Unveiling the Synergistic Effect of Two-Dimensional Heterostructure NiFeP@FeOOH as Stable Electrocatalyst for Oxygen Evolution Reaction DOI Open Access

Qinglong Hou,

Zhigang Jiang, Chen Wang

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 14(8), P. 511 - 511

Published: Aug. 7, 2024

Introducing multiple active sites and constructing a heterostructure are efficient strategies to develop high-performance electrocatalysts. Herein, two-dimensional NiFeP@FeOOH nanosheets supported by nickel foam (NF) prepared hydrothermal–phosphorization–electrodeposition process. The synthesis of self-supporting on NF increases the specific surface region, while bimetallic phosphide realizes rapid charge transfer, improving electron transfer rate. introduction FeOOH construction result in synergistic effect among components, surface-active abundant. In situ Raman spectroscopy showed that excellent oxygen evolution reaction (OER) performance was due reconstruction-induced hydroxyl oxide, which achieved multi-active site reaction. NiFeP@FeOOH/NF electrocatalytic activity then significantly improved. findings indicate 1.0 M KOH alkaline solution, an OER overpotential 235 mV at 100 mA cm−2, Tafel slope 46.46 dec−1, it worked stably 50 cm−2 for 80 h. This research proves introducing great significance study properties

Language: Английский

Optimizing the activity of hydrogen evolution reaction through controllable synthesis of single crystal or polycrystalline Ni P DOI

Zhuo Qiu,

Yiqi Dai,

Fangyuan Yang

et al.

Journal of Alloys and Compounds, Journal Year: 2023, Volume and Issue: 976, P. 173029 - 173029

Published: Dec. 6, 2023

Language: Английский

Citations

3
Optimization of Light Response and Electron Redistribution of Active Sites by Structuring Cos2/Mos2 Heterojunction for Highly Efficient Photo-Assisted Oxygen Evolution DOI
Yanrong Ren, Chaoyang Shi,

Enze Zhu

et al.

Published: Jan. 1, 2024

Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI

Language: Английский

Citations

0
Surface Reconstruction of Hierarchical Conip@Ni2p Nanoarray to Promote Overall Water Splitting DOI

Jiali Mao,

Jinwei Kang,

Wenlan Wang

et al.

Published: Jan. 1, 2024

Efficient water splitting remains a challenge to produce clean and pure H2 in an industrial scale for the lack of high-performance cost-effective stable electrocatalysts hydrogen oxygen evolution (HER OER). Surface engineering is novel proposal upgrade electrocatalytic performances HER OER during with energy-saving. Herein, hierarchical architecture composed carbon-supported CoNiP nanoplates (NPs) on Ni2P nanowire was constructed. The nanoarray CoNiP@Ni2P heterostructure shows high bifunctional activity OER. overpotential 46 mV required at 10 mA·cm-2 292 100 1 mol·L-1 KOH. In addition, also stability HER. can be maintained 11 without loss after 50 h cathode polarization mV, while continuously increases from 26 64 400 anode polarization. enhancement performance ascribed surface reconstruction CoNiP/Ni2P nanoarray, which offer more active sites Density functional theory (DFT) reveals create oxygen-rich favor intermediate adsorption, thus enabling fast kinetics interface NiCoOOH/Ni2P heterostructure. This work highlights adaptability design advanced catalysts efficient commercial production.

Language: Английский

Citations

0
NiFeP Microsphere Electrocatalyst for High-Efficiency Electrolysis of Water DOI Open Access
Li Ding, Xiang Wu

Catalysts, Journal Year: 2024, Volume and Issue: 14(8), P. 485 - 485

Published: July 29, 2024

Electrochemical water splitting is a viable solution for producing clean energy sources. However, the sluggish reaction kinetics and high overpotential restrict their further application in large-scale hydrogen generation. In this work, we prepared NiFeP catalysts by hydrothermal phosphorization treatment studied effect of temperature on morphology properties samples. The NiFeP-140 samples possess specific surface area 25.13 m2g−1, which provides many active sites electrochemical reaction. They show an 93 mV at 10 mA cm−2 evolution (HER) 233 @ 50 oxygen (OER). Also, Tafel slopes 79.24 dec−1 80.73 This facile strategy can be extended to prepare other transition-metal electrocatalysts.

Language: Английский

Citations

0
Unveiling the Synergistic Effect of Two-Dimensional Heterostructure NiFeP@FeOOH as Stable Electrocatalyst for Oxygen Evolution Reaction DOI Open Access

Qinglong Hou,

Zhigang Jiang, Chen Wang

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 14(8), P. 511 - 511

Published: Aug. 7, 2024

Introducing multiple active sites and constructing a heterostructure are efficient strategies to develop high-performance electrocatalysts. Herein, two-dimensional NiFeP@FeOOH nanosheets supported by nickel foam (NF) prepared hydrothermal–phosphorization–electrodeposition process. The synthesis of self-supporting on NF increases the specific surface region, while bimetallic phosphide realizes rapid charge transfer, improving electron transfer rate. introduction FeOOH construction result in synergistic effect among components, surface-active abundant. In situ Raman spectroscopy showed that excellent oxygen evolution reaction (OER) performance was due reconstruction-induced hydroxyl oxide, which achieved multi-active site reaction. NiFeP@FeOOH/NF electrocatalytic activity then significantly improved. findings indicate 1.0 M KOH alkaline solution, an OER overpotential 235 mV at 100 mA cm−2, Tafel slope 46.46 dec−1, it worked stably 50 cm−2 for 80 h. This research proves introducing great significance study properties

Language: Английский

Citations

0