Multichannel‐Improved Charge‐Carrier Dynamics in Well‐Designed Hetero‐nanostructural Plasmonic Photocatalysts toward Highly Efficient Solar‐to‐Fuels Conversion

Zhang, Zhenyi; Huang, Yingzhou; Liu, Kuichao; Guo, Lijun; Yuan, Qing; Dong, Bo

doi:10.1002/adma.201502203

Cited by 257 publications

(125 citation statements)

References 75 publications

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“…This H 2 evolution amount is about 3.5 times higher than the H 2 evolution of pure W 18 O 49 NWs and even 35 times higher than the H 2 evolution of single BH 3 NH 3 hydrolysis. Meanwhile, the apparent quantum efficiency is comparable to the corresponding values obtained in other visible‐light photocatalysts 40, 41, 42. This implies that the upconversion NPs play a central role on the enhanced catalytic activity of the H 2 evolution.…”

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confidence: 76%

Near‐Infrared‐Plasmonic Energy Upconversion in a Nonmetallic Heterostructure for Efficient H₂ Evolution from Ammonia Borane

et al. 2018

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Plasmonic metal nanostructures have been widely used to enhance the upconversion efficiency of the near‐infrared (NIR) photons into the visible region via the localized surface plasmon resonance (LSPR) effect. However, the direct utilization of low‐cost nonmetallic semiconductors to both concentrate and transfer the NIR‐plasmonic energy in the upconversion system remains a significant challenge. Here, a fascinating process of NIR‐plasmonic energy upconversion in Yb3+/Er3+‐doped NaYF4 nanoparticles (NaYF4:Yb‐Er NPs)/W18O49 nanowires (NWs) heterostructures, which can selectively enhance the upconversion luminescence by two orders of magnitude, is demonstrated. Combined with theoretical calculations, it is proposed that the NIR‐excited LSPR of W18O49 NWs is the primary reason for the enhanced upconversion luminescence of NaYF4:Yb‐Er NPs. Meanwhile, this plasmon‐enhanced upconversion luminescence can be partly absorbed by the W18O49 NWs to re‐excite its higher energy LSPR, thus leading to the selective enhancement of upconversion luminescence for the NaYF4:Yb‐Er/W18O49 heterostructures. More importantly, based on this process of plasmonic energy transfer, an NIR‐driven catalyst of NaYF4:Yb‐Er NPs@W18O49 NWs quasi‐core/shell heterostructure, which exhibits a ≈35‐fold increase in the catalytic H2 evolution from ammonia borane (BH3NH3) is designed and synthesized. This work provides insight on the development of nonmetallic plasmon‐sensitized optical materials that can potentially be applied in photocatalysis, optoelectronic, and photovoltaic devices.

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confidence: 76%

Near‐Infrared‐Plasmonic Energy Upconversion in a Nonmetallic Heterostructure for Efficient H₂ Evolution from Ammonia Borane

et al. 2018

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“…TiO 2 is a common component of many heterostructures. Dong and co‐workers described a hierarchical assembly of ultrathin ZnIn 2 S 4 nanosheets on TiO 2 electrospun nanofibers (Figure 13b–d) 188. These two components had low lattice mismatch and suitable band alignment to form type II heterostructure.…”

Section: Photocatalytic Materials For Co2 Reductionmentioning

confidence: 99%

“…Copyright 2017, Elsevier. b) SEM image of ZnIn 2 S 4 /TiO 2 ; c) comparison of CH 4 yield from photocatalytic CO 2 reduction on 1) ZnIn 2 S 4 , 2) TiO 2 , 3) ZnIn 2 S 4 /TiO 2 , 4) Au/ZnIn 2 S 4 /TiO 2 , and 5) Ag/ZnIn 2 S 4 /TiO 2 after UV–vis irradiation for 4 h. Reproduced with permission 188. d) Proposed VB and CB alignment for the anatase/rutile interface.…”

Section: Photocatalytic Materials For Co2 Reductionmentioning

confidence: 99%

CO₂ Reduction: From the Electrochemical to Photochemical Approach

et al. 2017

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Increasing CO2 concentration in the atmosphere is believed to have a profound impact on the global climate. To reverse the impact would necessitate not only curbing the reliance on fossil fuels but also developing effective strategies capture and utilize CO2 from the atmosphere. Among several available strategies, CO2 reduction via the electrochemical or photochemical approach is particularly attractive since the required energy input can be potentially supplied from renewable sources such as solar energy. In this Review, an overview on these two different but inherently connected approaches is provided and recent progress on the development, engineering, and understanding of CO2 reduction electrocatalysts and photocatalysts is summarized. First, the basic principles that govern electrocatalytic or photocatalytic CO2 reduction and their important performance metrics are discussed. Then, a detailed discussion on different CO2 reduction electrocatalysts and photocatalysts as well as their generally designing strategies is provided. At the end of this Review, perspectives on the opportunities and possible directions for future development of this field are presented.

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“…Similar cases were found in the Ag/ZnIn 2 S 4 heterostructures that the surface plasmon resonance of metal nanoparticles boosted the formation of photoinduced charge carriers. [29] The optimal photocatalyst exhibited large enhance ment on both the photocatalytic H 2 production and CO 2 reduction processes compared with the bare ZnIn 2 S 4 coun terpart. The current generation of plasmonic nanostructures could be improved by reducing the decay of hot electrons and it was observed in a CdS/Au/SrTiO 3 photo catalyst.…”

Section: Novel Photophysical Phenomenamentioning

confidence: 99%

Recent Progress in Semiconductor‐Based Nanocomposite Photocatalysts for Solar‐to‐Chemical Energy Conversion

Wang

2017

Advanced Energy Materials

207

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Photocatalysis, which can directly convert solar energy into chemical energy and simultaneously accomplish solar energy conversion and storage objectives, is regarded as one of the most promising strategies to address the energy supply and environmental degradation issues. In recent decades, great efforts and encouraging achievements are performed in the field of semiconductor photocatalysts. Herein, this progress report summarizes the recent investigations and focuses on the advanced semiconductor‐based nanocomposite materials and structures and the novel mechanisms for the photocatalytic solar‐to‐chemical energy conversion. It begins with discussing basic principles for the establishment of an efficient photocatalysis system and illustrating recent studies on improving the elementary processes of photocatalysis, i.e., photophysics and surface/interface chemistry. Then, it demonstrates how the fundamental principles are utilized to enhance the important energy‐conversion‐related reactions, such as light‐driven water splitting, CO2 reduction, nitrogen fixation, organic photosynthesis, etc. Finally, the report concludes the topic on semiconductor‐based nanocomposite photocatalysis along with identifying crucial issues in fundamental studies, challenges in large‐scale industrializations, and perspectives in related research fields.

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Multichannel‐Improved Charge‐Carrier Dynamics in Well‐Designed Hetero‐nanostructural Plasmonic Photocatalysts toward Highly Efficient Solar‐to‐Fuels Conversion

Abstract: The charge-carrier dynamics process in well-designed hetero-nanostructural plasmonic photocatalysts is greatly improved through a multichannel sensitization effect, which therefore results in a significant enhancement of the efficiencies of solar-to-fuels conversion.

Cited by 257 publications

References 75 publications

Near‐Infrared‐Plasmonic Energy Upconversion in a Nonmetallic Heterostructure for Efficient H₂ Evolution from Ammonia Borane

Near‐Infrared‐Plasmonic Energy Upconversion in a Nonmetallic Heterostructure for Efficient H₂ Evolution from Ammonia Borane

CO₂ Reduction: From the Electrochemical to Photochemical Approach

Recent Progress in Semiconductor‐Based Nanocomposite Photocatalysts for Solar‐to‐Chemical Energy Conversion

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Multichannel‐Improved Charge‐Carrier Dynamics in Well‐Designed Hetero‐nanostructural Plasmonic Photocatalysts toward Highly Efficient Solar‐to‐Fuels Conversion

Abstract: The charge-carrier dynamics process in well-designed hetero-nanostructural plasmonic photocatalysts is greatly improved through a multichannel sensitization effect, which therefore results in a significant enhancement of the efficiencies of solar-to-fuels conversion.

Cited by 257 publications

References 75 publications

Near‐Infrared‐Plasmonic Energy Upconversion in a Nonmetallic Heterostructure for Efficient H2 Evolution from Ammonia Borane

Near‐Infrared‐Plasmonic Energy Upconversion in a Nonmetallic Heterostructure for Efficient H2 Evolution from Ammonia Borane

CO2 Reduction: From the Electrochemical to Photochemical Approach

Recent Progress in Semiconductor‐Based Nanocomposite Photocatalysts for Solar‐to‐Chemical Energy Conversion

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Near‐Infrared‐Plasmonic Energy Upconversion in a Nonmetallic Heterostructure for Efficient H₂ Evolution from Ammonia Borane

Near‐Infrared‐Plasmonic Energy Upconversion in a Nonmetallic Heterostructure for Efficient H₂ Evolution from Ammonia Borane

CO₂ Reduction: From the Electrochemical to Photochemical Approach