Fabrication of Bi‐Functional Samarium Oxide/Copper Oxide Nanocuboid Electrocatalyst for Electrochemical Water Splitting DOI

Muhammad Kashif Saleem,

Niaz Ahmad Niaz, Abdul Shakoor

et al.

Energy Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 16, 2024

The development of low‐cost, high‐performance electrocatalysts for the oxygen evolution reaction (OER) is essential a vast array chemical and energy transformation applications. Using non‐platinum metals as in key process such OER has become increasingly attractive given their relatively low cost, high electrocatalytic activity, environmental impact. Herein, to achieve better catalytic material with permeability mass charge transfer framework, novel, oxygen‐defective Sm 2 O 3 /CuO nanohybrid nanocuboid architecture developed. creation new composite which consist samarium oxide copper oxide, demonstrates effectiveness electrochemical water splitting. combined use improves performance, stability, durability due it synergistic effect. In alkaline media, nanocomposite exhibits an astonishing overpotential 248 mV along lower Tafel value 46 mVdec −1 also acceptable hydrogen (HER) performance. Due unprecedented porous morphology strong effect between two materials, impressive electrical properties performs exceptionally well electrocatalyst intrinsic At operational potential 0.5 V, displays outstanding reactivity, remarkable results during operation.

Language: Английский

NiFeCo alloy nanoparticles composited with phosphorus-doped vacancies-abundant carbon substrates as electrocatalyst for oxygen evolution reaction DOI

Hai Qian,

Zihao Long,

Shuqin Huang

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 999, P. 175050 - 175050

Published: May 31, 2024

Language: Английский

Citations

3
Triphase Heterogeneous Electrocatalysts of Ni and Co for High‐Performing Li‐O2 Batteries DOI Creative Commons
Shadeepa Karunarathne, Chanaka Sandaruwan, Yasun Y. Kannangara

et al.

EcoMat, Journal Year: 2025, Volume and Issue: 7(3)

Published: Feb. 16, 2025

ABSTRACT The limited energy density of the current Li‐ion batteries restricts electrification transportation to small‐ and medium‐scale vehicles. On contrary, Li‐O 2 (LOBs), with their significantly higher theoretical density, can power heavy‐duty transportation, if sluggish electrode kinetics in these devices be substantially improved. use solid electrocatalysts at cathode is a viable strategy address this challenge, but fail provide sufficient discharge depths cyclability, primarily due formation film‐like product, Li₂O₂, on catalytic sites, which obstructs charge transport gas diffusion pathways. Here, we report that triphase heterogeneous catalyst comprising NiCoP, NiCo S 4 , O assembled into hierarchical hollow architecture (NC‐3@Ni), efficiently modulates morphology orientation facilitating sheet‐like growth Li perpendicular surface. These modifications enable LOB deliver high capacity 25 162 mAh g −1 400 mA along impressive cycling performance, achieving 270 cycles depth 1000 exceeding 1350 h continuous operation. This promising performance attributed presence individual electrophilic nucleophilic phases within microstructure catalyst, collectively promoting . image

Language: Английский

Citations

0
Near‐Infrared‐Driven Photoelectrochemical Hydrogen Evolution Reaction Enabled by Plasmonic Gold Nanocone Arrays with High Curvatures DOI
Fei Zhang, Liping Ren, Qi Wang

et al.

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: May 13, 2025

Abstract Harvesting a wide range of light is essential for photo‐driven reactions. In this study, the near‐infrared (NIR, λ ≥ 800 nm) driven photoelectrochemical (PEC) hydrogen evolution enabled by design gold nanocone (AuNC) arrays with high curvature reported. It found that synergistic interplay between static geometric fields (tip curvature‐derived) and spectrally responsive localized surface plasmon resonance dynamic drives reactant enrichment at surfaces array structure enhances absorption AuNC due to plasmonic collective effect, together promoting efficiency PEC under visible enabling NIR‐driven evolution, which otherwise cannot be achieved Au nanoparticle photocathode. As prototype electrocatalyst, RuO 2 further loaded onto create antenna‐reactor (AuNC‐Ru), exhibits substantially higher performance than AuNP‐Ru, achieving an overpotential 25 27 mV 10 mA cm −2 reaction in alkaline NIR irradiation, respectively. addition, stability AuNC‐Ru exceeds 500 h 120 100 .

Language: Английский

Citations

0
Synergistic enhancement of hydrogen evolution reaction by one-step pyrolysis synthesis of 1T-2H MoS2 loaded nitrogen-doped carbon DOI
Jiabo Wang, Zhentao Liu,

Wenxin Wang

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 91, P. 942 - 949

Published: Oct. 18, 2024

Language: Английский

Citations

3
Benchmarking overall water splitting performance of heterostructured Fe-doped NiMo/NiCo@NF bifunctional electrocatalyst DOI
Leila Fathyunes, Corné Muilwijk, Dermot Brabazon

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 91, P. 965 - 976

Published: Oct. 19, 2024

Language: Английский

Citations

3
Interfacial Effects of NiFe-Based Bifunctional Electrocatalysts for Highly Efficient Overall Water Splitting DOI
Ruibin Guo, Zhifeng Zhao, Zhanhua Su

et al.

Langmuir, Journal Year: 2024, Volume and Issue: 40(49), P. 26339 - 26349

Published: Nov. 22, 2024

The reasonable design of highly efficient NiFe-based bifunctional electrocatalysts is imperative for water splitting and alleviation the energy crisis. Herein, are designed grown in situ on Ni foam by a simple hydrothermal method. interfacial effect among NiFe-LDH, Fe

Language: Английский

Citations

1
Fabrication of Bi‐Functional Samarium Oxide/Copper Oxide Nanocuboid Electrocatalyst for Electrochemical Water Splitting DOI

Muhammad Kashif Saleem,

Niaz Ahmad Niaz, Abdul Shakoor

et al.

Energy Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 16, 2024

The development of low‐cost, high‐performance electrocatalysts for the oxygen evolution reaction (OER) is essential a vast array chemical and energy transformation applications. Using non‐platinum metals as in key process such OER has become increasingly attractive given their relatively low cost, high electrocatalytic activity, environmental impact. Herein, to achieve better catalytic material with permeability mass charge transfer framework, novel, oxygen‐defective Sm 2 O 3 /CuO nanohybrid nanocuboid architecture developed. creation new composite which consist samarium oxide copper oxide, demonstrates effectiveness electrochemical water splitting. combined use improves performance, stability, durability due it synergistic effect. In alkaline media, nanocomposite exhibits an astonishing overpotential 248 mV along lower Tafel value 46 mVdec −1 also acceptable hydrogen (HER) performance. Due unprecedented porous morphology strong effect between two materials, impressive electrical properties performs exceptionally well electrocatalyst intrinsic At operational potential 0.5 V, displays outstanding reactivity, remarkable results during operation.

Language: Английский

Citations

0