Hydrogen and Oxygen Evolution on Flexible Catalysts Based on Nickel–Iron Coatings DOI Open Access

Dmytro Shyshkin,

Loreta Tamašauskaitė–Tamašiūnaitė,

Dijana Šimkūnaitė

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 14(12), P. 843 - 843

Published: Nov. 22, 2024

The electrolysis of water is one low-cost green hydrogen production technologies. main challenge regarding this technology designing and developing high-activity catalysts. Herein, we present a strategy to fabricate flexible electrocatalysts based on nickel–iron (NiFe) alloy coatings. NiFe coatings were plated the copper-coated polyimide surface (Cu/PI) using straightforward electroless metal-plating method, with morpholine borane as reducing agent. It was found that Ni90Fe10, Ni80Fe20, Ni60Fe40, Ni30Fe70 deposited Cu/PI surface; then, concentration Fe2+ in plating solution 0.5, 1, 5, 10 mM, respectively. morphology, structure, composition NixFey/Cu/PI catalysts have been examined scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), diffraction (XRD), inductively coupled plasma–optical emission (ICP-OES), whereas their activity has investigated for evolution (HER) oxygen (OER) reactions 1 M KOH linear sweep voltammetry (LSVs). Ni80Fe20/Cu/PI catalyst exhibited lowest overpotential value −202.7 mV HER, obtaining current density mA cm−2 compared Ni90Fe10/Cu/PI (−211.9 mV), Ni60Fe40/Cu/PI (−276.3 Ni30Fe70/Cu/PI (−278.4 Ni (−303.4 mV). On other hand, OER (344.7 mV) observed catalyst, Ni35Fe65 (369.9 Ni80Fe20 (450.2 Ni90Fe10 (454.2 coatings, (532.1 developed exhibit cell potential 1.85 V at cm−2. obtained seem be suitable HER alkaline media.

Language: Английский

Ruthenium-doped molybdenum boride for electrocatalytic hydrogen evolution DOI
Xiang Wang,

Panfeng Fan,

Yu Xie

et al.

Fuel, Journal Year: 2025, Volume and Issue: 388, P. 134550 - 134550

Published: Feb. 1, 2025

Language: Английский

Citations

2
High electronegativity of Ag and P in high-entropy materials synergistically promotes efficient water electrolysis DOI
Bo Zhang,

Mengzhao Liu,

Jie Yin

et al.

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 105, P. 521 - 530

Published: Jan. 25, 2025

Language: Английский

Citations

1
Breaking symmetry for better catalysis: insights into single-atom catalyst design DOI
Peng Cao,

Xueqin Mu,

Fanjiao Chen

et al.

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This review examines the strategies of symmetry breaking (charge/coordination/geometric) in single-atom catalysts to regulate active site electronic structures, greatly enhancing catalytic performance.

Language: Английский

Citations

1
Advanced characterization enables a new era of efficient carbon dots electrocatalytic reduction DOI

Mingying Chen,

Junjie Ma,

Yanhong Feng

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 535, P. 216612 - 216612

Published: March 19, 2025

Language: Английский

Citations

1
Fe ion doping as an effective strategy to enhance oxygen evolution reaction activity in NiCo2O4 DOI
Xiaoxue Fu,

Juan Yu,

Han Li

et al.

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 630, P. 236159 - 236159

Published: Jan. 5, 2025

Language: Английский

Citations

0
Metal Doped Multicomponent Copper-Based Arrays for Formaldehyde Oxidation Assisted Dual Hydrogen Production System DOI
Hongjie Yu, Wenke Liu,

Shaojian Jiang

et al.

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

Published: Feb. 19, 2025

Green hydrogen production technology is an effective strategy for solving energy problems and environmental issues. In this paper, we report a bipolar system: Au–CuxO/CF∥Ru–CuxO/CF, in which the cathode produces through evolution reaction (HER) process anode formaldehyde oxidation (FOR). It found that when Au–CuxO/CF used FOR, C–H bond of will be broken at low potential to produce reactive H*. H* recombined Tafel step (H* + ⇌ H2) H2. At same time, oxidized high-value-added product HCOOH. We formation grain boundary-rich structures on Au–CuxO surface jointly promotes potentials. addition, introduced Ru elements into CuxO enhance cathodic HER. The FOR-HER system Au–CuxO/CF∥Ru–CuxO/CF was tested flow cell. produced current density 500 mA cm–2 only 0.38 V. This work provides construction catalyst design ideas voltages.

Language: Английский

Citations

0
Heterojunction-Forming In–NiS/In2O3 Nanoparticles for the Photocatalytic Degradation of Tetracycline under Full Solar Spectrum Response DOI
Zhenxing Ren, Yang Li,

Qiuyu Ren

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(15), P. 17424 - 17431

Published: July 19, 2024

Language: Английский

Citations

2
Tailoring of a novel High conductive, hydrophilic cum aerophobic CeO2-MoS2/PANI core-shell composite for enhancing the catalytic property of Ni-P electrode for hydrogen production DOI
Athira Krishnan,

Malavika,

Adhimoorthy Prasannan

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 178307 - 178307

Published: Dec. 1, 2024

Language: Английский

Citations

1
Capacitive deionization for ammonia recovery: Progresses and challenges DOI

Yiming Yang,

Binbin Tao,

Changhe Liu

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 500, P. 157324 - 157324

Published: Nov. 1, 2024

Language: Английский

Citations

0
Hydrogen and Oxygen Evolution on Flexible Catalysts Based on Nickel–Iron Coatings DOI Open Access

Dmytro Shyshkin,

Loreta Tamašauskaitė–Tamašiūnaitė,

Dijana Šimkūnaitė

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 14(12), P. 843 - 843

Published: Nov. 22, 2024

The electrolysis of water is one low-cost green hydrogen production technologies. main challenge regarding this technology designing and developing high-activity catalysts. Herein, we present a strategy to fabricate flexible electrocatalysts based on nickel–iron (NiFe) alloy coatings. NiFe coatings were plated the copper-coated polyimide surface (Cu/PI) using straightforward electroless metal-plating method, with morpholine borane as reducing agent. It was found that Ni90Fe10, Ni80Fe20, Ni60Fe40, Ni30Fe70 deposited Cu/PI surface; then, concentration Fe2+ in plating solution 0.5, 1, 5, 10 mM, respectively. morphology, structure, composition NixFey/Cu/PI catalysts have been examined scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), diffraction (XRD), inductively coupled plasma–optical emission (ICP-OES), whereas their activity has investigated for evolution (HER) oxygen (OER) reactions 1 M KOH linear sweep voltammetry (LSVs). Ni80Fe20/Cu/PI catalyst exhibited lowest overpotential value −202.7 mV HER, obtaining current density mA cm−2 compared Ni90Fe10/Cu/PI (−211.9 mV), Ni60Fe40/Cu/PI (−276.3 Ni30Fe70/Cu/PI (−278.4 Ni (−303.4 mV). On other hand, OER (344.7 mV) observed catalyst, Ni35Fe65 (369.9 Ni80Fe20 (450.2 Ni90Fe10 (454.2 coatings, (532.1 developed exhibit cell potential 1.85 V at cm−2. obtained seem be suitable HER alkaline media.

Language: Английский

Citations

0