Dual-Modification Engineering of CoNi Alloy Realizing Robust Performance for Electrocatalytic Hydrogen Production DOI Open Access
Yutong Ye, Guorong Zhou,

Kaixun Li

et al.

Catalysts, Journal Year: 2023, Volume and Issue: 13(7), P. 1064 - 1064

Published: July 1, 2023

Anion modification and trace metal doping have been widely demonstrated to unique advantages in regulating both electrocatalytic activity the electronic structure of non-precious materials. Developing a simple practical preparation strategy is critical, but it still faces challenges. In this paper, novel type dual-modification approach put forward rationally design S, Pt-CoNi material, which can be grown directly on nickel foam (NF) one-step electrodeposition process. The multiple having plenty active sites, high conductivity, faster charge transfer endow optimized reaction kinetic for HER. prepared Pt-CoNi/NF catalyst displays excellent catalytic performance, low overpotential 116 mV at 50 mA cm−2 small Tafel slope 75 dec−1 are achieved. coupled Pt-CoNi/NF||FeOOH/NF electrolyzer delivers current density 100 potential 1.61 V as well superior stability under alkaline conditions. Our work experimentally confirms feasibility constructing dual-regulation via electrodeposition, also provides ideas controllable other high-performance electrodes electrocatalysis.

Language: Английский

Construction of hierarchical CoNiMoOxHy/NF nanostructures for highly efficient urea oxidation reaction DOI
Rui Xiang,

Yingxue Yu,

Chengyun Wang

et al.

Electrochimica Acta, Journal Year: 2024, Volume and Issue: 479, P. 143832 - 143832

Published: Jan. 19, 2024

Language: Английский

Citations

8
Phosphorus-Doped CuMn2O4 Nanoflakes: A Highly Performed Electrocatalyst for Oxygen Evolution Reaction and Hydrogen Evolution Reaction in an Alkaline Environment DOI
Munirah D. Albaqami,

Mehar Un Nisa,

Saikh Mohammad

et al.

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(16), P. 15533 - 15542

Published: July 26, 2024

For hydrogen production, the greatest emphasis is on development of economical and efficient bifunctional electrocatalysts. In present work, P-doped CuMn2O4 nickel foam (NF) prepared. physical structural analysis, XRD, FTIR, SEM, BET techniques are performed. The optimized P0.3-CuMn2O4/NF shows best OER HER activity compared to other concentrations pristine CuMn2O4/NF. exhibits reduced onset potentials 1.4 0.095 V vs RHE, overpotentials 208 103 mV at 10 mA cm–2, respectively. P0.3-CuMn2O4/NF, kinetic study utilizing Tafel slope 32 44 dec–1 suggests more rapid processes, Furthermore, following phosphorus doping, turnover frequency (TOF) enhanced intrinsic (TOF = 2.3 s–1 η 260 mV) 1.3 mV). excellent activities supported by double layer capacitance (Cdl 92 mF cm–2). Hence, a potential electrocatalyst for both processes in an alkaline environment because its improved performance.

Language: Английский

Citations

7
Materials of Value-Added Electrolysis for Green Hydrogen Production DOI Creative Commons
Endalkachew Asefa Moges,

Keseven Lakshmanan,

Chia‐Yu Chang

et al.

ACS Materials Letters, Journal Year: 2024, Volume and Issue: unknown, P. 4932 - 4954

Published: Oct. 3, 2024

Language: Английский

Citations

7
Dual Hydrogen Production System: Synergistic Effect of Ru and Ce Over Cu2O Nanotubes Drives Hydrogen Evolution and Formaldehyde Oxidation DOI

Hongjie Yu,

Lijun Zhang,

Shaojian Jiang

et al.

Small, Journal Year: 2024, Volume and Issue: 20(47)

Published: Aug. 22, 2024

Water splitting for hydrogen production is limited by high cell voltage and low energy conversion efficiencies due to the slow kinetic process of oxygen evolution reaction (OER). Here, an electrolytic system constructed in which cathode anode co-release H

Language: Английский

Citations

5
Amorphous/crystal interface modulation of RuCoWOx toward alkaline hydrogen evolution DOI

Zhi-Jie Zhang,

Ning Yu,

Hai-Yi Sun

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 68, P. 722 - 730

Published: April 30, 2024

Language: Английский

Citations

4
Highly selective and corrosion resistant interconnected pNiCo@NF electrocatalysts for methanol-assisted seawater electrolysis DOI
Faiza Zulfiqar, Farhan Arshad, Tanveer ul Haq

et al.

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 105, P. 1123 - 1132

Published: Jan. 29, 2025

Language: Английский

Citations

0
Controlled synthesis of spindle-like CoNi2S4 as electrode material for aqueous energy storage application DOI Open Access
Zemin He, Haiyang Wang, Miaomiao Liang

et al.

International Journal of Hydrogen Energy, Journal Year: 2023, Volume and Issue: 49, P. 81 - 89

Published: Nov. 17, 2023

Language: Английский

Citations

10
Electronic interaction of ruthenium species on bimetallic phosphide for superior electrocatalytic hydrogen generation DOI
Yiming Guo, Guorong Zhou, Yun Tong

et al.

Dalton Transactions, Journal Year: 2023, Volume and Issue: 52(36), P. 12733 - 12741

Published: Jan. 1, 2023

Trace Ru species are incorporated into NiCoP matrix on nickel foam (NF). Benefitting from the plenty of heterointerfaces, improved electronic interaction and reaction kinetics, Ru-NiCoP/NF shows a superior catalytic activity for HER.

Language: Английский

Citations

8
Unlocking the Potential of Water Splitting: FeMn-LDH/MoS2 Composite with Enhanced Activity and Durability DOI
Suman Kumar,

Sahana Raju,

M. Shivanna

et al.

ACS Applied Energy Materials, Journal Year: 2024, Volume and Issue: 7(21), P. 9872 - 9881

Published: Oct. 22, 2024

Development of efficient electrocatalysts for complete water splitting is crucial sustainable hydrogen production. Here, we report a highly active composite FeMn-layered double hydroxide (LDH) with molybdenum disulfide (MoS2) that exhibits significantly enhanced electrochemical water-splitting activity. The synergistic combination FeMn-LDH and MoS2 yields improved oxygen evolution reaction (OER) (HER) performances an overpotential 222 mV 120 at current density 10 mA/cm2, respectively. kinetics study FeMn-LDH/MoS2 was analyzed the help Tafel slopes 33.35 mV/dec OER process 112 HER process. electrocatalyst stable in both acidic basic media more than 24 h. overall electrocatalysis carried out using two-electrode systems (both electrodes as composites) having low voltage 1.64 V mA cm–2 density. activity attributed to increased surface area, charge transfer, modified electronic structure. This work demonstrates promising strategy designing sheds light on potential LDH/MoS2 composites energy applications.

Language: Английский

Citations

2
Enhanced hydrogen evolution reaction activity through samarium-doped nickel phosphide (Ni2P) electrocatalyst DOI Creative Commons
Ali Shahroudi, Sajjad Habibzadeh

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: July 22, 2024

Abstract Hydrogen evolution reaction (HER) stands out among conventional hydrogen production processes by featuring excellent advantages. However, the uncompetitive cost due to low energy efficiency has hindered its development, necessitating introduction of cost-effective electrocatalysts. In this study, we introduced samarium doping as a high-potential approach improve electrocatalytic properties nickel phosphide (Ni 2 P) for efficient HER. Samarium-doped Ni P was synthesized via facile two-step vapor–solid technique. Different physical and electrochemical analyses showed that significantly improved pure characteristics, such particle size, specific surface area, adsorption, intrinsic activity, active charge transfer ability in favor Namely, doped with 3%mol (Sm 0.03 Tafel slope 67.8 mV/dec. overpotential 130.6 mV at current density 10 mA/cm 1.0 M KOH solution exhibited notable performance, suggesting Sm remarkable electrocatalyst promising promoter HER process, respectively.

Language: Английский

Citations

1