Economical iron-based catalyst electrode for highly stable catalytic industrial-scale overall seawater splitting DOI Creative Commons
Weiju Hao, Guoqing Huang,

Xunwei Ma

et al.

Carbon Neutrality, Journal Year: 2024, Volume and Issue: 3(1)

Published: Nov. 25, 2024

Abstract The development of economical and stable catalyst electrodes for industrial-scale seawater splitting is one the current challenges in hydrogen production. transition metals possess high electrical conductivity offer potential designing with intrinsic activity through appropriate modifications, thus holding promising applications industrial contexts. Herein, a durable self-supported bifunctional electrode (Fe@Ni) efficiency large area successfully constructed by step in-situ deposition iron on porous structure nickel foam (NF) via mild (298 K) electroplating method. Transition like can be properly modified to achieve activity. Due growth cost-effective NF surface, surface morphology electronic are reconstructed, which significantly improves electrochemical electron transfer capability electrode. hydrogen/oxygen evolution reaction (HER/OER) simulated (1 M KOH + 0.5 NaCl) require only 129 mV 323 overpotentials density 100 mA cm −2 . Overall (OWS) achieves 10 at low voltage 1.49 V faradaic nearly 100%. More importantly, remain industrial-level (1.0 A ) more than 50 days. attractively, this work realizes universal construction large-area multiple (e.g., Fe, Cu, Al, etc simple process, provides new strategy research energy materials.

Language: Английский

Economical iron-based catalyst electrode for highly stable catalytic industrial-scale overall seawater splitting DOI Creative Commons
Weiju Hao, Guoqing Huang,

Xunwei Ma

et al.

Carbon Neutrality, Journal Year: 2024, Volume and Issue: 3(1)

Published: Nov. 25, 2024

Abstract The development of economical and stable catalyst electrodes for industrial-scale seawater splitting is one the current challenges in hydrogen production. transition metals possess high electrical conductivity offer potential designing with intrinsic activity through appropriate modifications, thus holding promising applications industrial contexts. Herein, a durable self-supported bifunctional electrode (Fe@Ni) efficiency large area successfully constructed by step in-situ deposition iron on porous structure nickel foam (NF) via mild (298 K) electroplating method. Transition like can be properly modified to achieve activity. Due growth cost-effective NF surface, surface morphology electronic are reconstructed, which significantly improves electrochemical electron transfer capability electrode. hydrogen/oxygen evolution reaction (HER/OER) simulated (1 M KOH + 0.5 NaCl) require only 129 mV 323 overpotentials density 100 mA cm −2 . Overall (OWS) achieves 10 at low voltage 1.49 V faradaic nearly 100%. More importantly, remain industrial-level (1.0 A ) more than 50 days. attractively, this work realizes universal construction large-area multiple (e.g., Fe, Cu, Al, etc simple process, provides new strategy research energy materials.

Language: Английский

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