Synthesis of Solvent-Mediated Morphology-Controlled PdSn Alloy Nanocatalysts and their Application in Electrocatalysis of Ethylene Glycol and Ethanol

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(15), P. 7063 - 7070

Published: April 3, 2024

2D nanodendrites (NDs) and nanosheets (NSs) have been regarded as efficient nanocatalysts for enhancing the electrocatalytic performance due to their low coordinated sites abundant centers. Nevertheless, it remains challenging construct advanced NDs NSs in a single reaction system. Herein, by tuning volume ratios of mixed solvents, reduction diffusion rate Sn2+ on Pd template was rationally controlled prepare PdSn NSs. Ascribed open nanostructure, high specific surface area, robust synergistic effect, as-prepared exhibited distinguished activities ethylene glycol oxidation (EGOR) ethanol (EOR), well commendable durability, which were far superior commercial Pd/C. In addition, enhanced kinetics because characteristic branch structure exposed density active sites. This work may provide significant guidance preparing excellent with various morphological features simply optimizing content coexisting solvents.

Language: Английский

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Modified electronic structure and enhanced hydroxyl adsorption make quaternary Pt-based nanosheets efficient anode electrocatalysts for formic acid-/alcohol-air fuel cells

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 92, P. 142 - 150

Published: Jan. 11, 2024

Language: Английский

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Recent progress of advanced electrocatalysts for hydrogen production via hydrazine-assisted water electrolysis

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(19), P. 6218 - 6245

Published: Jan. 1, 2024

This review offers a comprehensive summary of the advanced electrocatalysts for HzOR-assisted water electrolysis. The inherent relationship between various regulatory strategies and catalytic performance is discussed.

Language: Английский

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Crystalline–Amorphous Heterophase PdMoCrW Tetrametallene: Highly Efficient Oxygen Reduction Electrocatalysts for a Long-Term Zn–Air Battery

Langmuir, Journal Year: 2024, Volume and Issue: 40(21), P. 11307 - 11316

Published: May 13, 2024

Metallenes have received sustained attention owing to their unique microstructure characteristics and compelling catalytic applications, but the synthesis of multielement crystalline–amorphous metallenes remains a formidable challenge. Herein, we report one-step wet chemical reduction method synthesize composition-tunable heterophase PdMoCrW tetrametallene. As-synthesized tetrametallene is composed approximately six seven atomic layers has flexible crimpiness, structure, high-valence metal species. Time-dependent experiments show that follows three-step growth mechanism includes nucleation, lateral growth, atom diffusion, respectively. The novel ultrathin optimized Pd electronic hydrophilic surface together greatly promote activity stability in alkaline oxygen reaction. Pd75.9Mo9.4Cr8.9W5.8/C exhibits excellent mass specific activities 2.81 A mgPd–1 4.05 mA cm–2, which are 20.07/14.46 23.42/16.20 times higher than those commercial Pt/C Pd/C, Furthermore, Zn–air battery assembled using as cathode catalyst achieves peak power density 156 mW cm–2 an ultralong durability 329 h. This study reports effective strategy for constructing quaternary advance non-Pt electrocatalysts toward reaction (ORR) performance battery.

Language: Английский

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Pd11Ni11Pt2 nanoparticles with three-phase surface enrichment for facilitating ethanol and ethylene glycol electrooxidation

Materials Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 8(14), P. 2578 - 2591

Published: Jan. 1, 2024

Rational surface/interface engineering of Pd-based materials plays an extremely important role in boosting the electrooxidation liquid fuels.

Language: Английский

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Au enables PdAu aerogel efficient catalysts for oxygen reduction and C2 alcohol oxidation

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 78, P. 443 - 451

Published: June 27, 2024

Language: Английский

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Solvothermal synthesis of PdCu nanorings with high catalytic performance for alcohol electrooxidation

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 677, P. 750 - 757

Published: Aug. 5, 2024

Language: Английский

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Synergistically driven PdCo alloy based on cross-linked carbon dots for efficient formic acid dehydrogenation

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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Harnessing Copper's Potential: A Review of Cu-Based Catalysts for Glycerol Conversion

BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS, Journal Year: 2025, Volume and Issue: 20(2), P. 193 - 220

Published: March 7, 2025

The increasing depletion of fossil fuel reserves and environmental concerns have accelerated the search for sustainable alternatives, leading to utilization biodiesel as a renewable energy source. Glycerol, key byproduct production, has been extensively investigated conversion into value-added compounds such lactic acid, acrylic 1,2-propanediol (1,2-PDO). Copper-based catalysts gained popularity due their low cost, high catalytic efficiency, friendliness. This review examines various copper-based systems glycerol through processes hydrogenolysis, oxidation, steam reforming, dehydration. work focuses on how Cu-based bimetallic catalysts, Cu-Ni, Cu-Co, Cu-Zn, improve reaction selectivity rates via synergistic interactions, better metal dispersion, optimized redox properties. Furthermore, new catalyst manufacturing methods, ammonia evaporation, hydrothermal, ion exchange approaches, shown improved stability reusability. findings show that successfully facilitate conversion, with selective pathways favouring generation 1,2-PDO, acid under optimal circumstances. However, deactivation caused by sintering coke formation remains concern. Future research should concentrate creating stable, multifunctional adding bio-derived support, improving conditions increase long-term efficiency industrial usability. emphasizes potential in promoting valorisation achieving more chemical industry. Copyright © 2025 Authors, Published BCREC Publishing Group. is an open access article CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Language: Английский

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Improved Ethylene Glycol Electro-Oxidation Using xPtyPd Electrocatalysts on Aza-BODIPY-Modified Carbon Black

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

This study presents an innovative approach for synthesizing bimetallic platinum (Pt) and palladium (Pd) electrocatalysts supported on aza-boron-dipyrromethene (aza-BODIPY, or DP)-modified carbon black (DP-C) to enhance the catalytic oxidation of ethylene glycol (EG) in alkaline media. DP as a modifier optimizes interaction between active metal nanoparticles support, improving activity. Pt Pd alloy were electrodeposited DP-C via cyclic voltammetry (CV), forming catalyst denoted xPtyPd/DP-C. The catalysts characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), photoelectron spectroscopy (XPS), revealing spherical with varying surface areas. Electrochemical tests, including CV, chronoamperometry (CA), electrochemical impedance (EIS), show that xPtyPd/DP-C exhibits superior EG performance, transfer, CO resistance, durability. mass specific activities PtPdPtPd/DP-C 1.4 1.2 times higher than Pt/C. Chemical doping heteroatoms tailors its properties, enhancing performance support formation metals. work provides promising strategy developing high-performance anode direct fuel cells.

Language: Английский

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