Molybdenum disulfide as hydrogen evolution catalyst: From atomistic to materials structure and electrocatalytic performance

Journal of Energy Chemistry, Journal Year: 2023, Volume and Issue: 87, P. 256 - 285

Published: Aug. 23, 2023

Hydrogen production via water electrolysis defines the novel energy vector for achieving a sustainable society. However, true progress of given technology is hindered by sluggish and complex hydrogen evolution reaction (HER) occurring at cathodic side system where overpriced scarce Pt-based electrocatalysts are usually employed. Therefore, efficient platinum group metals (PGMs)-free to carry out HER with accelerated kinetics urgently demanded. In this scenario, molybdenum disulfide (MoS2) owing efficacious structural attributes optimum hydrogen-binding free (ΔGH*) emerging as reliable alternative PGMs. performance MoS2-based still far away from benchmark performance. The activity MoS2 can be improved engineering parameters i.e., doping, defects inducement, modulating electronic structure, stabilizing 1T phase, creating nanocomposites, altering morphologies using appropriate fabrication pathways. Here, we have comprehensively reviewed majority scientific endeavors published in recent years uplift different methods. Advancements major strategies including hydrothermal synthesis methods, chemical vapor deposition, exfoliation techniques, plasma treatments, methodologies, etc. tune hence their ultimate influence on electrocatalytic acidic and/or alkaline media been thoroughly discussed. This study provide encyclopedic insights about routes that pursued improve electrocatalysts.

Language: Английский

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Electrochemically Grown Ultrathin Platinum Nanosheet Electrodes with Ultralow Loadings for Energy-Saving and Industrial-Level Hydrogen Evolution

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: June 3, 2023

Nanostructured catalyst-integrated electrodes with remarkably reduced catalyst loadings, high utilization and facile fabrication are urgently needed to enable cost-effective, green hydrogen production via proton exchange membrane electrolyzer cells (PEMECs). Herein, benefitting from a thin seeding layer, bottom-up grown ultrathin Pt nanosheets (Pt-NSs) were first deposited on Ti substrates for PEMECs fast, template- surfactant-free electrochemical growth process at room temperature, showing highly uniform surface coverage ultralow loadings vertically well-aligned nanosheet morphologies. Combined an anode-only Nafion 117 catalyst-coated (CCM), the Pt-NS electrode loading of 0.015 mgPt cm-2 demonstrates superior cell performance commercial CCM (3.0 cm-2), achieving 99.5% savings more than 237-fold higher utilization. The remarkable is mainly due good exposing abundant active sites reaction. Overall, this study not only paves new way optimizing uniformity but also provides insights into nanostructured design efficient low-cost other energy storage/conversion devices.

Language: Английский

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Regulating the electronic state of SnO2@NiFe-LDH heterojunction: Activating lattice oxygen for efficient oxygen evolution reaction

Fuel, Journal Year: 2024, Volume and Issue: 370, P. 131762 - 131762

Published: May 4, 2024

Language: Английский

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Waste-derived carbon nanostructures (WD-CNs): An innovative step toward waste to treasury

Environmental Research, Journal Year: 2024, Volume and Issue: 246, P. 118096 - 118096

Published: Jan. 1, 2024

Language: Английский

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High Thermoelectric Performance of n-type BiTeSe-Based Composites Incorporated with Both Inorganic and Organic Nanoinclusions

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(13), P. 16732 - 16743

Published: March 20, 2024

N-type Bi

Language: Английский

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