study, 2.4-wt% Pd supported on N-functionalized carbon nanotubes (Pd/NCNTs) with high dispersion areas and narrow size distributions exhibited superior HCOOH-oxidation performance in comparison to Pd on charcoal (commercial Pd/C, 30-wt% Pd) and Pd on HNO 3 -treated CNTs
more » ... . Surface characterization revealed that the interactions between Pd nanoparticles (PdNPs) and surface N-functionalities optimized local structures of the PdNPs and participated in the HCOOH oxidation by influencing the electronic properties of the PdNPs. ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 207.241.231.80 Downloaded on 2018-07-19 to IP ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 207.241.231.80 Downloaded on 2018-07-19 to IP
doi:10.1149/2.0691512jes fatcat:pxf4omfugbgi7pyjm5x6qj5vgu