In situ Irradiated XPS Investigation on S‐Scheme TiO₂@ZnIn₂S₄ Photocatalyst for Efficient Photocatalytic CO₂ Reduction

Small, Год журнала: 2021, Номер 17(41)

Опубликована: Сен. 12, 2021

Reasonable design of efficient hierarchical photocatalysts has gained significant attention. Herein, a step-scheme (S-scheme) core-shell TiO2 @ZnIn2 S4 heterojunction is designed for photocatalytic CO2 reduction. The optimized sample exhibits much higher photoreduction conversion rates (the sum yield CO, CH3 OH, and CH4 ) than the blank control, i.e., ZnIn2 . improved performance can be attributed to inhibited recombination photogenerated charge carriers induced by S-scheme heterojunction. improvement also large specific surface areas abundant active sites. Meanwhile, transfer mechanism testified in situ irradiated X-ray photoelectron spectroscopy, work function calculation, electron paramagnetic resonance measurements. This provides an effective strategy designing highly solar fuels.

Язык: Английский

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Fundamentals and applications of photo-thermal catalysis

Chemical Society Reviews, Год журнала: 2020, Номер 50(3), С. 2173 - 2210

Опубликована: Дек. 18, 2020

Photo-thermal catalysis has recently emerged as an alternative route to drive chemical reactions using light energy source. Through the synergistic combination of photo- and thermo-chemical contributions sunlight, photo-thermal potential enhance reaction rates change selectivity patterns, even under moderate operation conditions. This review provides fundamentals localized surface plasmon resonance (LSPR) that explain effect in plasmonic structures, describes different mechanistic pathways underlying catalysis, suggests methodologies disentangle mechanisms proposes material design strategies improve performance. Ultimately, goal is pave way for wide implementation this promising technology production synthetic fuels chemicals.

Язык: Английский

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Application of MOFs and COFs for photocatalysis in CO2 reduction, H2 generation, and environmental treatment

EnergyChem, Год журнала: 2022, Номер 4(4), С. 100078 - 100078

Опубликована: Июнь 25, 2022

Язык: Английский

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CO₂ Hydrogenation to Methanol over In₂O₃-Based Catalysts: From Mechanism to Catalyst Development

ACS Catalysis, Год журнала: 2021, Номер 11(3), С. 1406 - 1423

Опубликована: Янв. 14, 2021

Carbon dioxide (CO2) hydrogenation to methanol with H2 produced renewable energy represents a promising path for the effective utilization of major anthropogenic greenhouse gas, in which catalysts play key role CO2 conversion and selectivity. Although still under development, indium oxide (In2O3)-based have attracted great attention recent years due excellent selectivity along high activity conversion. In this review, we discuss advances In2O3-based based on both experimental computational studies. Various strategies been adopted improve catalytic performance by facilitating formation surface oxygen vacancies (In2O3–x) as active sites, activation toward mitigate reverse water–gas shift reaction, stabilization intermediates. Mechanistic insights are gained from combining kinetic studies, situ characterization, theoretical investigations involving via formate HCOO* pathway versus carboxyl COOH* pathway. Strategies further promote selective include adding metal component such Pd or Ni In2O3 (which may also involve bimetallic In–M catalysts) vacancy formation, an promoter ZrO2 enhance adsorption activation, controlling concentration CO H2O adopting second other desired products olefins aromatics acid catalyst zeolites. Through comprehensive overview In2O3-related catalysts, present review paves way future development methanol.

Язык: Английский

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Green Carbon Science: Efficient Carbon Resource Processing, Utilization, and Recycling towards Carbon Neutrality

Angewandte Chemie International Edition, Год журнала: 2021, Номер 61(15)

Опубликована: Дек. 17, 2021

Green carbon science is defined as the "study and optimization of transformation carbon-containing compounds relevant processes involved in entire cycle from resource processing, energy utilization, CO2 fixation, recycling to utilize resources efficiently minimize net emission."[1] related closely neutrality, fields have developed quickly last decade. In this Minireview, we propose concept index, recent progress petroleum refining, production liquid fuels, chemicals, materials using coal, methane, , biomass, waste plastics highlighted combination with green science. An outlook for these important provided final section.

Язык: Английский

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Towards the development of the emerging process of CO₂heterogenous hydrogenation into high-value unsaturated heavy hydrocarbons

Chemical Society Reviews, Год журнала: 2021, Номер 50(19), С. 10764 - 10805

Опубликована: Янв. 1, 2021

This review covers recent developments in the synthesis of α-olefins and aromatics from CO 2 hydrogenation via direct indirect routes.

Язык: Английский

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Designing Sites in Heterogeneous Catalysis: Are We Reaching Selectivities Competitive With Those of Homogeneous Catalysts?

Chemical Reviews, Год журнала: 2022, Номер 122(9), С. 8594 - 8757

Опубликована: Март 3, 2022

A critical review of different prominent nanotechnologies adapted to catalysis is provided, with focus on how they contribute the improvement selectivity in heterogeneous catalysis. Ways modify catalytic sites range from use reversible or irreversible adsorption molecular modifiers immobilization tethering homogeneous catalysts and development well-defined solid surfaces. The latter covers methods for dispersion single-atom within supports as well complex nanostructures, it includes post-modification materials via processes such silylation atomic layer deposition. All these methodologies exhibit both advantages limitations, but all offer new avenues design specific applications. Because high cost most fact that resulting may limited thermal chemical stability, be best aimed at improving selective synthesis value-added chemicals, incorporated organic schemes, other applications are being explored address problems energy production, instance, greener processes. details each approaches discussed, representative examples provided. We conclude some general remarks future this field.

Язык: Английский

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Vacancy-defect modulated pathway of photoreduction of CO2 on single atomically thin AgInP2S6 sheets into olefiant gas

Nature Communications, Год журнала: 2021, Номер 12(1)

Опубликована: Авг. 6, 2021

Abstract Artificial photosynthesis, light-driving CO 2 conversion into hydrocarbon fuels, is a promising strategy to synchronously overcome global warming and energy-supply issues. The quaternary AgInP S 6 atomic layer with the thickness of ~ 0.70 nm were successfully synthesized through facile ultrasonic exfoliation corresponding bulk crystal. sulfur defect engineering on this H O etching treatment can excitingly change photoreduction reaction pathway steer dominant generation ethene yield-based selectivity reaching ~73% electron-based as high ~89%. Both DFT calculation in-situ FTIR spectra demonstrate that introduction vacancies in causes charge accumulation Ag atoms near vacancies, exposed sites thus effectively capture forming *CO molecules. It makes catalyst surface enrich key intermediates lower C-C binding coupling barrier, which facilitates production ethene.

Язык: Английский

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Defect engineering of oxide perovskites for catalysis and energy storage: synthesis of chemistry and materials science

Chemical Society Reviews, Год журнала: 2021, Номер 50(18), С. 10116 - 10211

Опубликована: Янв. 1, 2021

The present work provides a critical review of the science and technological state-of-the-art defect engineering applied to oxide perovskites in thermocatalytic, electrocatalytic, photocatalytic, energy-storage applications.

Язык: Английский

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Surface functionalization – The way for advanced applications of smart materials

Coordination Chemistry Reviews, Год журнала: 2021, Номер 436, С. 213846 - 213846

Опубликована: Март 9, 2021

This review presents the latest innovations and trends in field of surface functionalization various nanomaterials. The most recent protocols smart materials fabrication as well main challenges which should be overcome order to improve their final performance are discussed here. Particular attention has been paid properties improvement polymer, silica, inorganic hybrid nanomaterials potential for application many fields, from industry, science, environmental protection advanced biomedicine.

Язык: Английский

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