scholarly journals The critical importance of ionomers on the electrochemical activity of platinum and platinum-free catalysts for anion-exchange membrane fuel cells

2020 ◽  
Vol 4 (7) ◽  
pp. 3300-3307 ◽  
Author(s):  
Pietro G. Santori ◽  
Abhishek N. Mondal ◽  
Dario R. Dekel ◽  
Frédéric Jaouen
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
Oxidation Reaction ◽  
Hydrogen Oxidation ◽  
Reduction Reaction ◽  
Anion Exchange Membrane ◽  
Rapid Progress ◽  
Critical Importance ◽  
Hydrogen Oxidation Reaction ◽  
Exchange Membrane

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.

Ultrathin IrRu nanowire networks with high performance and durability for the hydrogen oxidation reaction in alkaline anion exchange membrane fuel cells

2018 ◽  
Vol 6 (41) ◽  
pp. 20374-20382 ◽  
Author(s):  
Bowen Qin ◽  
Hongmei Yu ◽  
Xueqiang Gao ◽  
Dewei Yao ◽  
Xinye Sun ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
Oxidation Reaction ◽  
High Performance ◽  
Hydrogen Oxidation ◽  
Anion Exchange Membrane ◽  
Hydrogen Oxidation Reaction ◽  
Highly Active ◽  
Nanowire Networks ◽  
Exchange Membrane

Developing highly active and stable HOR catalysts still remains a challenging task for alkaline anion exchange membrane fuel cells.

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

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 582 ◽  
Author(s):  
Van Men Truong ◽  
Julian Richard Tolchard ◽  
Jørgen Svendby ◽  
Maidhily Manikandan ◽  
Hamish A. Miller ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
Peak Power ◽  
Hydrogen Oxidation ◽  
Anion Exchange Membrane ◽  
Platinum Group Metals ◽  
Flame Spray ◽  
Hydrogen Oxidation Reaction ◽  
Platinum Group ◽  
Exchange Membrane

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.

A novel IrNi@PdIr/C core–shell electrocatalyst with enhanced activity and durability for the hydrogen oxidation reaction in alkaline anion exchange membrane fuel cells

Nanoscale ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 4872-4881 ◽  
Author(s):  
Bowen Qin ◽  
Hongmei Yu ◽  
Jia Jia ◽  
Chi Jun ◽  
Xueqiang Gao ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Oxidation Reaction ◽  
Hydrogen Oxidation ◽  
Anion Exchange Membrane ◽  
Core Shell ◽  
Hydrogen Oxidation Reaction ◽  
Oxidation Activity ◽  
Alkaline Conditions ◽  
Exchange Membrane ◽  
Excellent Stability

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

scholarly journals A novel Ir/CeO2–C nanoparticle electrocatalyst for the hydrogen oxidation reaction of alkaline anion exchange membrane fuel cells

RSC Advances ◽  
2017 ◽  
Vol 7 (50) ◽  
pp. 31574-31581 ◽  
Author(s):  
Bowen Qin ◽  
Hongmei Yu ◽  
Jun Chi ◽  
Jia Jia ◽  
Xueqiang Gao ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Oxidation Reaction ◽  
Hydrogen Oxidation ◽  
Anion Exchange Membrane ◽  
Hydrogen Oxidation Reaction ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Novel Catalyst ◽  
Exchange Membrane

A novel catalyst, 10% Ir/CeO2–C, shows better activity and durability for hydrogen oxidation reaction in base than that of 10% Ir/C. It would benefit from the oxophilic effect of ceria and the strong metal–support interaction between Ir and CeO2.

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