Defect engineering of two-dimensional materials for advanced energy conversion and storage

Chemical Society Reviews, Год журнала: 2023, Номер 52(5), С. 1723 - 1772

Опубликована: Янв. 1, 2023

Defective two-dimensional (2D) materials show huge potential for energy-related fields. This review overviews the formation/evolution mechanisms and engineering strategies of defects in 2D materials, which enable enhanced electrode reaction kinetics.

Язык: Английский

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Water electrolysis for hydrogen production: from hybrid systems to self-powered/catalyzed devices

Energy & Environmental Science, Год журнала: 2023, Номер 17(1), С. 49 - 113

Опубликована: Ноя. 7, 2023

This perspective highlights recent advancements in innovative strategies to provide valuable insights into the potential for energy-saving hydrogen production through water electrolysis.

Язык: Английский

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Electrochemical reduction of carbon dioxide to multicarbon (C₂₊) products: challenges and perspectives

Energy & Environmental Science, Год журнала: 2023, Номер 16(11), С. 4714 - 4758

Опубликована: Янв. 1, 2023

This review analyzes advanced catalysts and C 2+ synthesis mechanisms based on theoretical explorations in situ / operando characterizations. Triphasic interface optimization is discussed for the potential of industry-compatible stability.

Язык: Английский

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Atomically Dispersed Ni–Cu Catalysts for pH‐Universal CO₂ Electroreduction

Advanced Materials, Год журнала: 2023, Номер 35(13)

Опубликована: Янв. 10, 2023

CO2 electroreduction is of great significance to reduce emissions and complete the carbon cycle. However, unavoidable carbonate formation low utilization efficiency in neutral or alkaline electrolytes hinder its application at commercial scale. The development reduction under acidic conditions provides a promising strategy, but inhibition hydrogen evolution reaction difficult. Herein, first work design Ni-Cu dual atom catalyst supported on hollow nitrogen-doped reported for pH-universal CO. shows high CO Faradaic ≈99% acidic, neutral, electrolytes, partial current densities reach 190 ± 11, 225 10, 489 14 mA cm-2 , respectively. In particular, reaches 64.3%, which twice as that conditions. Detailed study indicates existence electronic interaction between Ni Cu atoms. atoms push d-band center further toward Fermi level, thereby accelerating *COOH. addition, operando characterizations density functional theory calculation are used elucidate possible mechanism electrolytes.

Язык: Английский

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A rational design of functional porous frameworks for electrocatalytic CO₂reduction reaction

Chemical Society Reviews, Год журнала: 2023, Номер 52(4), С. 1382 - 1427

Опубликована: Янв. 1, 2023

Rational design of functional porous frameworks for electrocatalytic CO 2 reduction reaction.

Язык: Английский

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Multiscale CO₂ Electrocatalysis to C₂₊ Products: Reaction Mechanisms, Catalyst Design, and Device Fabrication

Chemical Reviews, Год журнала: 2023, Номер 123(17), С. 10530 - 10583

Опубликована: Авг. 17, 2023

Electrosynthesis of value-added chemicals, directly from CO2, could foster achievement carbon neutral through an alternative electrical approach to the energy-intensive thermochemical industry for utilization. Progress in this area, based on electrogeneration multicarbon products CO2 electroreduction, however, lags far behind that C1 products. Reaction routes are complicated and kinetics slow with scale up high levels required commercialization, posing significant problems. In review, we identify summarize state-of-art progress synthesis a multiscale perspective discuss current hurdles be resolved generation reduction including atomistic mechanisms, nanoscale electrocatalysts, microscale electrodes, macroscale electrolyzers guidelines future research. The review ends cross-scale links discrepancies between different approaches extensions performance stability issues arise industrial environment.

Язык: Английский

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Stability Issues in Electrochemical CO₂ Reduction: Recent Advances in Fundamental Understanding and Design Strategies

Advanced Materials, Год журнала: 2023, Номер 35(51)

Опубликована: Авг. 11, 2023

Electrochemical CO2 reduction reaction (CO2 RR) offers a promising approach to close the anthropogenic carbon cycle and store intermittent renewable energy in fuels or chemicals. On path commercializing this technology, achieving long-term operation stability is central requirement but still confronts challenges. This motivates organize present review systematically discuss issue of RR. starts from fundamental understanding on destabilization mechanisms RR, with focus degradation electrocatalyst change microenvironment during continuous electrolysis. Subsequently, recent efforts catalyst design stabilize active sites are summarized, where increasing atomic binding strength resist surface reconstruction highlighted. Next, optimization electrolysis system enhance by maintaining especially mitigating flooding carbonate problems demonstrated. The manipulation conditions also enables prolong RR lifespan through recovering catalytically mass transport process. finally ends up indicating challenges future opportunities.

Язык: Английский

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Facet Dopant Regulation of Cu₂O Boosts Electrocatalytic CO₂ Reduction to Formate

Advanced Functional Materials, Год журнала: 2023, Номер 33(16)

Опубликована: Янв. 25, 2023

Abstract Electrochemical carbon dioxide reduction reaction (CO 2 RR) using clean electric energy provides a sustainable route to generate highly‐valuable chemicals and fuels, which is beneficial for realizing the carbon‐neutral cycle. Up now, achieving narrow product distribution highly targeted selectivity over Cu‐based electrocatalysts still big challenge. Herein, sulfur modification on different crystal planes of cuprous oxide (Cu O) demonstrated, results in an improvement formate generation degrees. Experimental density functional theory (DFT) calculations reveal that species modified surface Cu O (100) facet effectively lower formation key intermediate *OCOH compared with (111) facet. As consequence, p‐Block elements effective strategy optimize adsorption during CO RR, leading selective product.

Язык: Английский

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Integrating Host Design and Tailored Electronic Effects of Yolk–Shell Zn−Mn Diatomic Sites for Efficient CO₂ Electroreduction

Angewandte Chemie International Edition, Год журнала: 2023, Номер 63(3)

Опубликована: Ноя. 24, 2023

Abstract Modulating the surface and spatial structure of host is associated with reactivity active site, also enhances mass transfer effect CO 2 electroreduction process (CO RR). Herein, we describe development two‐step ligand etch–pyrolysis to access an asymmetric dual‐atomic‐site catalyst (DASC) composed a yolk–shell carbon framework (Zn 1 Mn ‐SNC) derived from S,N‐coordinated Zn−Mn dimers anchored on metal–organic (MOF). In Zn ‐SNC, electronic effects S/N−Zn−Mn−S/N configuration are tailored by strong interactions between dual sites co‐coordination S/N atoms, rendering structural stability atomic distribution. H‐cell, ‐SNC DASC shows low onset overpotential 50 mV high Faraday efficiency 97 % applied 343 mV, thus outperforming counterparts, in flow cell, it reaches current density 500 mA cm −2 at −0.85 V, benefitting accessibility sites. DFT simulations showed that diatomic site optimal adsorption strength COOH* lowers reaction energy barrier, boosting intrinsic RR activity DASC. The structure‐property correlation found this study suggests new ideas for highly accessible catalysts.

Язык: Английский

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How to select heterogeneous CO ₂ reduction electrocatalyst

Deleted Journal, Год журнала: 2023, Номер 3, С. e9120096 - e9120096

Опубликована: Сен. 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.

Язык: Английский

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