Self‐Powered Hydrogen Production via Laser‐Coordinated NiCoPt Alloy Catalysts in an Integrated Zn‐Hydrazine Battery with Hydrazine Splitting DOI

Akash Prabhu Sundar Rajan,

Raja Arumugam Senthil, Cheol Joo Moon

et al.

Small Methods, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

Abstract This study proposes a novel approach for the rapid transformation of bimetallic NiCo‐oxides into trimetallic NiCoPt alloys using pulsed laser technique in an ethanol medium presence Pt salts. The electrochemical results demonstrate exceptional dual‐functional activity optimized NiCoPt‐10 alloy, effectively catalyzing both hydrogen evolution reaction (HER) and hydrazine oxidation (HzOR). Specifically, alloy presents low overpotential 90 mV at 10 mA·cm −2 HER small working potential 0.068 V versus reversible electrode (RHE) HzOR. In situ Raman spectroscopy theoretical calculations delivered insights alloy. Consequently, overall splitting (OHzS) electrolyzer, employing NiCoPt‐10||NiCoPt‐10 configuration, required only 0.295 to deliver . Notably, this catalyst as cathode combined with Zn foil anode Zn–hydrazine (Zn‐Hz) battery, achieved efficient (H 2 ) production energy efficiency 97%. Furthermore, self‐powered H is realized by integrating Zn‐Hz battery OHzS demonstrating its excellent practical applications. Thus, synthetic strategy can aid designing effective electrocatalysts addressing challenges production.

Language: Английский

Self‐Powered Hydrogen Production via Laser‐Coordinated NiCoPt Alloy Catalysts in an Integrated Zn‐Hydrazine Battery with Hydrazine Splitting DOI

Akash Prabhu Sundar Rajan,

Raja Arumugam Senthil, Cheol Joo Moon

et al.

Small Methods, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

Abstract This study proposes a novel approach for the rapid transformation of bimetallic NiCo‐oxides into trimetallic NiCoPt alloys using pulsed laser technique in an ethanol medium presence Pt salts. The electrochemical results demonstrate exceptional dual‐functional activity optimized NiCoPt‐10 alloy, effectively catalyzing both hydrogen evolution reaction (HER) and hydrazine oxidation (HzOR). Specifically, alloy presents low overpotential 90 mV at 10 mA·cm −2 HER small working potential 0.068 V versus reversible electrode (RHE) HzOR. In situ Raman spectroscopy theoretical calculations delivered insights alloy. Consequently, overall splitting (OHzS) electrolyzer, employing NiCoPt‐10||NiCoPt‐10 configuration, required only 0.295 to deliver . Notably, this catalyst as cathode combined with Zn foil anode Zn–hydrazine (Zn‐Hz) battery, achieved efficient (H 2 ) production energy efficiency 97%. Furthermore, self‐powered H is realized by integrating Zn‐Hz battery OHzS demonstrating its excellent practical applications. Thus, synthetic strategy can aid designing effective electrocatalysts addressing challenges production.

Language: Английский

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