Platinum and Platinum Group Metal-Free Catalysts for Anion Exchange Membrane Fuel Cells

Energies

Alejandro Oyarce Barnett¹  Maidhily Manikandan²  Jørgen Svendby²  Svein Sunde²  Van Men Truong³  Hsiharng Yang³  Hamish A. Miller⁴  Julian Richard Tolchard⁵  Dario R. Dekel⁶ 

[1] Stephan Grand Technion Energy Program (GTEP), Technion, Israel Institute of Technology, Haifa 3200003, Israel;Department of Materials Science and Engineering, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway;Graduate Institute of Precision Engineering, National Chung Hsing University, Taichung 40227, Taiwan;Istituto di Chimica dei Composti Organometallici (CNR-ICCOM), via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy;Sustainable Energy Department, SINTEF Industri, Postboks 4760 Torgarden, 7465 Trondheim, Norway;;The Wolfson Department of Chemical Engineering and the Nancy &

关键词: non-pt electrocatalyst;    non-pgm electrocatalyst;    hydrogen oxidation reaction;    oxygen reduction reaction;    alkaline fuel cell;   

DOI  :  10.3390/en13030582

来源: DOAJ

【 摘 要 】

The development of active hydrogen oxidation reaction (HOR) and oxygen reduction reaction (ORR) catalysts for use in anion exchange membrane fuel cells (AEMFCs), which are free from platinum group metals (PGMs), is expected to bring this technology one step closer to commercial applications. This paper reports our recent progress developing HOR Pt-free and PGM-free catalysts (Pd/CeO₂ and NiCo/C, respectively), and ORR PGM-free Co₃O₄ for AEMFCs. The catalysts were prepared by different synthesis techniques and characterized by both physical-chemical and electrochemical methods. A hydrothermally synthesized Co₃O₄ + C composite ORR catalyst used in combination with Pt/C as HOR catalyst shows good H₂/O₂ AEMFC performance (peak power density of ~388 mW cm⁻²), while the same catalyst coupled with our flame spray pyrolysis synthesised Pd/CeO₂ anode catalysts reaches peak power densities of ~309 mW cm⁻². Changing the anode to nanostructured NiCo/C catalyst, the performance is significantly reduced. This study confirms previous conclusions, that is indeed possible to develop high performing AEMFCs free from Pt; however, the challenge to achieve completely PGM-free AEMFCs still remains.

【 授权许可】

Unknown