A bifunctional catalyst for hydrogen evolution reaction: The interactive influences between CdS and MoS2 on photoelectrochemical activity

Jing, Jian; Guo, Liangliang; Li, Qian; Wang, Feng; Li, Zhilin; Liu, Jingjun; Jia, Yi

doi:10.1016/j.ijhydene.2015.01.075

Cited by 24 publications

(17 citation statements)

References 51 publications

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“…Heterostructures of CdS/MoS 2 have been shown in many studies − to offer enhanced photoelectrochemical (PEC) performance for the HER. Both MoS 2 and CdS share a hexagonal unit cell structure affording an intimate heterojunction, as elaborated further in what follows.…”

Section: Introductionmentioning

confidence: 99%

Electrosynthesis of CdS/MoS₂ Using Electrodeposited MoS_x: A Combined Voltammetry–Electrochemical Quartz Crystal Nanogravimetry Study

Rho

Sohn

Lee

et al. 2021

ACS Appl. Energy Mater.

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Here, we describe a strategy for preparing CdS/MoS 2 heterostructures using initially electrodeposited MoS x on a polycrystalline gold substrate. The excess sulfur intrinsic to the electrodeposited MoS 3 surface was derivatized with Cd to form spherical CdS/MoS 2 particles by judicious adjustment of the medium pH and interfacial electrochemistry. The progression of this conversion was monitored by a combination of cyclic/ linear sweep voltammetry coupled with electrochemical quartz crystal nanogravimetry. The electrodeposited MoS x and CdS/MoS 2 films were further characterized by scanning electron microscopy, energy-dispersive Xray analysis, laser Raman spectroscopy, and X-ray photoelectron spectroscopy. Heterojunction formation between MoS 2 and CdS particles was confirmed by high-resolution transmission electron microscopy as well as via Kelvin probe measurements of the contact potential differences, with and without the presence of CdS on the MoS 2 surface. The nonoptimized CdS/MoS 2 heterostructures showed improved photoelectrochemical response compared with CdS or MoS 2 for oxidation of sulfite species.

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Section: Introductionmentioning

confidence: 99%

Electrosynthesis of CdS/MoS₂ Using Electrodeposited MoS_x: A Combined Voltammetry–Electrochemical Quartz Crystal Nanogravimetry Study

Rho

Sohn

Lee

et al. 2021

ACS Appl. Energy Mater.

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“…[3][4] Under an external potential bias, the redox capability of MoS 2 can be enhanced to be effective used in photo-electrochemical cells. [5][6].…”

Section: Introductionmentioning

confidence: 99%

Hierarchical MoS2–rGO nanosheets with high MoS2 loading with enhanced electro-catalytic performance

Zhou

Han

Zhou

et al. 2015

Applied Surface Science

106

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“…1T‐MoS 2 with both metallic conductivity and abundant active sites should be an ideal cocatalyst for photocatalytic H 2 production. Furthermore, the intimate interfaces between the catalyst and cocatalyst also play a key role in enhancing H 2 production, as demonstrated by previous work . In addition, the one‐step in situ growth of 1T‐MoS 2 heterostructures by a bottom‐up method cannot be realized by chemically exfoliating 1T‐MoS 2 owing to the exfoliating process.…”

Section: Figurementioning

confidence: 92%

“…Furthermore, the intimate interfaces between the catalyst and cocatalyst also play ak ey role in enhancing H 2 production, as demonstrated by previous work. [11,12,[25][26][27] In addition, the one-step in situ growth of 1T-MoS 2 heterostructures by ab ottom-up methodc annotb er ealizedb yc hemically ex-foliating1 T-MoS 2 owing to the exfoliating process. Until now, the facile preparation of in situ formed junction heterostructure photocatalysts based on 1T-MoS 2 with enhanced photocatalytic activity throughs ynergistic regulation of the intimate nanojunction formed between the interfaces and fast electron transport in the metallic (octahedral) phase of MoS 2 is still ac hallenge.…”

mentioning

confidence: 99%

In situ Integration of a Metallic 1T‐MoS₂/CdS Heterostructure as a Means to Promote Visible‐Light‐Driven Photocatalytic Hydrogen Evolution

et al. 2016

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The replacement of expensive noble‐metals cocatalysts with inexpensive, earth‐abundant, metallic nonmetal materials in most semiconductor‐based photocatalytic systems is highly desirable. Herein, we report the fabrication of stable 1T‐MoS2 slabs in situ grown on CdS nanorods (namely, 1T‐MoS2@CdS) by using a solvothermal method. As demonstrated by ultrafast transient absorption spectroscopy, in combination with steady‐state and time‐resolved photoluminescence, the synergistic effects resulting from formation of the intimate nanojunction between the interfaces and effective electron transport in the metallic phase of 1T‐MoS2 largely contribute to boosting the photocatalytic activity of CdS. Notably, the heterostructure with an optimum loading of 0.2 wt % 1T‐MoS2 exhibits an almost 39‐fold enhancement in the photocatalytic activity relative to that exhibited by bare CdS. This work represents a step towards the in situ realization of a 1T‐phase MoS2‐based heterostructure as a promising cocatalyst with high performance and low cost.

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A bifunctional catalyst for hydrogen evolution reaction: The interactive influences between CdS and MoS2 on photoelectrochemical activity

Cited by 24 publications

References 51 publications

Electrosynthesis of CdS/MoS₂ Using Electrodeposited MoS_x: A Combined Voltammetry–Electrochemical Quartz Crystal Nanogravimetry Study

Electrosynthesis of CdS/MoS₂ Using Electrodeposited MoS_x: A Combined Voltammetry–Electrochemical Quartz Crystal Nanogravimetry Study

Hierarchical MoS2–rGO nanosheets with high MoS2 loading with enhanced electro-catalytic performance

In situ Integration of a Metallic 1T‐MoS₂/CdS Heterostructure as a Means to Promote Visible‐Light‐Driven Photocatalytic Hydrogen Evolution

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A bifunctional catalyst for hydrogen evolution reaction: The interactive influences between CdS and MoS2 on photoelectrochemical activity

Cited by 24 publications

References 51 publications

Electrosynthesis of CdS/MoS2 Using Electrodeposited MoSx: A Combined Voltammetry–Electrochemical Quartz Crystal Nanogravimetry Study

Electrosynthesis of CdS/MoS2 Using Electrodeposited MoSx: A Combined Voltammetry–Electrochemical Quartz Crystal Nanogravimetry Study

Hierarchical MoS2–rGO nanosheets with high MoS2 loading with enhanced electro-catalytic performance

In situ Integration of a Metallic 1T‐MoS2/CdS Heterostructure as a Means to Promote Visible‐Light‐Driven Photocatalytic Hydrogen Evolution

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Electrosynthesis of CdS/MoS₂ Using Electrodeposited MoS_x: A Combined Voltammetry–Electrochemical Quartz Crystal Nanogravimetry Study

Electrosynthesis of CdS/MoS₂ Using Electrodeposited MoS_x: A Combined Voltammetry–Electrochemical Quartz Crystal Nanogravimetry Study

In situ Integration of a Metallic 1T‐MoS₂/CdS Heterostructure as a Means to Promote Visible‐Light‐Driven Photocatalytic Hydrogen Evolution