Development of Pd-Ni Nanoparticles Attached onto Carbon Black Supports as Anode Catalysts for Anion Exchange Membrane Fuel Cells
2 years ago
Authors:
Trương Văn Mến,Dương Ngọc Bích,Đặng Quang Khoa,HsiharngYang
Publication date:
02 / 08 / 2020
Name of Publishers:
Journal of Technical Education Science, Ho Chi Minh City University of Technology and Education
Abstract:
Anion exchange membrane fuel cells (AEMFCs) have recently received significant attention due to their potential to use non-Pt catalysts. In the current work, we developed bimetallic Pd-Ni nanoparticles supporting Vulcan XC72R carbon black (Pd-Ni / C) using a wet impregnation method applied to AEMFC anode electrodes. ThePd-Ni/C electrocatalysts containing a similar metal content (40% by weight) and various Pd:Ni weight% ratios were synthesized and evaluated. X-ray diffraction (XRD) spectroscopy confirmed the successful preparation of Pd-Ni / C electrocatalyst, and the Pd crystallite size was 2.5 nm. Further, the surface electronic states of Pd and Ni were measured by X-ray photoelectron spectroscopy (XPS), and it was found that the coexistence of Pd-Ni was observed by inhibition of Pd oxidation in the catalyst sample. The H 2 / O 2 AEMFC using a bimetallic Pd-Ni / C anode catalyst and a commercial Pt / C cathode catalyst showed a peak power density of about 300 mW cm -2 and a Pd : Ni mass ratio of 50:50. This result is consistent with cyclic voltammetry measurements in which the Pd-Ni/C electrocatalyst having a Pd:Ni weight ratio of 50:50 exhibits the largest electrochemically active surface area (EASA).