Engineering nanointerface of molybdenum-based heterostructures to boost the electrocatalytic hydrogen evolution reaction

Liu, Tong; Zhou, Shuqing; Qi, Jing; Wang, Kaiwen; Zheng, Lirong; Huang, Qingming; Zhou, Tianhua; Zhang, Jian

doi:10.1016/j.jechem.2020.10.004

Cited by 18 publications

(7 citation statements)

References 61 publications

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“…In addition, the exchange current density results (Figure 3c and Figure S9, Supporting Information) show that Ni‐CeF 3 ‐VN exhibits the highest value, which further illustrates that this material possesses the strongest electron gain‐loss ability from the thermodynamic perspective. [ 20 ] The above characterization results indicate that the introduction of CeF 3 and VN can effectively reduce the thermodynamic energy barrier as well as accelerate the kinetic rate of HER.…”

Section: Resultsmentioning

confidence: 93%

Construction of Nickel‐Based Dual Heterointerfaces towards Accelerated Alkaline Hydrogen Evolution via Boosting Multi‐Step Elementary Reaction

Zhou

Tao

et al. 2021

Adv Funct Materials

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The introduction of composite components to construct heterointerfaces is an important way to improve the electrocatalytic performance of materials. However, selecting appropriate components to accelerate the elementary reaction rates of the hydrogen evolution reaction (HER) in alkaline media is still in challenge. Here, a Ni‐CeF3‐VN multi‐component material is successfully constructed, which exhibits excellent HER catalytic activity (33 mV at 10 mA cm−2). The experimental and computational results show that the Ni‐VN and Ni‐CeF3 dual heterointerfaces can effectively promote the transfer of OH− adsorption site from Ni to VN and optimize the adsorption energy of intermediate H respectively, which together accelerate the rate of the multi‐step hydrogen evolution reaction in alkaline solution and thus lead to a significantly improved HER performance compared to the pure Ni. Furthermore, the solar to hydrogen (STH) efficiency can reach 10.34%. This work provides an effective guide for the design of high‐efficiency multicomponent materials in the future.

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Section: Resultsmentioning

confidence: 93%

Construction of Nickel‐Based Dual Heterointerfaces towards Accelerated Alkaline Hydrogen Evolution via Boosting Multi‐Step Elementary Reaction

Zhou

Tao

et al. 2021

Adv Funct Materials

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“…71-0242). 37 A broad diffraction peak at 26° corresponds to the characteristic peak of carbon. No other impurity peaks are found, indicating that the carbon-based molybdenum carbide materials were successfully synthesized.…”

Section: Resultsmentioning

confidence: 99%

Engineering micro/nanostructures of Mo₂C/porous nanocarbon for enhanced hydrogen production

Liu

et al. 2023

New J. Chem.

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“…The Δ G H value of MoO 2 (−210) is 0.341 eV. Compared to MoO 2 (−210) and MoSi 2 (103), the MoO 2 (−210)/MoSi 2 (103) heterostructure has a lower Δ G H value of 0.148 eV, suggesting that the heterostructure is thermodynamically favorable in H atom adsorption; in other words, the heterointerface is a suitable active center for the HER. , …”

Section: Resultsmentioning

confidence: 99%

Self-Supported MoO₂/MoSi₂ Ceramic Electrode for High Current Density Hydrogen Evolution Reaction

Huang

Wang

et al. 2023

ACS Sustainable Chem. Eng.

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Ceramic electrodes are cost-effective and stable at high current densities. Thus, they are highly considered for industrial hydrogen production. In this study, a novel self-supported MoO2/MoSi2 ceramic electrode, with open finger-like holes and excellent electrochemical performance, was successfully prepared by phase-inversion, the shaping method of tape-casting, and hydrothermal treatment. The obtained MoO2/MoSi2 electrode has a lower overpotential than the Pt/C electrode at current densities greater than 330 and 410 mA cm–2 in an alkaline and acidic environment, respectively. Furthermore, the electrode exhibits excellent stability at 10–1000 mA cm–2 for 260 h in both alkaline and acidic solutions. Density functional theory calculations showed that the MoO2/MoSi2 heterostructure displays the lowest H adsorption free energy and the highest density of states around the Fermi level.

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Engineering nanointerface of molybdenum-based heterostructures to boost the electrocatalytic hydrogen evolution reaction

Cited by 18 publications

References 61 publications

Construction of Nickel‐Based Dual Heterointerfaces towards Accelerated Alkaline Hydrogen Evolution via Boosting Multi‐Step Elementary Reaction

Construction of Nickel‐Based Dual Heterointerfaces towards Accelerated Alkaline Hydrogen Evolution via Boosting Multi‐Step Elementary Reaction

Engineering micro/nanostructures of Mo₂C/porous nanocarbon for enhanced hydrogen production

Self-Supported MoO₂/MoSi₂ Ceramic Electrode for High Current Density Hydrogen Evolution Reaction

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Engineering nanointerface of molybdenum-based heterostructures to boost the electrocatalytic hydrogen evolution reaction

Cited by 18 publications

References 61 publications

Construction of Nickel‐Based Dual Heterointerfaces towards Accelerated Alkaline Hydrogen Evolution via Boosting Multi‐Step Elementary Reaction

Construction of Nickel‐Based Dual Heterointerfaces towards Accelerated Alkaline Hydrogen Evolution via Boosting Multi‐Step Elementary Reaction

Engineering micro/nanostructures of Mo2C/porous nanocarbon for enhanced hydrogen production

Self-Supported MoO2/MoSi2 Ceramic Electrode for High Current Density Hydrogen Evolution Reaction

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Product

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About

Engineering micro/nanostructures of Mo₂C/porous nanocarbon for enhanced hydrogen production

Self-Supported MoO₂/MoSi₂ Ceramic Electrode for High Current Density Hydrogen Evolution Reaction