scholarly journals Palladium–Ceria Catalysts with Enhanced Alkaline Hydrogen Oxidation Activity for Anion Exchange Membrane Fuel Cells

2019 ◽  
Vol 2 (7) ◽  
pp. 4999-5008 ◽  
Author(s):  
Marco Bellini ◽  
Maria V. Pagliaro ◽  
Anna Lenarda ◽  
Paolo Fornasiero ◽  
Marcello Marelli ◽  
...  
2020 ◽  
Vol MA2020-02 (33) ◽  
pp. 2110-2110
Author(s):  
Richard Andres Ortiz Godoy ◽  
Ramesh-Kumar Singh ◽  
Haiyan Tan ◽  
Dario R. Dekel ◽  
Jasna Jankovic

2020 ◽  
Vol 30 (38) ◽  
pp. 2002087
Author(s):  
Ramesh K. Singh ◽  
Elena S. Davydova ◽  
John Douglin ◽  
Andres O. Godoy ◽  
Haiyan Tan ◽  
...  

ACS Catalysis ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 6837-6845 ◽  
Author(s):  
Elena S. Davydova ◽  
Florian D. Speck ◽  
Michael T.Y. Paul ◽  
Dario R. Dekel ◽  
Serhiy Cherevko

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 582 ◽  
Author(s):  
Van Men Truong ◽  
Julian Richard Tolchard ◽  
Jørgen Svendby ◽  
Maidhily Manikandan ◽  
Hamish A. Miller ◽  
...  

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.


Nanoscale ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 4872-4881 ◽  
Author(s):  
Bowen Qin ◽  
Hongmei Yu ◽  
Jia Jia ◽  
Chi Jun ◽  
Xueqiang Gao ◽  
...  

Herein, a novel non-platinum IrNi@PdIr/C exhibits enhanced hydrogen oxidation activity and excellent stability under alkaline conditions.


2020 ◽  
Vol 4 (7) ◽  
pp. 3300-3307 ◽  
Author(s):  
Pietro G. Santori ◽  
Abhishek N. Mondal ◽  
Dario R. Dekel ◽  
Frédéric Jaouen

Anion-exchange membrane fuel cells show remarkable and rapid progress in performance, significantly increasing the relevance for research on electrocatalysis of the oxygen reduction reaction and hydrogen oxidation reaction for this technology.


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