Template-Assisted in situ synthesis of superaerophobic bimetallic MOF composites with tunable morphology for boosted oxygen evolution reaction

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 676, P. 238 - 248

Published: July 8, 2024

Language: Английский

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Regulating the Ni-O bond length by constructing Ni(OH)2/CNTs heterostructure for enhanced nucleophile electrocatalytic oxidation

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154525 - 154525

Published: Aug. 3, 2024

Language: Английский

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Coupled plasma etching and electrodeposition of CoP/NiO nanosheets with surface reconstruction for water-splitting

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(16), P. 9830 - 9840

Published: Jan. 1, 2024

Plasma etching and electrodeposition were employed to construct a CoP/PNF composite. The latter underwent significant surface reconstruction, which resulted in improved electrocatalytic stability during water-splitting.

Language: Английский

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Pyrrolic-N-B bonds mediated local charge distribution for boosting the capacitance of aqueous zinc-ion hybrid supercapacitors

Materials Today Sustainability, Journal Year: 2024, Volume and Issue: 26, P. 100785 - 100785

Published: April 16, 2024

Language: Английский

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Trimetallic FeNiMo Nanofibers as High-Efficiency Electrocatalyst for Robust Oxygen Evolution

ACS Materials Letters, Journal Year: 2024, Volume and Issue: unknown, P. 3548 - 3556

Published: July 11, 2024

Language: Английский

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Optimized crystalline/amorphous NiFeS@NiMoP on nickel foam as dual-functional electrocatalysts for urea-water splitting

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 68, P. 834 - 842

Published: May 1, 2024

Language: Английский

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Boosting the Production of Hydrogen from an Overall Urea Splitting Reaction Using a Tri‐Functional Scandium–Cobalt Electrocatalyst

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

Published: Sept. 24, 2024

Abstract The creation of highly efficient and economical electrocatalysts is essential to the massive electrolysis water produce clean energy. ability use urea reaction oxidation (UOR) in place oxygen/hydrogen evolution process (OER/HER) during splitting a significant step toward production high‐purity hydrogen with less energy usage. Empirical evidence suggests that UOR consists two stages. First, metal sites undergo an electrochemical pre‐oxidation reaction, then molecules on high‐valence are chemically oxidized. Here, scandium‐doped CoTe supported carbon nanotubes called Sc@CoTe/CNT reported CoTe/CNT as composite efficiently promote generation from durable active for OER/UOR/HER alkali solutions. Electrochemical impedance spectroscopy indicates facilitates charge transfer across interface. Furthermore, nanocatalyst has high performance KOH KOH‐containing solutions demonstrated by HER, OER, (215 mV, 1.59, 1.31 V, respectively, at 10 mA cm −2 1 m KOH) shows 195 1.61 1.3 respectively. Consequently, total system achieves 1.29 whereas overall device obtaines 1.49 V 1.54, 1.48 This work presents viable method combining HER maximally effective production.

Language: Английский

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Rational design of surface defects on manganese dioxide and tungsten carbide heterostructure electrode for robust and high-performance aqueous asymmetric supercapacitors

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 630, P. 236153 - 236153

Published: Jan. 5, 2025

Language: Английский

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Fine-tunable N-doping in carbon-coated CoFe nano-cubes for efficient hydrogen evolution in AEM water electrolysis

Advanced Composites and Hybrid Materials, Journal Year: 2025, Volume and Issue: 8(1)

Published: Jan. 20, 2025

To obtain environment-friendly and renewable hydrogen energy, research is being actively conducted towards lowering the evolution reaction (HER) energy barrier through various modifications to surface of a transition metal bimetal electrochemical catalyst. Herein, we report development highly N-doped carbon shell-encapsulated cobalt iron nano cube (CoFe@HNCS) fine-tuning nitrogen-doping content in shell. The pyridinic N-rich shell, achieved by adding melamine electrostatic interactions, improves conductivity, increases active sites, optimizes Gibbs free for adsorption. In alkaline HER performance, optimized CoFe@HNC20 exhibits lower overpotential (98.2 mV) than CoFe@NCS (133.2 at 10 mA cm−2. Furthermore, CoFe@HNCS20 as cathode catalyst anion exchange membrane (AEM) water electrolyzer also shows low cell voltage 1.808 V achieve current density 0.5 A expansion application combine solar cells AEM suggests possibility ecosystem.

Language: Английский

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Universal Synthesis of Single-Atom Electrocatalysts viaIn-Situ Fluoride Ion Etching for Hydrogen Evolution

Chemical Science, Journal Year: 2025, Volume and Issue: 16(10), P. 4402 - 4411

Published: Jan. 1, 2025

Single-atom catalysts (SACs) have attracted considerable interest in the field of electrocatalysis due to their high efficiency metal utilization and catalytic activity. However, traditional methods SACs fabrication are often complex time-consuming. Herein, F-Ru@TiO x N y was synthesized using a straightforward universal approach via situ surface etching heteroatoms immobilization on vacancies-rich hierarchical TiO nanorods array. The fluorine ion-etched could produce abundant oxygen vacancies F-Ti/F-C bonds, which capture stabilize Ru by strong host-guest electronic interactions. Due synergistic effect anchoring F-C bonds-assisted stabilization single atoms, revealed excellent electrocatalytic hydrogen evolution performance, low overpotential 20.8 mV at 10 mA cm-2, Tafel slope 59.9 dec-1 robust stability 100 cm-2 over 48 h. Furthermore, this strategy be applicable various heterometals (Pd, Ir, Pt), also exhibited dispersity HER activity/stability. This method is simple, easy-scalable versatile, showcasing significant potential for electrocatalysts design promising application prospects energy conversion.

Language: Английский

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