First-principles study of substitutional solute and carbon interactions in tungsten

Kong, Xiang-Shan; Song, Changhui; Liang, Chunyong; Xie, Zhouqing; Liu, Changsong; Hou, Jie

doi:10.1007/s42864-022-00145-6

Cited by 10 publications

(1 citation statement)

References 29 publications

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“…Nonetheless, the application of hydrogen production technology by water electrolysis faces a significant challenge in the form of elevated overpotentials during the reaction, constraining its broader utilization in electrocatalytic hydrogen evolution reaction (HER) processes. In response to this challenge and to enhance the reaction efficiency, a multitude of catalysts have been developed with the aim of accelerating the HER rate and mitigating the overpotential associated with HER. , The most efficient catalyst for HER is Pt, but its industrial application for hydrogen production is hindered by its limited reserves, high cost, and low stability. − So, in the recent few years, increasing studies have been conducted to identify alternative catalysts with abundant availability, cost-effectiveness, exceptional activity, and long-term stability. − …”

Section: Introductionmentioning

confidence: 99%

Hierarchical Heterometallic Sulfur/Selenide Electrocatalysts Derived from Polyoxometalate for Enhanced Hydrogen Production Performance

Zhen,

Pang,

et al. 2024

Crystal Growth & Design

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The hydrogen evolution reaction (HER) holds significant importance in the process of hydrogen generation through water electrolysis. Currently, there is a pressing requirement to develop highly effective electrocatalysts to enhance HER rates and facilitate practical hydrogen production. A composite MoS 2 /CoS 2 @Ni 3 S 2 /Ni 3 Se 2 was fabricated by using (C 3 H 5 N 2 ) 6 [Co II Mo 12 O 40 ]•10H 2 O (CoMo 12 ) as the metal source, thioacetamide as the sulfur source, and nickel foam as both the nickel source and matrix. The fabrication process involved hydrothermal vulcanization and selenization stepwise assembly procedures. When evaluating the catalytically resolved water reaction for MoS 2 /CoS 2 @Ni 3 S 2 /Ni 3 Se 2 in a 1.0 M potassium hydroxide (KOH) electrolyte, the measured overpotential was 56 mV when the current density was 10 mA cm −2 . The value was close to the overpotential of a Pt electrode (35 mV). Furthermore, X-ray diffraction analyses performed both before and after the catalytic reaction, along with a 24 h stability assessment, provided unequivocal evidence of the outstanding stability of the electrode in 1.0 M KOH. Overall, the MoS 2 /CoS 2 @Ni 3 S 2 / Ni 3 Se 2 composite ranks among the most valuable nonprecious metal catalysts for the HER reported so far. The successful synthesis of MoS 2 /CoS 2 @Ni 3 S 2 /Ni 3 Se 2 presented in this study introduces a novel approach for creating highly efficient, nonprecious metal electrocatalysts.

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Section: Introductionmentioning

confidence: 99%

Hierarchical Heterometallic Sulfur/Selenide Electrocatalysts Derived from Polyoxometalate for Enhanced Hydrogen Production Performance

Zhen,

Pang,

et al. 2024

Crystal Growth & Design

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Molecularly Imprinted Electrochemical Sensor Constructed by Ferrocene‐Functionalized Carbon Nanotubes for Rapid Recognition and Determination of Tryptophan

Li,

Sun,

et al. 2024

ChemistrySelect

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Molecular imprinting is an advanced technology in the fabrication of novel chemical sensors recently applied, enabling rapid responses and highly selective binding to specific molecules, thereby enabling efficient detection of material constituents. In this study, a new molecularly imprinted electrochemical sensor (MIES) utilizing ferrocene‐functionalized carbon‐nanotubes (Fc‐CNTs) was developed for the determination of tryptophan (Trp). The formation of molecularly imprinted polymer (MIP) involves polymerization in dimethyl sulfoxide (DMSO) using Trp, methacrylic acid (MAA) and ethylene glycol dimethacrylate (EGDMA) as the template molecules, functional monomers, and cross‐linking agents, respectively. Due to the modification of MIPs, the sensor achieves high performance. The sensor demonstrates a linear range from 1 to 45 μM and from 45 to 330 μM, with the limit of detection of 0.44 μM, exceeding that of the majority of sensors reported in the literature. Furthermore, the sensor can effectively detect Trp in real samples, including human serum and amino acid oral liquid. The recovery rate of Trp in human serum samples is 94.2 % to 105.30 %, and in amino acid oral liquid is 94.3 % to 101.68 %. This study provides a promising approach for the effective detection and analysis of tryptophan constituents.

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Microstructures and properties of CVD TiN–TiCN–Al2O3 coated WC-8wt%Co-xRu cemented carbide

et al. 2023

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First-principles study of substitutional solute and carbon interactions in tungsten

Cited by 10 publications

References 29 publications

Hierarchical Heterometallic Sulfur/Selenide Electrocatalysts Derived from Polyoxometalate for Enhanced Hydrogen Production Performance

Hierarchical Heterometallic Sulfur/Selenide Electrocatalysts Derived from Polyoxometalate for Enhanced Hydrogen Production Performance

Molecularly Imprinted Electrochemical Sensor Constructed by Ferrocene‐Functionalized Carbon Nanotubes for Rapid Recognition and Determination of Tryptophan

Microstructures and properties of CVD TiN–TiCN–Al2O3 coated WC-8wt%Co-xRu cemented carbide

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