scholarly journals Nickel–copper supported on a carbon black hydrogen oxidation catalyst integrated into an anion-exchange membrane fuel cell

2018 ◽  
Vol 2 (10) ◽  
pp. 2268-2275 ◽  
Author(s):  
Aaron Roy ◽  
Morteza R. Talarposhti ◽  
Stanley J. Normile ◽  
Iryna V. Zenyuk ◽  
Vincent De Andrade ◽  
...  
Keyword(s):  
Oxidation Reaction ◽  
Hydrogen Oxidation ◽  
Platinum Group Metal ◽  
Anion Exchange Membrane ◽  
Oxidation Catalyst ◽  
Alloy Nanoparticles ◽  
Hydrogen Oxidation Reaction ◽  
Nickel Copper ◽  
Alkaline Membrane ◽  
Exchange Membrane

This work introduces the first practical platinum group metal-free (PGM-free) electrocatalyst for the hydrogen oxidation reaction (HOR) in alkaline membrane fuel cells (AMFC), based on nickel-rich Ni95Cu5-alloy nanoparticles.

scholarly journals An Efficient Nickel Hydrogen Oxidation Catalyst for Hydroxide Exchange Membrane Fuel Cells

2021 ◽  
Author(s):  
Weiyan Ni ◽  
Teng Wang ◽  
Florent Heroguel ◽  
Anna Krammer ◽  
seunghwa lee ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Hydrogen Oxidation ◽  
Platinum Group Metal ◽  
Carbon Support ◽  
Oxidation Catalyst ◽  
Electronic Interaction ◽  
Ni Nanoparticles ◽  
Hydrogen Binding ◽  
Hydrogen Oxidation Reaction ◽  
Exchange Membrane

The hydroxide exchange membrane fuel cell (HEMFC) is a promising energy conversion technology, but it is limited by the need of platinum-group-metal (PGM) electrocatalysts, especially for the hydrogen oxidation reaction (HOR). Here we report a Ni-based HOR catalyst that exhibits an electrochemical surface area-normalized exchange current density of 70 μA/cm2, the highest among PGM-free catalysts. The catalyst comprises of Ni nanoparticles embedded in a nitrogen-doped carbon support. According to X-ray and ultraviolet photoelectron spectroscopy as well as H2 chemisorption, the electronic interaction between the Ni nanoparticles and its support leads to an optimal hydrogen binding energy, which is the likely origin of its high activity. PGM-free HEMFCs employing this Ni HOR catalyst give a peak power density of 450 mW/cm2, up to 6 times higher than previous best-performing analogous. This work demonstrates the feasibility of efficient PGM-free HEMFCs.<br>

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 An Efficient Nickel Hydrogen Oxidation Catalyst for Hydroxide Exchange Membrane Fuel Cells

2021 ◽  
Author(s):  
Weiyan Ni ◽  
Teng Wang ◽  
Florent Heroguel ◽  
Anna Krammer ◽  
seunghwa lee ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Hydrogen Oxidation ◽  
Platinum Group Metal ◽  
Carbon Support ◽  
Oxidation Catalyst ◽  
Electronic Interaction ◽  
Ni Nanoparticles ◽  
Hydrogen Binding ◽  
Hydrogen Oxidation Reaction ◽  
Exchange Membrane

The hydroxide exchange membrane fuel cell (HEMFC) is a promising energy conversion technology, but it is limited by the need of platinum-group-metal (PGM) electrocatalysts, especially for the hydrogen oxidation reaction (HOR). Here we report a Ni-based HOR catalyst that exhibits an electrochemical surface area-normalized exchange current density of 70 μA/cm2, the highest among PGM-free catalysts. The catalyst comprises of Ni nanoparticles embedded in a nitrogen-doped carbon support. According to X-ray and ultraviolet photoelectron spectroscopy as well as H2 chemisorption, the electronic interaction between the Ni nanoparticles and its support leads to an optimal hydrogen binding energy, which is the likely origin of its high activity. PGM-free HEMFCs employing this Ni HOR catalyst give a peak power density of 450 mW/cm2, up to 6 times higher than previous best-performing analogous. This work demonstrates the feasibility of efficient PGM-free HEMFCs.<br>

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.

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.

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