Photocatalytic CO<sub>2</sub> conversion: What can we learn from conventional CO<sub>x</sub> hydrogenation?

Kong, Tingting; Jiang, Yawen; Xiong, Yujie

doi:10.1039/c9cs00920e

Cited by 314 publications

(179 citation statements)

References 49 publications

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“…Although artificial photosynthesis has witnessed its blossom in the last decade, it still hits bottlenecks in reaction activity and especially the product selectivity, as compared with thermocatalytic and electrocatalytic CO 2 hydrogenation. Xiong et al 27 reported an overview titled “Photocatalytic CO 2 conversion: what we can learn from conventional CO x hydrogenation?” to ascertain the inner connection of photocatalysis to conventional catalytic systems, with a focus on how to design catalytically active sites that is deficient in the literature. On the other hand, the photocatalytic efficiency is significantly dependent on the charge separation and transfer efficiency as well as the carrier lifespan.…”

Section: Discussionmentioning

confidence: 99%

“…In contrast, converting CO 2 into highly value‐added chemical fuels makes more sense. Thus, scientists have transferred their research focus to artificial conversion of CO 2 and developed some major strategies, including conventional thermochemical, 14‐19 electrochemical, 20‐24 and photocatalytic methods 25‐34 . In the last decade, thermochemical conversion of CO 2 has witnessed a significant progress in both product selectivity and productivity (turnover numbers, TONs).…”

Section: Introductionmentioning

confidence: 99%

“…In general, these methods all aim at either improving the separation efficiency of photogenerated electron/hole pairs, namely prolonging the lifespan of electrons for CO 2 reduction, or creating more catalytically active sites. Recently, a review on how to design catalytically active sites in terms of conventional CO x hydrogenation has been reported, which highlights the importance of catalytically active sites to promote the activity and selectivity of CO 2 reduction 27 . On the other hand, the photogenerated electrons used for CO 2 reduction and holes for water oxidation are easily recombined, exerting profound impact on the product yield and selectivity.…”

Section: Introductionmentioning

confidence: 99%

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Engineering approach toward catalyst design for solar photocatalytic CO ₂ reduction: A critical review

Zhang

et al. 2021

Int J Energy Res

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Summary Solar‐driven converting CO2 to value‐added chemicals can not only address the ever‐growing energy crisis, but also simultaneously mitigate CO2 emission. Although much progress has been made in the last decade, it still remains great challenge to achieve the efficient reduction of CO2 with desirable productivity and high product selectivity because CO2 is a thermodynamically stable and inert molecule with large bond energy. Design and synthesis of efficient catalyst play a pivotal role in promoting the activity and selectivity of photocatalytic CO2 reduction. Apart from the active sites engineering, manipulation of the charge separation and light harvesting efficiency or prolonging the lifetime of photogenerated carriers also greatly matters. Consequently, this review summarizes recent advances in photocatalyst design for CO2 conversion from two major aspects, namely active sites engineering and carriers lifespan prolonging. Firstly, we sort out the fundamental principles and merits of artificial photosynthesis in order to provide readers with a current snapshot of this rapidly developed field. Subsequently, various catalyst engineering strategies, including doping, alloying, Z‐scheme structure construction, are discussed in detail. Finally, some challenging issues as well as insights into the future development of artificial photosynthesis are presented.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Engineering approach toward catalyst design for solar photocatalytic CO ₂ reduction: A critical review

Zhang

et al. 2021

Int J Energy Res

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“…Both of the two paths will attack the CO bond by protons, while the carbon or mixed coordination mode are likely to break a CO bond directly in carbene pathway, while the CO 2 ·− adopted oxygen coordination mode will proceed formaldehyde pathway. [ 41,42 ]…”

Section: Fundamentals and Mechanisms Of Photocatalytic Co2 Reductionmentioning

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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“…The conversion of CO 2 and renewable H 2 into fuels and feedstock chemicals through heterogeneous photocatalysis is a promising solution to sustainable energy security and global climate change [1][2][3][4][5][6][7][8]. Among different solar-powered CO 2 hydrogenation processes, photothermal reverse water gas shift (RWGS) catalysis features the operation under ambient conditions and powered solely by sunlight to convert CO 2 into CO, an important feedstock for the chemical industry [9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

A core-shell catalyst design boosts the performance of photothermal reverse water gas shift catalysis

Lou

Zhu

et al. 2021

Sci. China Mater.

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Photothermal reverse water gas shift (RWGS) catalysis holds promise for efficient conversions of greenhouse gas CO 2 and renewable H 2 , powered solely by sunlight, into CO, an important feedstock for the chemical industry. However, the performance of photothermal RWGS catalysis over existing supported catalysts is limited by the balance between the catalyst loading and dispersity, as well as stability against sintering. Herein, we report a core-shell strategy for the design of photothermal catalysts, by using Ni 12 P 5 as an example, with simultaneously strong light absorption ability, high dispersity and stability. The core-shell structured Ni 12 P 5 @SiO 2 catalyst with a relatively small Ni 12 P 5 particle size of 15 nm at a high Ni 12 P 5 loading of 30 wt% exhibits improved activity, nearly 100% CO selectivity, and superior stability in photothermal RWGS catalysis, particularly under intense illuminations. Our study clearly reveals the effectiveness of the core-shell strategy in breaking the limitation of supported catalysts and boosting the performance of photothermal CO 2 catalysis.

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Photocatalytic CO₂ conversion: What can we learn from conventional CO_x hydrogenation?

Abstract: This tutorial review elucidates how to design catalytically active sites for efficient and highly selective photocatalytic reduction of CO2 by learning from conventional CO2 hydrogenation and syngas conversion.

Cited by 314 publications

References 49 publications

Engineering approach toward catalyst design for solar photocatalytic CO ₂ reduction: A critical review

Engineering approach toward catalyst design for solar photocatalytic CO ₂ reduction: A critical review

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

A core-shell catalyst design boosts the performance of photothermal reverse water gas shift catalysis

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Photocatalytic CO2 conversion: What can we learn from conventional COx hydrogenation?

Abstract: This tutorial review elucidates how to design catalytically active sites for efficient and highly selective photocatalytic reduction of CO2 by learning from conventional CO2 hydrogenation and syngas conversion.

Cited by 314 publications

References 49 publications

Engineering approach toward catalyst design for solar photocatalytic CO 2 reduction: A critical review

Engineering approach toward catalyst design for solar photocatalytic CO 2 reduction: A critical review

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

A core-shell catalyst design boosts the performance of photothermal reverse water gas shift catalysis

Contact Info

Product

Resources

About

Photocatalytic CO₂ conversion: What can we learn from conventional CO_x hydrogenation?

Engineering approach toward catalyst design for solar photocatalytic CO ₂ reduction: A critical review

Engineering approach toward catalyst design for solar photocatalytic CO ₂ reduction: A critical review

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