Freestanding (Ni4Zn)0.8 Intermetallic Nanosheets as Bifunctional Electrocatalysts for Urea-Assisted Hydrogen Production DOI
Huihui Li, Shaoxia Wang, Qianqian Zhu

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(16), P. 18861 - 18869

Published: Aug. 9, 2024

The electrochemical oxidation of urea provides an efficient and energy-saving method for the treatment wastewater containing along with hydrogen production. However, it is crucial to develop electrocatalysts possessing both high electrocatalytic activity long-term stability. In this study, a (Ni4Zn)0.8 intermetallic catalyst deposited on nickel foam (labeled as (Ni4Zn)0.8/NF) by rapid one-step electrodeposition technique. as-deposited can facilitate evolution reaction (HER) (UOR) simultaneously, displaying obvious bifunctional characteristics. Benefiting from metal–metal electronic modulation, (Ni4Zn)0.8/NF integral electrode exhibits low overpotential 45 mV at −10 mA cm–2 small Tafel slope 54.35 dec–1 in 1 M KOH solution HER; meanwhile, as-obtained requires only 1.40 V voltage achieve current density 100 0.5 urea. Employing as-prepared anode cathode urea-assisted water electrolysis device (HER||UOR system) reduction 258 against conventional (HER||OER system), which offers selection HER||UOR practical application.

Language: Английский

Advancing Green Hydrogen: Innovations and Challenges in Seawater Electrolysis for Sustainable Energy Production DOI
Fatma A. Gomaa, Amr A. Nada, Hassan Gomaa

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115644 - 115644

Published: Jan. 1, 2025

Language: Английский

Citations

3
P-doped Co-based nanoarray heterojunction with multi-interfaces for complementary HER/OER electrocatalysts towards high-efficiency overall water splitting in alkaline DOI
Jianxin Ran, Zhuanfang Zhang, Hui Feng

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 64, P. 935 - 946

Published: April 1, 2024

Language: Английский

Citations

14
Electronic Regulation by Fe-Doped CoPx Hydrophilic Self-Supported Nanorod Arrays as Bifunctional Electrocatalysts for Superior Overall Seawater Splitting DOI

Bo Sun,

Luchen Wang, Chunhu Li

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 3, 2025

To address the challenge of designing a highly reactive and stable bifunctional electrocatalyst for both hydrogen evolution reaction (HER) oxygen (OER), hydrophilic Fe-CoPx nanorod array on nickel foam (NF) was designed prepared in this work. The modulation d-band center Co by adding Fe effectively optimized adsorption energy intermediates. synergistic effect bimetallic active sites significantly enhanced electrocatalytic performance reactions. In alkaline seawater, Fe-CoPx/NF exhibited excellent HER (−32 mV at −10 mA cm–2) OER (216 10 activities, maintaining stability over 100 h cm–2. For overall seawater electrolysis, catalyst achieved low cell voltage 1.54 V cm–2, outperforming conventional RuO2∥Pt/C electrode (1.58 cm–2). Additionally, simulated industrial flow cell, operated stably 200 indicating its strong potential practical applications. This study introduced simple synthesis method phosphides, providing new avenue design high-performance catalysts electrolysis.

Language: Английский

Citations

2
Bimetallic Ni–Fe nanoparticles encapsulated with biomass-derived N-doped graphitic carbon core-shell nanostructures an efficient bifunctional electrocatalyst for enhanced overall seawater splitting and human urine electrolysis DOI
Rajathsing Kalusulingam, Krishnan Ravi,

Selvam Mathi

et al.

Materials Today Sustainability, Journal Year: 2024, Volume and Issue: 27, P. 100864 - 100864

Published: May 30, 2024

Language: Английский

Citations

7
Cutting-Edge OER Electrocatalysts for Sustainable Seawater Electrolysis: Progress, Obstacles, and Future Prospects DOI

Prerna Tripathi,

Amit Verma,

Amit Sinha

et al.

Energy & Fuels, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 17, 2024

The oxygen evolution reaction (OER) has a significant influence on the hydrogen (HER) in electrocatalytic splitting of water/seawater, because its sluggish kinetics and complex mechanism. Additionally, case seawater, presence chloride anions is harmful for metallic electrocatalysts their electrode surfaces, leading to oxidation generation environmentally chlorine gas or hypochlorite ion during process, decreasing efficiency OER hampering overall electrolysis process. To tackle this problem, highly potent advanced needs be designed electrolyzing seawater. This paper presents detailed discussion recent progress made research development process It comprehensively explores use many types catalysts, such as polymetallic heterostructure phosphides, layered double hydroxide-based materials, transition-metal oxides, spinel perovskite metal nitride seawater electrolysis. A summary performances few recently reported catalysts falling above categories been provided. An overview current state affairs that includes expenses, synthesis difficulties, activities, electrocatalyst stability provided order aid more accurate assessment. DFT calculations situ characterization methods help catalyst are highlighted extensively article. Furthermore, number requirements could come up electrochemical conversions have covered, including high conductivity, corrosion resistance, ability avoid aside reduction processes. superhydrophilic superaerophobic properties incorporated. particular property enhances electrode's interaction with electrolyte, increases mass transfer efficiency, speeds removal O2 bubbles OER. Compared freshwater electrolysis, variety challenges practical application (SWE). provides thorough all relevant data required generate an effective active SWE.

Language: Английский

Citations

3
Design principles of metal phosphides for the oxygen evolution reaction in seawater: activity, selectivity and stability DOI
Meng Li,

Zeyu Teng,

Chen Xi Liu

et al.

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

Published: Jan. 1, 2025

Direct seawater electrolysis technology shows great potential, but chloride ions corrode the electrodes and cause competitive reactions, which limits its application.

Language: Английский

Citations

0
Urchin-like Medium-Entropy Oxyhydroxide FeCoNiOOH Nanoparticles Supported on Nickel Foam for Seawater Oxidation DOI

Ruotong Song,

Yuanyuan Ma,

Mingyuan Shi

et al.

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Language: Английский

Citations

0
One-step Fabrication of P-Co5.47N/Co9S8@NPC Heterojunction Derived from Saccharomycetes Cerevisiae as Environment-Friendly Bifunctional High-efficiency Electrocatalysts DOI

Xiaoyun Jing,

Changwu Lv,

Hongmei Zhang

et al.

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: 697, P. 134411 - 134411

Published: June 3, 2024

Language: Английский

Citations

2
Freestanding (Ni4Zn)0.8 Intermetallic Nanosheets as Bifunctional Electrocatalysts for Urea-Assisted Hydrogen Production DOI
Huihui Li, Shaoxia Wang, Qianqian Zhu

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(16), P. 18861 - 18869

Published: Aug. 9, 2024

The electrochemical oxidation of urea provides an efficient and energy-saving method for the treatment wastewater containing along with hydrogen production. However, it is crucial to develop electrocatalysts possessing both high electrocatalytic activity long-term stability. In this study, a (Ni4Zn)0.8 intermetallic catalyst deposited on nickel foam (labeled as (Ni4Zn)0.8/NF) by rapid one-step electrodeposition technique. as-deposited can facilitate evolution reaction (HER) (UOR) simultaneously, displaying obvious bifunctional characteristics. Benefiting from metal–metal electronic modulation, (Ni4Zn)0.8/NF integral electrode exhibits low overpotential 45 mV at −10 mA cm–2 small Tafel slope 54.35 dec–1 in 1 M KOH solution HER; meanwhile, as-obtained requires only 1.40 V voltage achieve current density 100 0.5 urea. Employing as-prepared anode cathode urea-assisted water electrolysis device (HER||UOR system) reduction 258 against conventional (HER||OER system), which offers selection HER||UOR practical application.

Language: Английский

Citations

1