Corrosion-Engineered Room-Temperature Deposition of NiMoO4/NiS/Ni(OH)2 at Nickel Foam: An Efficient Strategy and Electrocatalyst for the Oxygen Evolution Reaction DOI Creative Commons

Marilia Barreto Dalla Benetta,

Eithne Dempsey, Carmel B. Breslin

et al.

ACS Applied Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 30, 2024

The oxygen evolution reaction (OER) tends to limit the rate of electrolysis water. Accordingly, there is much interest in development electrocatalysts for this important half-reaction. Herein, a NiMoO4/NiS/Ni(OH)2 composite was nucleated directly at nickel foam electrode room temperature and used as an effective electrocatalyst OER. formed aqueous solution thiomolybdate (2.5 mM) dissolved 0.1 M acetate pH 7.5. Its formation facilitated through hydrolysis corrosion foam. Highly adherent deposits were surface throughout porous network give electrochemical active area that approximately 11-fold higher than pristine OER activity NF/NiMoO4/NiS/Ni(OH)2 studied alkaline 1.0 KOH solution. An onset potential 1.47 V vs RHE Tafel slope 110 mV dec–1 observed. required deliver current density 50 mA cm–2 1.56 RHE. Finally, exhibited very good stability over 16 h period.

Language: Английский

Superhydrophilic and Underwater Superaerophobic Dual-Function Peony-Shaped Selenide Micro–nano Array Self-Supported Electrodes for High-Efficiency Overall Water Splitting Driven by Renewable Energy DOI

Leihuan Mu,

Yali Yao, Qinghua Liu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(37), P. 49349 - 49361

Published: Sept. 4, 2024

With the intensification of global environmental pollution and resource scarcity, hydrogen has garnered significant attention as an ideal alternative to fossil fuels due its high energy density nonpolluting nature. Consequently, urgent development electrocatalytic water-splitting electrodes for production is imperative. In this study, a superwetting selenide catalytic electrode with peony-flower-shaped micronano array (MoS

Language: Английский

Citations

11
Low-Level Fe Doping in CoMoO4 Enhances Surface Reconstruction and Electronic Modulation Creating an Outstanding OER Electrocatalyst for Water Splitting DOI

Chengzhuo Li,

Xiaolu Yang,

Y.J. Kou

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Efficient and stable nonprecious metal-based oxygen evolution reaction (OER) electrocatalysts are pivotal for water electrolysis technology. Herein, we reporting an effective strategy fabricating efficient Co-based OER by low-level Fe doping in CoMoO4 to boost surface reconstruction electronic modulation, which resulted excellent electroactivity consequently. Our findings reveal that a mere 5.30% (wt %) of can raise the O 2p band center energy nearer Fermi level, reduce barrier vacancy (VO) formation, significantly enhance electrocatalytic activity. Additionally, fast dissolution Mo initial facilitated form active oxyhydroxide species stabilized Co from leaching. As result, optimized catalyst Fe-CoMoO4-0.2 exhibited low overpotential 276 mV at 10 mA cm-2 1 M KOH operate stably current density 20 least 24 h under splitting conditions. This work provides example regulating structure properties catalysts.

Language: Английский

Citations

1
Three-dimensional C-MoS2-NiFeO@NF Nanohybrids as Highly Efficient Bifunctional Catalysts for Overall Water Splitting DOI
Wenyue Zhang, Jing Sui, Guojin Sun

et al.

Materials Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown, P. 130914 - 130914

Published: April 1, 2025

Language: Английский

Citations

0
Tantalum-induced reconstruction of nickel sulfide for enhanced bifunctional water splitting: Separate activation of the lattice oxygen oxidation and hydrogen spillover DOI
Xuanzhi Liu, Meihuan Liu,

Hanxiao Liao

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 680, P. 568 - 577

Published: Nov. 7, 2024

Language: Английский

Citations

3
Trace iron induced piezo-polarization field strength on piezo-promoted peroxymonosulfate activation for pollutant degradation DOI

Wangchuan Zhu,

Chuantao Wang, Xiang Li

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 156086 - 156086

Published: Sept. 1, 2024

Language: Английский

Citations

1
Recent advantages on mass transfer structure construction in transition metal‐based cost‐effective catalyst toward alkaline oxygen evolution DOI
Xuehua Zhang, Li Zhang,

Songlei Lv

et al.

ChemCatChem, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 9, 2024

Abstract The electrochemical oxygen evolution reaction (OER) can be combined with various reactions to fabricate energy conversion and storage devices while the slow kinetics poor mass transfer capability at high current densities are key constraints its large‐scale application. Therefore, this review primarily focuses on design optimization of structures TM‐metal‐based OER catalysts. Nanostructuring, porous design, creation hierarchical architectures have been applied during catalyst synthesis enhance surface area accessibility, thereby improving catalytic efficiency. Strategies including doping, substrate invitation, soft/hard templating utilized accelerate as well ion/electron conduction efficiency for overall improvement performance These developments underline critical role advanced material in achieving high‐performance catalysts highlight potential TM‐based materials cost‐effective scalable applications.

Language: Английский

Citations

0
Corrosion-Engineered Room-Temperature Deposition of NiMoO4/NiS/Ni(OH)2 at Nickel Foam: An Efficient Strategy and Electrocatalyst for the Oxygen Evolution Reaction DOI Creative Commons

Marilia Barreto Dalla Benetta,

Eithne Dempsey, Carmel B. Breslin

et al.

ACS Applied Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 30, 2024

The oxygen evolution reaction (OER) tends to limit the rate of electrolysis water. Accordingly, there is much interest in development electrocatalysts for this important half-reaction. Herein, a NiMoO4/NiS/Ni(OH)2 composite was nucleated directly at nickel foam electrode room temperature and used as an effective electrocatalyst OER. formed aqueous solution thiomolybdate (2.5 mM) dissolved 0.1 M acetate pH 7.5. Its formation facilitated through hydrolysis corrosion foam. Highly adherent deposits were surface throughout porous network give electrochemical active area that approximately 11-fold higher than pristine OER activity NF/NiMoO4/NiS/Ni(OH)2 studied alkaline 1.0 KOH solution. An onset potential 1.47 V vs RHE Tafel slope 110 mV dec–1 observed. required deliver current density 50 mA cm–2 1.56 RHE. Finally, exhibited very good stability over 16 h period.

Language: Английский

Citations

0