A rapidly room-temperature-synthesized Cd/ZnS:Cu nanocrystal photocatalyst for highly efficient solar-light-powered CO2 reduction

Meng, Xianguang; Zuo, Guifu; Zong, Peixiao; Pang, Hong; Ren, Jian; Zeng, Xiongfeng; Liu, Shanshan; Shen, Yi; Zhou, Wei; Ye, Jinhua

doi:10.1016/j.apcatb.2018.05.066

Cited by 67 publications

(45 citation statements)

References 10 publications

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“…The fuel synthesis process is often called the reduction route because the chemical state of carbon is reduced to lower values in the products, such as CH 4 , carbon monoxide (CO), methanol, ethanol, formic acid, and other hydrocarbons. CO 2 reduction has received significant attention in the last decades because this technology can simultaneously alleviate the energy shortage and environmental deterioration …”

Section: Introductionmentioning

confidence: 99%

Coupling of Solar Energy and Thermal Energy for Carbon Dioxide Reduction: Status and Prospects

2020

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Enormous efforts have been devoted to the reduction of carbon dioxide (CO2) by utilizing various driving forces, such as heat, electricity, and radiation. However, the efficient reduction of CO2 is still challenging because of sluggish kinetics. Recent pioneering studies from several groups, including us, have demonstrated that the coupling of solar energy and thermal energy offers a novel and promising strategy to promote the activity and/or manipulate selectivity in CO2 reduction. Herein, we clarify the definition and principles of coupling solar energy and thermal energy, and comprehensively review the status and prospects of CO2 reduction by coupling solar energy and thermal energy. Catalyst design, reactor configuration, photo‐mediated activity/selectivity, and mechanism studies in photo‐thermo CO2 reduction will be emphasized. The aim of this Review is to promote understanding towards CO2 activation and provide guidelines for the design of new catalysts for the efficient reduction of CO2.

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Section: Introductionmentioning

confidence: 99%

Coupling of Solar Energy and Thermal Energy for Carbon Dioxide Reduction: Status and Prospects

2020

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“…In the past, for electrochemically reducing CO 2 to formate, various electrocatalysts, for example, Pb, Cd, Sn, In, and Co have been developed. [ 15–19 ] However, heavy metals (Pb and Cd) are very toxic and environmentally hazardous. Sn, In or Co‐based electrocatalysts show low current densities of <30 mA cm −2 and poor formate faradaic efficiency (FE) of <90%.…”

Section: Introductionmentioning

confidence: 99%

Monoclinic Scheelite Bismuth Vanadate Derived Bismuthene Nanosheets with Rapid Kinetics for Electrochemically Reducing Carbon Dioxide to Formate

Liu

et al. 2020

Adv Funct Materials

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Electrochemical reduction of CO2 to high‐value chemical feedstocks, such as formate, is one of the most promising ways to alleviate the greenhouse effect. Unfortunately, the exploration of electrocatalysts with high activity and selectivity over a wide potential window (especially low potential for high current density) still remains a grand challenge. In this study, the fabrication of bismuthene nanosheets using an in‐situ electrochemical transformation strategy of monoclinic scheelite BiVO4 flakes is demonstrated. Catalyzing the CO2 electroreduction in 1 m KHCO3 aqueous solution, the bismuthene nanosheets exhibit a dramatically high formate Faradaic efficiency (FE) of ≈97.4% and a very large current density of −105.4 mA cm−2 at −1.0 V versus reversible hydrogen electrode. Significantly, over a record wide potential window of 750 mV from the initial −0.65 V to the applied minimum −1.4 V, the formate FEs of the bismuthene nanosheets are always higher than 90%, outperforming state‐of‐the‐art electrocatalysts. Both experimental and theoretical investigations reveal that, in comparison with •COOH and H• intermediates, the bismuthene nanosheets preferentially promote fast reaction kinetics towards HCOO•, which eventually accelerates the production of formate.

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“…On this basis, Cu + doped ZnS colloid with Cd 2+ co‐catalyst providing surficial active trap was reasonably designed to be a promising catalyst to maximize light utilization via heating‐free synthesis method. [ 83 ] The coupling of Cu + and ZnS/Cd not only gave rise to the reduced bandgap and boosted photoabsorption, but also created surface active S vacancies to increase surface charge density, which led to a high photocatalytic efficiency for CO 2 redcution with a selectivity of HCOOH of up to 99% ( Figure a–g). Additionally, it was found that the hydrothermal method was more suitable for the preparation of highly photoactive ZnS nanoparticles compared to the precipitation method and the ion exchange method, and the extremely high performance for the reduction of CO 2 to methyl formate was shown to the ZnS composite with an optimal Ni 2+ doping amount of 0.3 wt% in methanol driven by UV light.…”

Section: Binary Metal Sulfide Photocatalystsmentioning

confidence: 99%

Nanostructured Metal Sulfides: Classification, Modification Strategy, and Solar‐Driven CO₂ Reduction Application

Wang

Lin

Tian

et al. 2020

Adv Funct Materials

265

170

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Solar‐driven conversion of CO2 into high value‐added fuels is expected to be an environmental‐friendly and sustainable approach for relieving the greenhouse gas effect and countering energy crisis. Metal sulfide semiconductors with wide photoresponsive range and favorable band structures are suitable photocatalysts for CO2 photoreduction. This review summarizes the recent progress on metal sulfide semiconductors for photocatalytic CO2 reduction. First, the fundamentals, mechanisms and some principles, like product selectivity, of photocatalytic CO2 reduction are introduced. Then, according to the elemental composition, the metal sulfide photocatalysts applied for CO2 reduction are classified into binary (CdS, ZnS, MoS2, SnS2, Bi2S3, In2S3,Cu2S, NiS/NiS2, and CoS2), ternary (ZnIn2S4, CdIn2S4, CuInS2, Cu3SnS4, and CuGaS2), and quaternary (Cu2ZnSnS4) systems, in which their crystal structures, photochemical characteristics, and photocatalytic CO2 reduction applications are systematically demonstrated. Especially, the diverse modification strategies for improving the activity and product selectivity of photocatalytic CO2 reduction on these metal sulfides are summarized. Finally, the current challenges and future directions for the development of metal sulfide photocatalysts for CO2 reduction are proposed. This review is expected to serve as a powerful reference for exploiting high‐efficiency metal sulfide photocatalysts for CO2 conversion and furthering related mechanism understanding.

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A rapidly room-temperature-synthesized Cd/ZnS:Cu nanocrystal photocatalyst for highly efficient solar-light-powered CO2 reduction

Cited by 67 publications

References 10 publications

Coupling of Solar Energy and Thermal Energy for Carbon Dioxide Reduction: Status and Prospects

Coupling of Solar Energy and Thermal Energy for Carbon Dioxide Reduction: Status and Prospects

Monoclinic Scheelite Bismuth Vanadate Derived Bismuthene Nanosheets with Rapid Kinetics for Electrochemically Reducing Carbon Dioxide to Formate

Nanostructured Metal Sulfides: Classification, Modification Strategy, and Solar‐Driven CO₂ Reduction Application

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A rapidly room-temperature-synthesized Cd/ZnS:Cu nanocrystal photocatalyst for highly efficient solar-light-powered CO2 reduction

Cited by 67 publications

References 10 publications

Coupling of Solar Energy and Thermal Energy for Carbon Dioxide Reduction: Status and Prospects

Coupling of Solar Energy and Thermal Energy for Carbon Dioxide Reduction: Status and Prospects

Monoclinic Scheelite Bismuth Vanadate Derived Bismuthene Nanosheets with Rapid Kinetics for Electrochemically Reducing Carbon Dioxide to Formate

Nanostructured Metal Sulfides: Classification, Modification Strategy, and Solar‐Driven CO2 Reduction Application

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Nanostructured Metal Sulfides: Classification, Modification Strategy, and Solar‐Driven CO₂ Reduction Application