Boron nitride quantum dots decorated ultrathin porous g-C3N4: Intensified exciton dissociation and charge transfer for promoting visible-light-driven molecular oxygen activation

Yang, Yang; Zhang, Chen; Huang, Danlian; Zeng, Guangming; Huang, Jinhui; Lai, Cui; Zhou, Chengyun; Wang, Wenjun; Guo, Hai; Xue, Wenjing; Deng, Rui; Cheng, Min; Xiong, Weiping

doi:10.1016/j.apcatb.2018.12.049

Cited by 559 publications

(146 citation statements)

References 68 publications

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“…As it is demonstrated in Figure , hydrogen fuel can be generated from solar energy through different routes such as solar‐to‐thermal energy for thermochemical cycles and thermolysis, solar‐to‐electrical power using PV for electrolysis, and solar‐to‐photonic energy via photobiological process or photocatalysis …”

Section: Solar Hydrogen Energy Carriermentioning

confidence: 99%

“…36 As it is demonstrated in Figure 1, hydrogen fuel can be generated from solar energy through different routes such as solar-to-thermal energy for thermochemical cycles and thermolysis, solar-to-electrical power using PV for electrolysis, and solar-to-photonic energy via photobiological process or photocatalysis. 38 Photonic-based hydrogen production technologies are still under laboratory investigation using hybrid photocatalysis systems, homogeneous, heterogeneous, and several photocatalysis techniques in photoelectrochemical methods. 39 Yi et al 40 pointed out that nanostructured bismuth tungstate photocatalysts has great capability to be employed in solar water-splitting hydrogen generation process.…”

Section: Solar Hydrogen Energy Carriermentioning

confidence: 99%

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Hydrogen from solar energy, a clean energy carrier from a sustainable source of energy

2020

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Summary Solar energy is going to play a crucial role in the future energy scenario of the world that conducts interests to solar‐to‐hydrogen as a means of achieving a clean energy carrier. Hydrogen is a sustainable energy carrier, capable of substituting fossil fuels and decreasing carbon dioxide (CO2) emission to save the world from global warming. Hydrogen production from ubiquitous sustainable solar energy and an abundantly available water is an environmentally friendly solution for globally increasing energy demands and ensures long‐term energy security. Among various solar hydrogen production routes, this study concentrates on solar thermolysis, solar thermal hydrogen via electrolysis, thermochemical water splitting, fossil fuels decarbonization, and photovoltaic‐based hydrogen production with special focus on the concentrated photovoltaic (CPV) system. Energy management and thermodynamic analysis of CPV‐based hydrogen production as the near‐term sustainable option are developed. The capability of three electrolysis systems including alkaline water electrolysis (AWE), polymer electrolyte membrane electrolysis, and solid oxide electrolysis for coupling to solar systems for H2 production is discussed. Since the cost of solar hydrogen has a very large range because of the various employed technologies, the challenges, pros and cons of the different methods, and the commercialization processes are also noticed. Among three electrolysis technologies considered for postulated solar hydrogen economy, AWE is found the most mature to integrate with the CPV system. Although substantial progresses have been made in solar hydrogen production technologies, the review indicates that these systems require further maturation to emulate the produced grid‐based hydrogen.

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Section: Solar Hydrogen Energy Carriermentioning

confidence: 99%

Section: Solar Hydrogen Energy Carriermentioning

confidence: 99%

Hydrogen from solar energy, a clean energy carrier from a sustainable source of energy

2020

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“…Molecular oxygen activation, refers to inert O molecules into highly reactive oxygen‐involved species, such as 1 O 2 , O 2• − , and • OH radicals, is also a kind of widely studied photocatalytic process, which has many application prospects in the field of organic synthesis, pollutants degradation and so on ( Table 4 ). [ 44,48,49,68,77,79,90,91,149,162,168,218–221 ] However, the relative weak interactions between the inert molecular oxygen and the surface of the photocatalysts is the main drawbacks for achieving effective molecular oxygen activation. [ 217 ] In recent years, thin‐layered photocatalysts are considered as good candidates for being applied in the field of molecular oxygen activation.…”

Section: Photocatalytic Applicationsmentioning

confidence: 99%

Thin‐Layered Photocatalysts

Sun

Huang

Zhao

et al. 2020

Adv Funct Materials

127

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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 development of noble‐metal‐free catalysts is highly desirable considering the sustainability and practical implementation . Elemental phosphorus, among the top ten elements in the earth crust (up to 100 billion tons), holds great potential for preparing cost‐effective electrocatalysts .…”

Section: Introductionmentioning

confidence: 99%

Phosphorene‐Based Electrocatalysts

Dinh

Zhang

Zhu

et al. 2020

Chemistry A European J

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Phosphorene, generally defined as two-dimensional (2D) black phosphorus (BP) with monolayered or few-layered structure, has emerged as ap romising member of the family of 2D materials.S ince its discoveryi n2 014, extensive research has been focusedo nb roadening its applications, covering the biological, photoelectric, and electrochemical fields, owing to the unique physicochemical ands tructural properties. As as ingle-elemental material, phosphorene has demonstrated its applicability for the preparation of efficient electrocatalysts for hydrogen evolution reaction( HER), oxygen evolutionr eaction (OER), nitrogen reduction reaction (NRR), and other electrocatalytic applications. In this Minireview,asummary of the very recent research progresses of phosphorene in electrocatalysis is offered, with as pecial focus on the effective synthetic strategies towards performance improvement. In the concluding section, challenges and perspectives are also discussed. Figure 5. ORR performance of M-TLBP and M-CB in 0.1 m KOH. RRDE voltammograms of (a) Ag-TLBP and Ag-CB, (b) Au-TLBP and Au-CB, and (c) Pt-TLBP and Pt-CBa tthe rotationr ate of 1600 rpm with the ring potential set at + 1.5 V( vs. RHE). Reproduced with permission from Ref. [77].

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Boron nitride quantum dots decorated ultrathin porous g-C3N4: Intensified exciton dissociation and charge transfer for promoting visible-light-driven molecular oxygen activation

Cited by 559 publications

References 68 publications

Hydrogen from solar energy, a clean energy carrier from a sustainable source of energy

Hydrogen from solar energy, a clean energy carrier from a sustainable source of energy

Thin‐Layered Photocatalysts

Phosphorene‐Based Electrocatalysts

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