Atomically Dispersed Metal‐Based Catalysts for Zn–CO₂Batteries

Small Structures, Journal Year: 2022, Volume and Issue: 3(12)

Published: Aug. 19, 2022

Rechargeable aqueous Zn–CO 2 batteries show great promise in meeting severe environmental problems and energy crises due to their combination of CO utilization output, as well advantages high theoretical density, abundant raw materials, safety. Developing high‐efficiency stable reduction reaction (CO RR) electrocatalysts is critical importance for the promotion this technology. Atomically dispersed metal‐based catalysts (ADMCs), with extremely atom‐utilization efficiency, tunable coordination environments, superior intrinsic catalytic activity, are emerging promising candidates batteries. Herein, some recent developments atomically summarized, including transition metal non‐transition sites. Moreover, various synthetic strategies, characterization methods, relationship between active site structures RR activity/Zn–CO battery performance introduced. Finally, challenges perspectives also proposed future development ADMCs

Language: Английский

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Scalable spinning, winding, and knitting graphene textile TENG for energy harvesting and human motion recognition

Nano Energy, Journal Year: 2022, Volume and Issue: 107, P. 108137 - 108137

Published: Dec. 27, 2022

Language: Английский

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Single atomic cerium sites anchored on nitrogen-doped hollow carbon spheres for highly selective electroreduction of nitric oxide to ammonia

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 638, P. 650 - 657

Published: Feb. 9, 2023

Language: Английский

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Integrated Self‐Powered Sensors Based on 2D Material Devices

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(41)

Published: Aug. 3, 2022

With the development of Internet Things, there is an increasing need for clean energy and large‐scale sensory systems. Triboelectric/piezoelectric nanogenerators (TENGs/PENGs), have attracted considerable attention as a new type power generation terminal, which can harvest surrounding convert it into electrical energy. To improve output performance (NGs) diversify related applications, 2D materials with high carrier mobility excellent piezoelectric properties be directly used or integrated different types self‐powered sensors. In this review, authors first introduce optoelectronic materials, followed by triboelectric series in TENGs. The categories sensors based on are then summarized according to their structures compositions. We also discuss detail recent applications from five aspects. Finally, challenges outlooks research field featured. Given continuous they considered significant potential biomedicine, environmental detection, human motion monitoring, harvesting, smart wearable devices.

Language: Английский

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Challenges and strategies towards copper-based catalysts for enhanced electrochemical CO2 reduction to multi-carbon products

Fuel, Journal Year: 2022, Volume and Issue: 332, P. 126114 - 126114

Published: Oct. 2, 2022

Language: Английский

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How to select heterogeneous CO ₂ reduction electrocatalyst

Deleted Journal, Journal Year: 2023, Volume and Issue: 3, P. e9120096 - e9120096

Published: Sept. 1, 2023

As an important part of carbon neutralization, dioxide electroreduction reaction (CO₂RR) can convert CO₂ into high value-added chemicals and fuels to realize the recycling resources solve problem environmental pollution. Therefore, exploring element species surface structure catalyst plays a central role in improving performance catalyst, enhancing conversion efficiency forming C₁ C₂₊ products. Here, we summarize recent progress selective regulation CO₂RR products by different elements. In particular, emphasize structure-property relationship microenvironment metal center substrate, heteroatom doping, hydrogen bond network metal-free polymer, construction heterogeneous catalytic system. At same time, advances for identification active sites mechanistic studies on process reducing are reviewed, as well comprehensive review final Finally, outline inevitable challenges faced present our own recommendations aimed at contributing resource utilization.

Language: Английский

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CxNy-based materials as gas sensors: Structure, performance, mechanism and perspective

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 503, P. 215653 - 215653

Published: Jan. 9, 2024

Carbon nitride (CxNy) materials, characterized by an ordered two-dimensional without metal ions structure high N:C ratio, phase transition transformation, predispose them for promising applications in catalytic reaction, flexible electronics, broadband photodetectors and battery. However, up to now, its potential advantages gas sensor have yet be fully explored. This review provides a comprehensive overview of recent advances CxNy-based materials applied as substrates covering structure, properties, synthesis methods, enhancement strategies. A rigorous assessment their sensing capabilities, including sensitivity, selectivity, stability was critically summarized. Additionally, the molecule-level mechanistic aspects underlying gas-sensing working principles insights into functional properties were discussed. Furthermore, thorough investigations utilizing density theory (DFT) studies, aimed illuminating fundamental governing behavior presented detail. Finally, futuristic along with challenges CxNy deliberated herein.

Language: Английский

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Bifunctional Nb-N-C atomic catalyst for aqueous Zn-air battery driving CO2 electrolysis

Science China Materials, Journal Year: 2022, Volume and Issue: 66(3), P. 1013 - 1023

Published: Nov. 18, 2022

Language: Английский

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Direct Z-Scheme Photocatalytic System: Insights into the Formative Factors of Photogenerated Carriers Transfer Channel from Ultrafast Dynamics

ACS Catalysis, Journal Year: 2022, Volume and Issue: 12(15), P. 9570 - 9578

Published: July 21, 2022

The direct Z-scheme photocatalytic heterojunction, possessing type II band alignments but simultaneously realizing the spatial separation of photogenerated electrons and holes (PEHs) well-preserved strong redox ability, is a promising strategy for solving energy environmental issues. However, conventional method solely relying on direction interfacial electric field (IEF) to determine often different with experiments. Properly evaluating constructing remain limited. Herein, combining hybrid density functional theory excited state ultrafast dynamics simulation, we find that formative factor path comes from two aspects by systematically exploring series prototypical heterojunctions taking X2Y3 ferroelectrics (X: Al, Ga, In. Y: S, Se, Te) BCN semiconductors. On one hand, interlayer recombination PEHs weak ability can be significantly promoted IEF. other nonadiabatic coupling interface transfer channel plays key role in preserving high activity PEHs, which extend reacting time femtosecond hundreds nanosecond scale. This study deepens understanding formation accelerate design photocatalysts.

Language: Английский

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Highly dispersed Ru clusters toward an efficient and durable hydrogen oxidation reaction

Chemical Communications, Journal Year: 2022, Volume and Issue: 58(84), P. 11839 - 11842

Published: Jan. 1, 2022

Here, Ru clusters supported on nitrogen-doped hollow carbon spheres show a remarkable activity and durability toward the hydrogen oxidation reaction (HOR) H2-O2 fuel cell performance in alkaline media. Theoretical simulations indicate that endow thermodynamically favourable HOR kinetics an optimal adsorption affinity.

Language: Английский

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