Transition metal-based bimetallic MOFs and MOF-derived catalysts for electrochemical oxygen evolution reaction

Energy & Environmental Science, Journal Year: 2021, Volume and Issue: 14(4), P. 1897 - 1927

Published: Jan. 1, 2021

The review summarizes transition metal-based bimetallic MOFs and their derived materials as electrocatalytic for the OER. mechanisms of OER probed by DFT calculation andin situcharacterization techniques are also discussed.

Language: Английский

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2D Heterostructures for Ubiquitous Electronics and Optoelectronics: Principles, Opportunities, and Challenges

Chemical Reviews, Journal Year: 2022, Volume and Issue: 122(6), P. 6514 - 6613

Published: Feb. 8, 2022

A grand family of two-dimensional (2D) materials and their heterostructures have been discovered through the extensive experimental theoretical efforts chemists, material scientists, physicists, technologists. These pioneering works contribute to realizing fundamental platforms explore analyze new physical/chemical properties technological phenomena at micro-nano-pico scales. Engineering 2D van der Waals (vdW) via chemical physical methods with a suitable choice stacking order, thickness, interlayer interactions enable exotic carrier dynamics, showing potential in high-frequency electronics, broadband optoelectronics, low-power neuromorphic computing, ubiquitous electronics. This comprehensive review addresses recent advances terms representative materials, general fabrication methods, characterization techniques vital role parameters affecting quality heterostructures. The main emphasis is on 3D-bulk (3D) hybrid systems exhibiting intrinsic quantum mechanical responses optical, valley, topological states. Finally, we discuss universality applications trends for future electronics optoelectronics (FEO) under challenges opportunities from physical, nanotechnological, synthesis perspectives.

Language: Английский

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Self-assembly of block copolymers towards mesoporous materials for energy storage and conversion systems

Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 49(14), P. 4681 - 4736

Published: Jan. 1, 2020

Self-assembly of block copolymers (BCPs) provides a versatile strategy for controllable preparation broad range functional materials with different ordered structures. In recent decades, this soft-templating has been widely utilized preparing wide mesoporous materials. These porous have attracted tremendous interest in energy storage and conversion (ESC) applications view their ability to absorb, store, interact guest species on exterior/interior surfaces the pore space. Compared other synthetic approaches, such as template-free hard-templating methods, BCP protocols show great advantages construction large mesopores diameters between 10-60 nm, which are suitable requiring or hosting large-sized species/molecules. addition, shows incomparable merits flexible control size/architecture/wall thickness, determines final performance ESC devices. last decade, rapid development witnessed area BCP-templated review paper, we overview progress field over past 10 years, an emphasis discussions methodologies, structures (including morphology size/shape), potential particularly rechargeable batteries, supercapacitors, electro-/photocatalysis, solar cells, etc.

Language: Английский

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The damaging effects of the acidity in PEDOT:PSS on semiconductor device performance and solutions based on non-acidic alternatives

Materials Horizons, Journal Year: 2020, Volume and Issue: 7(7), P. 1759 - 1772

Published: Jan. 1, 2020

Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate), PEDOT:PSS, has been widely used as an effective hole transporting material in many different organic semiconductor devices for well over a decade.

Language: Английский

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Photoelectrochemical Water‐Splitting Using CuO‐Based Electrodes for Hydrogen Production: A Review

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(33)

Published: June 12, 2021

Abstract The cost‐effective, robust, and efficient electrocatalysts for photoelectrochemical (PEC) water‐splitting has been extensively studied over the past decade to address a solution energy crisis. interesting physicochemical properties of CuO have introduced this promising photocathodic material among few photocatalysts with narrow bandgap. This photocatalyst high activity PEC hydrogen evolution reaction (HER) under simulated sunlight irradiation. Here, recent advancements CuO‐based photoelectrodes, including undoped CuO, doped composites, in field, are comprehensively studied. Moreover, synthesis methods, characterization, fundamental factors each classification discussed detail. Apart from exclusive characteristics CuO/2D materials, as groups growing nanocomposites photocurrent‐generating devices, separate sections. Regarding particular attention paid heterostructure photocathodes, water splitting application is reviewed group such electronic structures, defects, bandgap, hierarchical structures critically assessed.

Language: Английский

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Hollow MoSe2@Bi2S3/CdS Core-Shell Nanostructure as Dual Z-Scheme Heterojunctions with Enhanced Full Spectrum Photocatalytic-Photothermal Performance

Applied Catalysis B Environment and Energy, Journal Year: 2020, Volume and Issue: 281, P. 119482 - 119482

Published: Aug. 30, 2020

Language: Английский

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Spontaneous full photocatalytic water splitting on 2D MoSe₂/SnSe₂ and WSe₂/SnSe₂ vdW heterostructures

Nanoscale, Journal Year: 2019, Volume and Issue: 11(31), P. 14836 - 14843

Published: Jan. 1, 2019

Spontaneous full photocatalytic water splitting into hydrogen and oxygen under visible light irradiation without the need for sacrificial agents is a challenging task, because suitable band gaps, low overpotentials both half-reactions spatially-separated catalytic sites should be fulfilled simultaneously in system. Here, we propose promising strategy to achieve this goal by constructing van der Waals (vdW) heterostructures of two-dimensional (2D) materials. Using first-principles calculations, predict two photocatalysts, MoSe2/SnSe2 WSe2/SnSe2 heterostructures, with evolution reaction (HER) (OER) taking place separately on MoSe2 (WSe2) SnSe2 layers. More excitingly, Se-vacancy monolayer effectively lowers HER overpotential, making reactions occur spontaneously potentials solely provided photo-generated electrons holes pure water. The unique alignment these hetero-structured photocatalysts leads high solar-to-hydrogen (STH) energy conversion efficiencies up 10.5%, which quite commercial applications. This work opens an avenue design highly-efficient splitting.

Language: Английский

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The function of metal–organic frameworks in the application of MOF-based composites

Nanoscale Advances, Journal Year: 2020, Volume and Issue: 2(7), P. 2628 - 2647

Published: Jan. 1, 2020

In this review, recent progress in MOF-based composites was summarized with an effort to clarify the structure–performance relationship of composites, particular emphasis on functions MOF components for practical applications.

Language: Английский

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Photoelectrochemical energy storage materials: design principles and functional devices towards direct solar to electrochemical energy storage

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(4), P. 1511 - 1528

Published: Jan. 1, 2022

Advanced solar energy utilization technologies have been booming for carbon-neutral and renewable society development. Photovoltaic cells now hold the highest potential widespread sustainable electricity production photo(electro)catalytic could supply various chemicals. However, both of them require connection storage devices or matter to compensate intermittent sunlight, suffering from complicated structures external loss. Newly developed photoelectrochemical (PES) can effectively convert store in one two-electrode battery, simplifying configuration decreasing Based on PES materials, realize direct solar-to-electrochemical storage, which is fundamentally different (solar-to-chemical conversion) photovoltaic (solar-to-electricity conversion). This review summarizes a critically selected overview advanced key electrochemical technology, with focus research progress processes design principles. specific discussions performance metrics, bottlenecks devices, including low efficiency deteriorative stability, are also discussed. Finally, several perspectives strategies overcome practical presented.

Language: Английский

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Simultaneous Dual-Functional Photocatalysis by g-C₃N₄-Based Nanostructures

ACS ES&T Engineering, Journal Year: 2022, Volume and Issue: 2(4), P. 564 - 585

Published: Jan. 24, 2022

Heterogeneous photocatalytic reactions have experienced many efforts in developing new materials to tackle environmental and energy crises through utilizing appropriate photocatalysts wastewater treatment, H2 generation, organic transformations, CO2 reduction, N2 photofixation, biomass conversion. While these processes are addressed the literature separately, a recent innovative viewpoint is employ system achieve simultaneously two or more functions. The challenging point that combination of functions one requires novel design engineering an semiconductor photocatalyst with special characteristics for each application particular environment. Recently, graphitic carbon nitride (g-C3N4) its unique physicochemical properties has gained tremendous attention among researchers due great potential utilization as dual-functional photocatalyst. In this study, role morphological band gap manipulation heterojunction formation g-C3N4 will be considered. These newly applied strategies useful improve activity different simultaneous reactions. Furthermore, detailed information on g-C3N4-based discussed reactions: namely, (i) generation combined oxidation pollutants, (ii) mineralization pollutants reduction obtained CO2, (iii) removal mixture heavy metals, (iv) H+ (v) conjunction substrates/biomass value-added products, (vi) H2O2 production. approaches could provide efficient sustainable involved both issues.

Language: Английский

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