Tuning of physicochemical and electronic characteristics of Cu-doped NiCo2O4 ternary inverse spinel oxides for effective electrocatalytic hydrogen evolution reaction

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 62, P. 162 - 171

Published: March 11, 2024

Language: Английский

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Water-regulated 2D Ni-MOF-derived heat-sheared Nano-Ni@TC for efficient hydrogen evolution

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 64, P. 389 - 397

Published: March 28, 2024

Language: Английский

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Effects of substrate materials and electrodeposition parameters on hydrogen evolution reaction of Ni–Cu–Fe coatings

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 77, P. 1117 - 1132

Published: June 21, 2024

Language: Английский

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Phosphorus–nitrogen Co-doped 3D RuCo spheres on activated carbon cloth with enhanced electrocatalytic activity for hydrogen and oxygen evolution reactions

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 122, P. 270 - 278

Published: April 1, 2025

Language: Английский

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N-doped carbon-enveloped CoSe2/NiSe2@Cu2Se core-shell nanospheres as non-Pt electrocatalysts for enhanced wide-pH hydrogen evolution reactions

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1001, P. 175094 - 175094

Published: June 5, 2024

Language: Английский

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Achievements and Challenges in Surfactants‐Assisted Synthesis of MOFs‐Derived Transition Metal–Nitrogen–Carbon as a Highly Efficient Electrocatalyst for ORR, OER, and HER

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 28, 2024

Abstract Metal–organic frameworks (MOFs) are excellent precursors for preparing transition metal and nitrogen co‐doped carbon catalysts, which have been widely utilized in the field of electrocatalysis since their initial development. However, original MOFs derived catalysts greatly limited development application due to disadvantages such as atom aggregation, structural collapse, narrow pore channels. Recently, surfactants‐assisted attracted much attention from researchers advantages hierarchical porous structure, increased specific surface area, many exposed active sites. This review mainly focuses on synthesis methods comprehensively introduces action surfactants materials structure‐activity relationship between oxygen reduction reaction, evolution hydrogen reaction performance. Apparently, aims this not only introduce status but also contribute rational design fuel cells, metal–air electrolysis water toward production.

Language: Английский

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Facile one-step synthesis of porous PtPb neural network-like nanowires for electrooxidation of methanol with a CO-poisoning tolerance

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 91, P. 1127 - 1135

Published: Oct. 19, 2024

Language: Английский

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N-Doped Carbon-Enveloped Cose2/Nise2@Cu2se Core-Shell Nanospheres as Non-Pt Electrocatalysts for Enhanced Wide-Ph Hydrogen Evolution Reactions

Published: Jan. 1, 2024

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Language: Английский

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Dandelion-Like Vse2-Embellished Cuse-Co3se4 Hollow Nanotube Clusters as Bifuncational Catalysts for High-Performance Solar Cells and Alkaline Hydrogen Evolution

Published: Jan. 1, 2024

The search for green energy is still pursued by many researchers, with promising examples including dye-sensitized solar cells (DSSCs) and hydrogen derived from evolution reactions (HERs). Among the various non-precious metal catalysts that drive DSSCs HERs, transition selenides (TMSs) have received extensive attention due to their unique electronic properties tunable morphology. Herein, using CuCo-LDH (copper-cobalt hydroxide) as a template, doped element vanadium selenized through hydrothermal reaction, hollow structure CuSe-Co3Se4@VSe2 was synthesized successfully used bifunctional catalyst alkaline HER DSSCs. It characterized presents dandelion-like clusters composed of nanotubes VSe2 nanoparticles adsorbed on surface. Due synergistic effect elements, showed excellent (76 mV@10 mA cm–2) performances (power conversion efficiency, PCE = 9.64%).

Language: Английский

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Cost-effective synthesis of stable CoxC@few-layered graphene nanostructures embedded in a carbon matrix

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 995, P. 174799 - 174799

Published: May 11, 2024

In this study, a two-step surfactant sol-gel strategy is developed to synthesize Co particles with confined sizes in the nanoscale using organic precursors. This approach does not require use of vacuum techniques or strong reducing atmospheres, making it simple economically attractive. The involves generation few-layered graphene shells provide chemical stability, prevent oxidation and aggregation tendencies. Additionally, study investigates precursors based on nitrates acetates, exploring their structural magnetic properties densified samples. Remarkably, are competitive for both approaches, coercivities reaching up 300 Oe saturation magnetization ∼60 ∼80 emu/g samples acetates prepared at 650 °C, respectively. However, observed that smaller more uniformly sized nanoparticles (around ∼10 nm) obtained nitrate-based due an effective ligand decomposition process. Therefore, offers confinement intriguing through cost-effective reproducible synthesis.

Language: Английский

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