Thermodynamic aspects of co-formation of different condensed phases from CH4–WCl6 gas mixtures diluted in H2

Aneela, R.; Srikanth, Vadali V. S. S.

doi:10.1007/s00339-018-2052-0

Cited by 4 publications

(3 citation statements)

References 39 publications

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“…The chemical vapor-phase synthesis (CVS) of WC powder refers to the preparation of WC powders via hydrogen and hydrocarbon vapor reduction precursors (Dushik et al, 2018). If WCl 6 is used as a precursor, CH 4 and hydrogen are taken as the C source and reducing agent, respectively, and the reaction temperature is set to 1200 • C, the following reaction takes place (Aneela and Srikanth, 2018):…”

Section: Vapor-phase Methodsmentioning

confidence: 99%

Preparation Technology of Ultra-Fine Tungsten Carbide Powders: An Overview

Tan

et al. 2020

Front. Mater.

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Ultrafine tungsten carbide (WC) powder refers to WC powders with a particle size between 100 and 500 nm. Researchers have improved the comprehensive properties of WC-based cemented carbides by preparing ultra-fine WC powders. Because of the preparation and application of nanoscale WC powders, ultrafine-grain cemented carbides with excellent hardness and wear resistance have been successfully produced. In this paper, the preparation methods of ultra-fine WC powder are divided into solid-phase, liquid-phase, and vapor-phase methods according to the state of the raw materials (i.e., the W or C source). The liquid-phase methods could realize the preparation of WC at the temperature between 500 and 800 • C. The purity of WC prepared by vapor-phase method is the highest. The solid-phase reduction carbonization method has potential industrial application.

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Section: Vapor-phase Methodsmentioning

confidence: 99%

Preparation Technology of Ultra-Fine Tungsten Carbide Powders: An Overview

Tan

et al. 2020

Front. Mater.

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“…[84] CH 4 and H 2 were used as C sources when WCl 6 was used as precursor and the temperature was adjusted to 1200 °C, the following mechanism happened. [94] CH…”

Section: Preparation Approaches Of Pure Phase Wcmentioning

confidence: 99%

“…Furthermore, the powders of tungsten carbide could be manufactured through chemical vapor‐phase synthesis (CVS) [84] . CH 4 and H 2 were used as C sources when WCl 6 was used as precursor and the temperature was adjusted to 1200 °C, the following mechanism happened [94]

\vcenter{\openup.5em\halign{$\displaystyle{#}$\cr {\rm CH}{_{4}}({\rm g})+{\rm WCl}{_{6}}({\rm g})+{\rm H}{_{2}}({\rm g})\ \rightarrow {\rm 6HCl}({\rm g})+{\rm WC}({\rm s})\hfill\cr}}

…”

Section: Preparation Approaches Of Pure Phase Wcmentioning

confidence: 99%

Tungsten Carbide‐Based Materials for Electrocatalytic Water Splitting: A Review

Rafique,

Fu,

Han

et al. 2024

ChemElectroChem

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Hydrogen has garnered considerable attention as an environmentally friendly due to its sustainability and exceptional energy density, surpassing other chemical fuels. For H2 production, electrochemical water splitting is an economically viable and eco‐friendly method. Developing well‐organized electrocatalysts for electrochemical water splitting is pivotal in enabling long‐term hydrogen production, the critical component in the transition toward a cleaner and more environmentally sustainable energy landscape. During the last decades, to aid in oxygen evolution and hydrogen evolution reactions, numerous tungsten carbide‐based electrocatalysts have been established. WC developed as a promising candidate for electrolytic hydrogen generation. This review first explores the historical background and fundamental mechanisms underlying water splitting and subsequently investigates the field of WC‐based electrocatalysts. Furthermore, in both HER and OER, the thorough analysis examines the electrocatalytic performance of electrocatalysts based on WC. Finally, it discusses the challenges and prospects of developing WC‐based electrocatalysts for OER and HER, shedding light on their potential contributions to the sustainable energy landscape.

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