CdS@Ni3S2 core–shell nanorod arrays on nickel foam: a multifunctional catalyst for efficient electrochemical catalytic, photoelectrochemical and photocatalytic H2 production reaction

Guan, Haojian; Zhang, Shengsen; Cai, Xin; Gao, Qiongzhi; Yu, Xiaoyuan; Zhou, Xiaosong; Peng, Feng; Fang, Yueping; Yang, Siyuan

doi:10.1039/c8ta08837c

Cited by 75 publications

(29 citation statements)

References 77 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among the narrow band gap semiconductors, cadmium based chalcogenides showed effective photocatalytic‐to‐hydrogen fuel generation compared to metal oxides as it possess high photo absorption in visible spectrum . In this line, cadmium selenide (CdSe) is a promising visible light driven semiconductor photocatalyst material have suitable energy gap and band edge potentials for H 2 generation via water splitting .…”

Section: Introductionmentioning

confidence: 99%

“…However, in view of improving the photocharge carrier separation at CdSe/electrolyte interfaces, co‐catalyst or secondary photo absorbers were randomly attached to CdSe surface. For instance, Pt deposited CdSe/CdS quantum dots nanocomposites, CdSe−Au hybrid nano‐dumbbells, CdSe/MoS 2 , CdS/CdSe, TiO 2 /CdS/CdSe, CdSe/ZnS and CdSe−Ni 2 S 3 . Besides improved photoabsorption in wide spectrum, poor charge separation properties of these materials, showed inadequate stability under prolonged light irradiation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Retorting Photocorrosion and Enhanced Charge Carrier Separation at CdSe Nanocapsules by Chemically Synthesized TiO₂ Shell for Photocatalytic Hydrogen Fuel Generation

et al. 2020

View full text Add to dashboard Cite

Metal chalcogenide‐based semiconductor nanostructures are promising candidates for photocatalytic or photoelectrocatalytic hydrogen generation. In order to protect CdSe from photocorrosion, a layer of TiO2 wrapped (shell) onto CdSe (core) nanocapsule via the post‐synthesis process. The morphology studies confirm that a thin crystalline TiO2 shell (3–8 nm) wrapped in all the three directions onto CdSe core and thickness of the shell can be controlled through modulating the titania precursor concentration. The feasibility of pristine CdSe nanocapsules and CdSe@TiO2 in transforming visible light to hydrogen conversion was tested through photocatalysis reaction. The CdSe@TiO2 nanocapsules generated a four‐fold high rate of hydrogen gas (21 mmol.h−1.g−1cat) than pristine CdSe. In order to understand the role of shell@core, we have studied the photoelectrochemical and impedance analysis. The CdSe@TiO2 nanocapsules showed higher photoelectric current generation and lower charge transfer resistance at electrode/electrolyte interfaces compared to pristine CdSe. These studies endorse that chemically synthesized crystalline TiO2 shell played a multifunctional role in (a) surface passivation from photocorrosion, (b) promoting photocharge carrier separation via tunneling process between CdSe and TiO2 interface. As a result, CdSe@TiO2 nanocapsules showed a high conversion efficiency of 12.9 % under visible light irradiation (328 mW.cm−2) and a TOF of 0.05018 s−1.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Retorting Photocorrosion and Enhanced Charge Carrier Separation at CdSe Nanocapsules by Chemically Synthesized TiO₂ Shell for Photocatalytic Hydrogen Fuel Generation

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Noble metal (e.g., Pt [372]) cocatalyst are usually used for HER and noble metal oxides (e.g., IrO 2 [373,374], RuO 2 [374,375]) are used for water oxidation reactions [376]. However, due to the high cost and rarity of noble metals, researchers focus on noble metal-free cocatalyst, including cobalt [370,[377][378][379] and nickel-based compounds [380][381][382][383][384].…”

Section: Modification Techniquesmentioning

confidence: 99%

Green Synthetic Fuels: Renewable Routes for the Conversion of Non-Fossil Feedstocks into Gaseous Fuels and Their End Uses

et al. 2020

View full text Add to dashboard Cite

Innovative renewable routes are potentially able to sustain the transition to a decarbonized energy economy. Green synthetic fuels, including hydrogen and natural gas, are considered viable alternatives to fossil fuels. Indeed, they play a fundamental role in those sectors that are difficult to electrify (e.g., road mobility or high-heat industrial processes), are capable of mitigating problems related to flexibility and instantaneous balance of the electric grid, are suitable for large-size and long-term storage and can be transported through the gas network. This article is an overview of the overall supply chain, including production, transport, storage and end uses. Available fuel conversion technologies use renewable energy for the catalytic conversion of non-fossil feedstocks into hydrogen and syngas. We will show how relevant technologies involve thermochemical, electrochemical and photochemical processes. The syngas quality can be improved by catalytic CO and CO2 methanation reactions for the generation of synthetic natural gas. Finally, the produced gaseous fuels could follow several pathways for transport and lead to different final uses. Therefore, storage alternatives and gas interchangeability requirements for the safe injection of green fuels in the natural gas network and fuel cells are outlined. Nevertheless, the effects of gas quality on combustion emissions and safety are considered.

show abstract

“…Then, as the solubility product constant (Ksp) of CdS (8.0 10 À27 )i sm uch smaller than that of ZnS (2.9 10 À25 ), the active S 2 + species preferentially reacts with Cd 2 + ions forming CdS nanorod arrays, with the presence of glutathionec apping agent. [22,23] Moreover,w ith the consuming of Cd 2 + and the growth of CdS nanorods, Zn 2 + ions are adsorbed onto the top surface of CdS nanorods, due to the present of cation vacancies on the high energy CdS surfaces. Finally,a ccording to the Frank-van der Merwe hetero epitaxially growth mechanism, [24] the ZnS caps were in situ epitaxially grown on the top surface of CdS nanorods as shown in the contrast interface area in the HRTEM image.…”

Section: Morphologys Tructure and Composition Of The Samplesmentioning

confidence: 99%

Ternary Monolithic ZnS/CdS/rGO Photomembrane with Desirable Charge Separation/Transfer Routes for Effective Photocatalytic and Photoelectrochemical Hydrogen Generation

Zhang

Huo

Yang

et al. 2019

Chemistry An Asian Journal

Self Cite

View full text Add to dashboard Cite

Highly efficient and easy recyclable monolithic photocatalysts with ideal separation/transport route for photogenerated charge carriers are much desired. In this work, a ZnO seed‐induced growth approach is developed to fabricate a ternary monolithic photomembrane, that is, ZnS/CdS heterojunction nanorods in situ grow into the interspaces of multilayer reduced graphene oxide (rGO) sheets (denoted as ZnS/CdS/rGO). The monolithic ZnS/CdS/rGO photomembrane can serve as an efficient visible‐light photoactive membrane for photocatalytic (PC) or photoelectrochemical (PEC) hydrogen generation. The fast electron transport of 1D CdS nanorods, the excellent electronic conductivity of multilayer stacked rGO sheets, the intense visible‐light absorption of CdS, the unique hierarchical structure, and double heterojunctions (ZnS/CdS and CdS/rGO) efficiently boost the photogenerated electron‐hole pairs separation and transfer across the interfacial domain of the photomembrane under visible‐light irradiation. Furthermore, the superior stability and reusability of the photomembrane is achieved by the ideal process of photogenerated electron‐hole pair separation/transfer, i.e., holes transfer to ZnS and electrons transfer to rGO to inhibit CdS from photocorrosion.

show abstract

CdS@Ni₃S₂ core–shell nanorod arrays on nickel foam: a multifunctional catalyst for efficient electrochemical catalytic, photoelectrochemical and photocatalytic H₂ production reaction

Abstract: Shell thickness controllable CdS@Ni3S2 core@shell arrays for electrochemical catalytic (EC), photoelectrochemical (PEC) and photocatalytic (PC) water splitting.

Cited by 75 publications

References 77 publications

Retorting Photocorrosion and Enhanced Charge Carrier Separation at CdSe Nanocapsules by Chemically Synthesized TiO₂ Shell for Photocatalytic Hydrogen Fuel Generation

Retorting Photocorrosion and Enhanced Charge Carrier Separation at CdSe Nanocapsules by Chemically Synthesized TiO₂ Shell for Photocatalytic Hydrogen Fuel Generation

Green Synthetic Fuels: Renewable Routes for the Conversion of Non-Fossil Feedstocks into Gaseous Fuels and Their End Uses

Ternary Monolithic ZnS/CdS/rGO Photomembrane with Desirable Charge Separation/Transfer Routes for Effective Photocatalytic and Photoelectrochemical Hydrogen Generation

Contact Info

Product

Resources

About

CdS@Ni3S2 core–shell nanorod arrays on nickel foam: a multifunctional catalyst for efficient electrochemical catalytic, photoelectrochemical and photocatalytic H2 production reaction

Abstract: Shell thickness controllable CdS@Ni3S2 core@shell arrays for electrochemical catalytic (EC), photoelectrochemical (PEC) and photocatalytic (PC) water splitting.

Cited by 75 publications

References 77 publications

Retorting Photocorrosion and Enhanced Charge Carrier Separation at CdSe Nanocapsules by Chemically Synthesized TiO2 Shell for Photocatalytic Hydrogen Fuel Generation

Retorting Photocorrosion and Enhanced Charge Carrier Separation at CdSe Nanocapsules by Chemically Synthesized TiO2 Shell for Photocatalytic Hydrogen Fuel Generation

Green Synthetic Fuels: Renewable Routes for the Conversion of Non-Fossil Feedstocks into Gaseous Fuels and Their End Uses

Ternary Monolithic ZnS/CdS/rGO Photomembrane with Desirable Charge Separation/Transfer Routes for Effective Photocatalytic and Photoelectrochemical Hydrogen Generation

Contact Info

Product

Resources

About

CdS@Ni₃S₂ core–shell nanorod arrays on nickel foam: a multifunctional catalyst for efficient electrochemical catalytic, photoelectrochemical and photocatalytic H₂ production reaction

Retorting Photocorrosion and Enhanced Charge Carrier Separation at CdSe Nanocapsules by Chemically Synthesized TiO₂ Shell for Photocatalytic Hydrogen Fuel Generation

Retorting Photocorrosion and Enhanced Charge Carrier Separation at CdSe Nanocapsules by Chemically Synthesized TiO₂ Shell for Photocatalytic Hydrogen Fuel Generation