Advancements in MXene-based frameworks towards photocatalytic hydrogen production, carbon dioxide reduction and pollutant degradation: Current challenges and future prospects

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 523, P. 216226 - 216226

Published: Oct. 7, 2024

Language: Английский

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Unveiling the Electrocatalytic Performances of the Pd-MoS2 Catalyst for Methanol-Mediated Overall Water Splitting

Inorganics, Journal Year: 2025, Volume and Issue: 13(1), P. 21 - 21

Published: Jan. 15, 2025

Herein, this work elucidates the synthesis of Pd-MoS2 catalyst for application in methanol-mediated overall water splitting. The scanning electron microscope (SEM) and transmission (TEM) pictures offer an exciting nanostructured shape Pd-MoS2, depicting a high surface area. Further, high-resolution TEM (HRTEM) confirm lattice plane (100), spacing (0.26 nm), hexagonal crystal structure Pd-MoS2. Moreover, high-angle annular dark-field (HAADF) images related color maps disclose Mo, S, Pd elements exhibits lower overpotentials 224.6 mV [methanol-mediated hydrogen evolution reaction (MM-HER)] at −10 mA cm−2 133 oxygen (MM-OER)] 10 cm−2. illustrates noteworthy stability 15.5 h MM-HER 18 MM-OER by chronopotentiometry test. Excitingly, Pd-MoS2∥Pd-MoS2 cell reveals small potential 1.581 V compared to MoS2∥MoS2 (1.648 V) In addition, combination brilliant durability over

Language: Английский

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Noble metal confined in defect-enriched NiCoO2 with synergistic effects for boosting alkaline electrocatalytic oxygen evolution

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 686, P. 509 - 515

Published: Feb. 1, 2025

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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Main-Group Sn Single Atoms on MoS_2–x for Selective Nitrite Electroreduction to Ammonia

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 14, 2025

Electrocatalytic NO2–-to-NH3 reduction (NO2RR) offers an attractive way to remedy polluted NO2– and produce value-added NH3. In this study, main-group Sn single atoms anchored on S-vacancy-rich MoS2–x (Sn1/MoS2–x) are explored as a highly selective NO2RR catalyst. Combined theoretical computations in situ spectroscopic measurements reveal that the isolated Sn1 sites of Sn1/MoS2–x can not only promote activation hydrogenation but also favor NH3 desorption restrict H adsorption, thus enabling for synthesis. Remarkably, exhibits NH3–Faradaic efficiency 98.8% yield rate 1922.3 μmol h–1 cm–2 flow cell, outperforming most catalysts reported date.

Language: Английский

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Photoelectrocatalytic highly selective oxidation of glycerol to C3 products on Mo:BiVO4/NiOOH photoanodes

Journal of Electroanalytical Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 119019 - 119019

Published: Feb. 1, 2025

Language: Английский

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Unveiling the origin of high catalytic activity of WO₃/MWCNT nanocomposites for the hydrogen evolution reaction

Catalysis Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The electrocatalytic performance of the hydrogen evolution reaction (HER) largely relies on lower Tafel slope and overpotential values.

Language: Английский

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High Specific Surface Area MMT/NO2 Intercalated Modified MgAl-LDHs Core-Shell Composites: Effective Inhibition for Steel in Cl- Contaminated Saturated Ca(OH)2 Solution

Nanoscale Advances, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Core–shell NO 2 -LDHs@MMT composites for enhanced chloride adsorption and superior steel corrosion resistance.

Language: Английский

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In situ Construction of Free-Standing High-Performance Ni-Based Dual Intermetallic Composites for Alkaline Hydrogen Evolution

Transactions of Tianjin University, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Language: Английский

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Theoretical and experimental insights into tungsten-induced structural and electronic modulations of CoSe2 for superior hydrogen evolution reaction

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 121, P. 202 - 209

Published: March 31, 2025

Language: Английский

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