Single-Atom to Ultrasmall Au Nanoparticles Anchored on NiFe Layered Double Hydroxide as Catalyst for Oxygen and Hydrogen Evolution Reactions DOI Creative Commons
Supak Pattaweepaiboon,

Panisara Samarungkasut,

Pawin Iamprasertkun

et al.

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

Published: Dec. 20, 2024

Owing to the limited supply and high cost, rational design of precious metal-based catalysts is essential importance for boosting electrocatalytic activity. Herein, variation Au species from single-atoms ultrasmall nanoparticles (3–6 nm) deposited on NiFe-layered double hydroxide (NiFe-LDH) was investigated as a bifunctional electrocatalyst oxygen hydrogen evolution reactions. The brucite-like layered structure NiFe-LDH verified by X-ray diffraction. existence single-atom well local bonding environment were evaluated high-resolution transmission electron microscopy photoelectron spectroscopy. integration into single atoms metallic shows significant improvement in activity 1 M KOH. Single-atom Au/NiFe-LDH (2Au/NiFe-LDH, 0.21 wt % Au) delivers lowest overpotential 209 mV catalyze 10 mA cm–2 OER current density with Tafel slope 46.5 dec–1. On other hand, nanoparticles/NiFe-LDH (50Au/NiFe-LDH, 3.22 possesses an 150 at HER 134.5 For overall water splitting, under optimum conditions, 2Au/NiFe-LDH//50Au/NiFe-LDH couple requires cell potentials 1.62 1.78 V deliver 100 These findings provide insights effect decoration catalyst surface efficient performance production O2 H2 alkaline electrolyte.

Language: Английский

Mesoporous Co-MoS2 with sulfur vacancies: A bifunctional electrocatalyst for enhanced water-splitting reactions in alkaline media DOI
Hongmei Wu, Yao Zhang, Baoshan Liu

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 684, P. 158 - 169

Published: Jan. 5, 2025

Language: Английский

Citations

1
Two Steps Hydrothermal Synthesis of MoS2 - ZnO Hybrid for the Enhancement in Electrocatalytic Hydrogen Evolution Reaction DOI
A C Dhariwal, Durba Banerjee, Nirvik Sen

et al.

Journal of Physics and Chemistry of Solids, Journal Year: 2025, Volume and Issue: unknown, P. 112588 - 112588

Published: Jan. 1, 2025

Language: Английский

Citations

0
Tribo-Mechanical and Microstructural Evaluation of Cu–MoS2 Nanocomposites Fabricated through Powder Metallurgy Route DOI
N. Sahoo, Syed Nasimul Alam, Bappa Das

et al.

Materials Today Communications, Journal Year: 2025, Volume and Issue: unknown, P. 112772 - 112772

Published: May 1, 2025

Language: Английский

Citations

0
Effect of sulfurization: comparative performance of NiMoO4 and MoS2-NixS6 catalysts in overall water splitting DOI

Yue Mao,

Lili Geng,

Qiangqiang Zhang

et al.

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 137, P. 95 - 106

Published: May 11, 2025

Language: Английский

Citations

0
Single-Atom to Ultrasmall Au Nanoparticles Anchored on NiFe Layered Double Hydroxide as Catalyst for Oxygen and Hydrogen Evolution Reactions DOI Creative Commons
Supak Pattaweepaiboon,

Panisara Samarungkasut,

Pawin Iamprasertkun

et al.

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

Published: Dec. 20, 2024

Owing to the limited supply and high cost, rational design of precious metal-based catalysts is essential importance for boosting electrocatalytic activity. Herein, variation Au species from single-atoms ultrasmall nanoparticles (3–6 nm) deposited on NiFe-layered double hydroxide (NiFe-LDH) was investigated as a bifunctional electrocatalyst oxygen hydrogen evolution reactions. The brucite-like layered structure NiFe-LDH verified by X-ray diffraction. existence single-atom well local bonding environment were evaluated high-resolution transmission electron microscopy photoelectron spectroscopy. integration into single atoms metallic shows significant improvement in activity 1 M KOH. Single-atom Au/NiFe-LDH (2Au/NiFe-LDH, 0.21 wt % Au) delivers lowest overpotential 209 mV catalyze 10 mA cm–2 OER current density with Tafel slope 46.5 dec–1. On other hand, nanoparticles/NiFe-LDH (50Au/NiFe-LDH, 3.22 possesses an 150 at HER 134.5 For overall water splitting, under optimum conditions, 2Au/NiFe-LDH//50Au/NiFe-LDH couple requires cell potentials 1.62 1.78 V deliver 100 These findings provide insights effect decoration catalyst surface efficient performance production O2 H2 alkaline electrolyte.

Language: Английский

Citations

0