August 9, 2024Meeting abstracts/Meeting abstracts (Electrochemical Society. CD-ROM)

Ni-Derived NiO Nanosphere Electrocatalyst for Hydrogen Evolution Reaction: The Effect of Synthesis Variables on Activity and Durability

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Authors

DSDoha M. SayedLos Alamos National Laboratory LOLuigi OsmieriLos Alamos National Laboratory HYHaoran YuBeijing University of Posts and Telecommunications

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Implication

Experimental study demonstrates reduced overpotential and enhanced durability for nickel oxide nanospheres in alkaline electrolyte, highlighting potential for platinum-free water electrolyzers.

Key Points

Carbon-supported nickel-derived nickel oxide nanospheres enhance the alkaline hydrogen evolution reaction, outperforming standard commercial catalysts.
An overpotential of ca. 130 mV achieves 10 mA cm−2 current density in alkaline electrolyte, exceeding the activity of commercial nickel electrocatalysts.
Optimization through a sol-gel method with thermal reduction yields durable materials, supporting scalable anion exchange membrane water electrolyzers.

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Sayed et al. (2024) studied this question.

synapsesocial.com/papers/68e5cebbb6db643587565775 https://doi.org/10.1149/ma2024-01341873mtgabs

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Implication

Experimental study demonstrates reduced overpotential and enhanced durability for nickel oxide nanospheres in alkaline electrolyte, highlighting potential for platinum-free water electrolyzers.

Ni-Derived NiO Nanosphere Electrocatalyst for Hydrogen Evolution Reaction: The Effect of Synthesis Variables on Activity and Durability

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Member takes

Implication

Key Points

Cite This Study

Ni-Derived NiO Nanosphere Electrocatalyst for Hydrogen Evolution Reaction: The Effect of Synthesis Variables on Activity and Durability

Discussion

Member takes

Implication

Key Points

Cite This Study

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