Photocatalysis: Light‐Switchable Oxygen Vacancies in Ultrafine Bi<sub>5</sub>O<sub>7</sub>Br Nanotubes for Boosting Solar‐Driven Nitrogen Fixation in Pure Water (Adv. Mater. 31/2017)

Wang, Shengyao; Hai, Xiao; Ding, Xing; Chang, Kun; Xiang, Yonggang; Meng, Xianguang; Yang, Zixin; Chen, Hao; Ye, Jinhua

doi:10.1002/adma.201770223

Cited by 43 publications

(59 citation statements)

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“…In 1977, Schrauze and co‐workers first discovered the photoreduction of N 2 by titanium dioxide (TiO 2 ) in an aqueous solution, introducing new opportunities for photocatalytic NH 3 synthesis over semiconductor photocatalysts under low temperatures and ambient pressures . Since then, various materials have been prepared for the application of NRR, such as metal oxide/sulfide, g‐C 3 N 4 , Bi‐based photocatalysts, layered double hydroxides, etc . Nevertheless, the photochemical N 2 reduction systems face challenges such as the problematic collection and recovery of photocatalysts after multiple cycles, sluggish surface reaction dynamics and possible reverse reactions.…”

Section: Advanced Catalysts For Nitrogen Conversion To Ammoniamentioning

confidence: 99%

Recent Advanced Materials for Electrochemical and Photoelectrochemical Synthesis of Ammonia from Dinitrogen: One Step Closer to a Sustainable Energy Future

Yan

Xia

et al. 2019

Advanced Energy Materials

127

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Ammonia (NH3), an important raw material for chemical industry and agriculture, is also considered to be an intriguing energy storage and transportation media for chemical conversion schemes. The world's primary NH3 supply is based on the natural nitrogen fixation by diazotrophs through an enzymatic nitrogenase process and the industrial nitrogen fixation through a traditional Haber–Bosch process. The natural synthesis of NH3 can hardly meet the rapidly growing global demand. Meanwhile, the industrial NH3 production is still dominated by the high‐temperature and high‐pressure reaction between nitrogen and hydrogen (N2 + 3H2 → 2NH3), requiring intensive energy input and generating massive CO2. Therefore, seeking a breakthrough in the development of catalysts toward efficient ammonia synthesis has become the frontier of energy and chemical conversion schemes. This review summarizes and discusses the recent progress on developing new strategies to optimize the efficiency of NH3 production coupled with renewable energy sources, with a specific focus on electrocatalytic and photoelectrocatalytic conversion of N2 to NH3. The most recent advances in the development of catalytic materials, the design of the reaction systems, and the computational insights for electrochemical and photoelectrochemical ammonia synthesis are covered.

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Section: Advanced Catalysts For Nitrogen Conversion To Ammoniamentioning

confidence: 99%

Recent Advanced Materials for Electrochemical and Photoelectrochemical Synthesis of Ammonia from Dinitrogen: One Step Closer to a Sustainable Energy Future

Yan

Xia

et al. 2019

Advanced Energy Materials

127

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“…Because, their ultrathin thickness can not only shorten the charge migration distance, but also provide abundant surface active sites for the N 2 fixation and activation ( Table 3 ). [ 32,33,132,138,206–216 ] Benefitting from their abundant surface atoms, surface engineering is widely used in obtaining efficient thin‐layered photocatalysts for nitrogen fixation. Zhang's group fabricated a series of ultrathin M II M III ‐LDHs (M II = Mg, Ni, Zn, and Cu, M III = Al and Cr) through coprecipitation method.…”

Section: Photocatalytic Applicationsmentioning

confidence: 99%

Thin‐Layered Photocatalysts

Sun

Huang

Zhao

et al. 2020

Adv Funct Materials

131

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Semiconductor photocatalysis, a green and sustainable technology, is of great significance for solving environmental pollution and energy shortages. However, the common problems of inefficient light harvesting, rapid recombination of electron-hole pairs, and low surface reactive reaction sites for photocatalysts urgently need to be solved. In this regard, thin-layered photocatalysts are considered to be one of the most promising candidates for addressing these issues, due to their unique surface and electronic properties. In this review, the various strategies for constructing thin-layered photocatalysts are summarized, and emphasis is given to approaches for optimizing the photocatalytic performance of the thin-layered materials, which can be classified into surface engineering and junction construction. In addition, the photocatalytic applications of thin-layered materials, i.e., water splitting, CO 2 reduction, nitrogen fixation, and molecule oxygen activation, are summarized. Finally, based on current achievements in thin-layered photocatalysts, their future development and challenges are discussed.

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“…The bond energy of NN triple bond is 940.95 kJ mol −1 . It is a significant challenge to activate and split the strong stable bond, which only relies on light excited electrons from semiconductors in solar‐driven N 2 fixation . There are few researches on the facet‐dependent photocatalytic N 2 fixation of bismuth‐based photocatalysts.…”

Section: Facet Engineering On Bismuth‐based Photocatalytic Materialsmentioning

confidence: 99%

Facet, Junction and Electric Field Engineering of Bismuth‐Based Materials for Photocatalysis

Huang

Shen

et al. 2018

ChemCatChem

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Semiconductor photocatalysis has gained tremendous attention with great prospects to settle the worldwide environmental pollution and energy shortage issues. Many efforts have been made for semiconductor photocatalysts to overcome the disadvantages of the weak photoabsorption and high recombination of charges in the past few decades. Developing active facets and junctions has been diffusely used and shows huge potentials. The surface of active facet where the reductive and oxidative reactions occur has a great influence on the efficiency of reaction molecules that takes over the photogenerated charges. Construction of junctions is regarded as one of the most effective methods to improve the separation efficiency of photogenerated charges. This review mainly focuses on summarizing the synthesis of active facet, facet dependent activities in various photocatalytic reactions, the construction of different kinds of heterojunctions and homojunctions, and the combination of active facet and junctions of bismuth‐based photocatalysts recently. In addition, other new and effective routes, like internal electric field (IEF) regulation and polarization electric field control are also shortly summarized. The review will deepen our understanding on bismuth‐based photocatalysts and provide novel guidelines and perspectives for designing high‐performance photocatalysts.

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Photocatalysis: Light‐Switchable Oxygen Vacancies in Ultrafine Bi₅O₇Br Nanotubes for Boosting Solar‐Driven Nitrogen Fixation in Pure Water (Adv. Mater. 31/2017)

Cited by 43 publications

References 0 publications

Recent Advanced Materials for Electrochemical and Photoelectrochemical Synthesis of Ammonia from Dinitrogen: One Step Closer to a Sustainable Energy Future

Recent Advanced Materials for Electrochemical and Photoelectrochemical Synthesis of Ammonia from Dinitrogen: One Step Closer to a Sustainable Energy Future

Thin‐Layered Photocatalysts

Facet, Junction and Electric Field Engineering of Bismuth‐Based Materials for Photocatalysis

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Photocatalysis: Light‐Switchable Oxygen Vacancies in Ultrafine Bi5O7Br Nanotubes for Boosting Solar‐Driven Nitrogen Fixation in Pure Water (Adv. Mater. 31/2017)

Cited by 43 publications

References 0 publications

Recent Advanced Materials for Electrochemical and Photoelectrochemical Synthesis of Ammonia from Dinitrogen: One Step Closer to a Sustainable Energy Future

Recent Advanced Materials for Electrochemical and Photoelectrochemical Synthesis of Ammonia from Dinitrogen: One Step Closer to a Sustainable Energy Future

Thin‐Layered Photocatalysts

Facet, Junction and Electric Field Engineering of Bismuth‐Based Materials for Photocatalysis

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Product

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Photocatalysis: Light‐Switchable Oxygen Vacancies in Ultrafine Bi₅O₇Br Nanotubes for Boosting Solar‐Driven Nitrogen Fixation in Pure Water (Adv. Mater. 31/2017)