Acetate-assistant efficient cation-exchange of halide perovskite nanocrystals to boost the photocatalytic CO2 reduction

Cheng, Jialin; Mu, Yan‐Fei; Wu, Liyuan; Liu, Zhaolei; Su, Ke; Dong, Guang-Xing; Zhang, Min; Lu, Tong‐Bu

doi:10.1007/s12274-021-3775-3

Cited by 28 publications

(31 citation statements)

References 51 publications

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“…[ 50 ] The in situ doping of metal ions can cause bulk doping in PVKs, which can increase the charge carrier recombination. [ 51 ] To overcome these problems, Cheng et al partially replaced Br − with acetate (Ac − ) to efficiently exchange B‐site with Ni 2+ ions, that is, Ni‐coated CsPbBr 3− x Ac x (Ni:CsPbBr 3− x Ac x ) could be obtained to enhance the photocatalytic CO 2 reduction activity. [ 51 ] The weaker Pb—Ac bond than the Pb—Br bond facilitated the cation exchange and led to higher Ni content in Ni:CsPbBr 3− x Ac x .…”

Section: Methods To Improve Photoelectrochemical Performancementioning

confidence: 99%

“…[ 51 ] To overcome these problems, Cheng et al partially replaced Br − with acetate (Ac − ) to efficiently exchange B‐site with Ni 2+ ions, that is, Ni‐coated CsPbBr 3− x Ac x (Ni:CsPbBr 3− x Ac x ) could be obtained to enhance the photocatalytic CO 2 reduction activity. [ 51 ] The weaker Pb—Ac bond than the Pb—Br bond facilitated the cation exchange and led to higher Ni content in Ni:CsPbBr 3− x Ac x . Under a 100 mW cm −2 illumination with a 400 nm filter, in the CO 2 and H 2 O vapor environment, the CsPbBr 2.77 Ac 0.23 and (0.59%) Ni:CsPbBr 2.77 Ac 0.23 yielded 10.87 μmol g −1 h −1 CO and 44.09 μmol g −1 h −1 CO, respectively.…”

Section: Methods To Improve Photoelectrochemical Performancementioning

confidence: 99%

“…[50] The in situ doping of metal ions can cause bulk doping in PVKs, which can increase the charge carrier recombination. [51] To overcome these problems, Cheng et al partially replaced Br À with acetate (Ac À ) to efficiently exchange B-site with Ni 2þ ions, that is, Ni-coated CsPbBr 3Àx Ac x (Ni:CsPbBr 3Àx Ac x ) could be Reproduced with permission. [47] Copyright 2019, American Chemical Society.…”

Section: Mix-component Dopingmentioning

confidence: 99%

“…obtained to enhance the photocatalytic CO 2 reduction activity. [51] The weaker Pb-Ac bond than the Pb-Br bond facilitated the cation exchange and led to higher Ni content in Ni: CsPbBr 3Àx Ac x . Under a 100 mW cm À2 illumination with a 400 nm filter, in the CO 2 and H 2 O vapor environment, the CsPbBr 2.77 Ac 0.23 and (0.59%) Ni:CsPbBr 2.77 Ac 0.23 yielded 10.87 μmol g À1 h À1 CO and 44.09 μmol g À1 h À1 CO, respectively.…”

Section: Mix-component Dopingmentioning

confidence: 99%

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Tailoring Inorganic Halide Perovskite Photocatalysts toward Carbon Dioxide Reduction

Zhang

Tang

et al. 2022

Solar RRL

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In recent years, photocatalytic carbon dioxide reduction has emerged as an attractive strategy to settle the global warming and energy crisis by converting CO2 into valuable chemicals utilizing solar energy. All‐inorganic halide perovskites (PVKs), as a class of promising light‐harvesting materials with outstanding optoelectronic properties and considerable stabilities, have received dramatic attention in the field of photocatalytic CO2 reduction reaction (CO2RR). In this review, the recent progress of PVK catalysts for CO2RR is systematically summarized and evaluated according to the modification strategies and their mechanisms. The working principles of CO2RR are first introduced. The main strategies for improving the photoelectrochemical performance are then discussed and their recent developments are summarized. Finally, the current challenges, including instability, charge recombination, and insufficient active sites, and future research opportunities for further development are addressed.

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Section: Methods To Improve Photoelectrochemical Performancementioning

confidence: 99%

Section: Methods To Improve Photoelectrochemical Performancementioning

confidence: 99%

“…[50] The in situ doping of metal ions can cause bulk doping in PVKs, which can increase the charge carrier recombination. [51] To overcome these problems, Cheng et al partially replaced Br À with acetate (Ac À ) to efficiently exchange B-site with Ni 2þ ions, that is, Ni-coated CsPbBr 3Àx Ac x (Ni:CsPbBr 3Àx Ac x ) could be Reproduced with permission. [47] Copyright 2019, American Chemical Society.…”

Section: Mix-component Dopingmentioning

confidence: 99%

Section: Mix-component Dopingmentioning

confidence: 99%

See 2 more Smart Citations

Tailoring Inorganic Halide Perovskite Photocatalysts toward Carbon Dioxide Reduction

Zhang

Tang

et al. 2022

Solar RRL

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“…[ 6,7 ] In recent years, various kinds of perovskite photocatalysts have been developed, and they have exhibited great potential in photocatalysis. [ 8–31 ] However, the current perovskite photocatalytic systems generally have severe charge recombination. [ 22 ] The undesired charge recombination largely limits the transfer efficiency of the photogenerated charge carriers, which becomes the bottleneck in the development of the perovskite photocatalysts.…”

Section: Introductionmentioning

confidence: 99%

Mn‐Doped Perovskite Nanocrystals for Photocatalytic CO₂ Reduction: Insight into the Role of the Charge Carriers with Prolonged Lifetime

et al. 2022

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As an emerged photocatalyst, perovskites have attracted enormous interest in photocatalysis due to their excellent photoelectronic properties. However, most of the photoexcited electron–hole pairs recombine together before they reach the surface of perovskite for photocatalysis. The undesired charge recombination would compete with the surface photocatalytic reaction. Hence, the regulation of charge carriers is essential for improving the photocatalytic performance of perovskites. Herein, the charge transfer dynamics by doping Mn2+ in CsPbCl3 perovskite nanocrystals (NCs) is manipulated and the role of the charge carriers with a prolonged lifetime in photocatalysis is investigated. The photogenerated charge carriers with a prolonged lifetime at both Mn2+ dopants and conduction band (CB) endow Mn:CsPbCl3 NCs with an enhanced photocatalytic activity toward CO2 reduction. The doping strategy provides us with a powerful tool to regulate the charge transfer dynamics in perovskite NCs for photocatalysis. It is believed that the long‐lived charge carriers in perovskite NCs have great potential in promoting charge separation and suppressing charge recombination in solar‐to‐fuel conversions.

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Stabilization and Performance Enhancement Strategies for Halide Perovskite Photocatalysts

et al. 2022

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Solar‐energy‐powered photocatalytic fuel production and chemical synthesis are widely recognized as viable technological solutions for a sustainable energy future. However, the requirement of high‐performance photocatalysts is a major bottleneck. Halide perovskites, a category of diversified semiconductor materials with suitable energy‐band‐enabled high‐light‐utilization efficiencies, exceptionally long charge‐carrier‐diffusion‐length‐facilitated charge transport, and readily tailorable compositional, structural, and morphological properties, have emerged as a new class of photocatalysts for efficient hydrogen evolution, CO2 reduction, and various organic synthesis reactions. Despite the noticeable progress, the development of high‐performance halide perovskite photocatalysts (HPPs) is still hindered by several key challenges: the strong ionic nature and high hydrolysis tendency induce instability and an unsatisfactory activity due to the need for a coactive component to realize redox processes. Herein, the recently developed advanced strategies to enhance the stability and photocatalytic activity of HPPs are comprehensively reviewed. The widely applicable stability enhancement strategies are first articulated, and the activity improvement strategies for fuel production and chemical synthesis are then explored. Finally, the challenges and future perspectives associated with the application of HPPs in efficient production of fuels and value‐added chemicals are presented, indicating the irreplaceable role of the HPPs in the field of photocatalysis.

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Acetate-assistant efficient cation-exchange of halide perovskite nanocrystals to boost the photocatalytic CO2 reduction

Cited by 28 publications

References 51 publications

Tailoring Inorganic Halide Perovskite Photocatalysts toward Carbon Dioxide Reduction

Tailoring Inorganic Halide Perovskite Photocatalysts toward Carbon Dioxide Reduction

Mn‐Doped Perovskite Nanocrystals for Photocatalytic CO₂ Reduction: Insight into the Role of the Charge Carriers with Prolonged Lifetime

Stabilization and Performance Enhancement Strategies for Halide Perovskite Photocatalysts

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Acetate-assistant efficient cation-exchange of halide perovskite nanocrystals to boost the photocatalytic CO2 reduction

Cited by 28 publications

References 51 publications

Tailoring Inorganic Halide Perovskite Photocatalysts toward Carbon Dioxide Reduction

Tailoring Inorganic Halide Perovskite Photocatalysts toward Carbon Dioxide Reduction

Mn‐Doped Perovskite Nanocrystals for Photocatalytic CO2 Reduction: Insight into the Role of the Charge Carriers with Prolonged Lifetime

Stabilization and Performance Enhancement Strategies for Halide Perovskite Photocatalysts

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Product

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Mn‐Doped Perovskite Nanocrystals for Photocatalytic CO₂ Reduction: Insight into the Role of the Charge Carriers with Prolonged Lifetime