Porous and graphitic structure optimization of biomass-based carbon materials from 0D to 3D for supercapacitors: A review

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 460, P. 141607 - 141607

Published: Jan. 30, 2023

Language: Английский

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Carbon dioxide capture with zeotype materials

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(22), P. 9340 - 9370

Published: Jan. 1, 2022

This review describes the application of zeotype materials for capture CO 2 in different scenarios, critical parameters defining adsorption performances, and challenges zeolitic adsorbents capture.

Language: Английский

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Microwave Synthesis of Pt Clusters on Black TiO₂ with Abundant Oxygen Vacancies for Efficient Acidic Electrocatalytic Hydrogen Evolution

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(14)

Published: Feb. 9, 2023

Oxygen vacancies-enriched black TiO2 is one promising support for enhancing hydrogen evolution reaction (HER). Herein, oxygen vacancies enriched supported sub-nanometer Pt clusters (Pt/TiO2 -OV ) with metal interactions designed through solvent-free microwave and following low-temperature electroless approach the first time. High-temperature strong reductants are not required then can avoid aggregation of decorated species. Experimental theoretical calculation verify that created exhibit synergistic effects optimizing kinetics. Based on it, Pt/TiO2 presents remarkable electrocatalytic performance 18 mV to achieve 10 mA cm-2 coupled small Tafel slope 12 dec-1 . This work provides quick synthetic strategy preparing titanium dioxide based nanomaterials.

Language: Английский

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High‐entropy alloy catalysts: From bulk to nano toward highly efficient carbon and nitrogen catalysis

Carbon Energy, Journal Year: 2022, Volume and Issue: 4(5), P. 731 - 761

Published: July 12, 2022

Abstract High‐entropy alloys (HEAs) have attracted widespread attention as both structural and functional materials owing to their huge multielement composition space unique high‐entropy mixing structure. Recently, emerging HEAs, either in nano or highly porous bulk forms, are developed utilized for various catalytic clean energy applications with superior activity remarkable durability. Being catalysts, HEAs possess some advantages, including (1) a the discovery of new catalysts fine‐tuning surface adsorption (i.e., selectivity), (2) diverse active sites derived from random that especially suitable multistep catalysis, (3) stabilized structure improves durability harsh environments. Benefited these inherent HEA demonstrated performances promising complex carbon (C) nitrogen (N) cycle reactions featuring reaction pathways many different intermediates. However, design, synthesis, characterization, understanding C‐ N‐involved extremely challenging because reactions. In this review, we present recent development particularly on innovative extensive syntheses, advanced (in situ) characterizations, C N looping reactions, aiming provide focused view how utilize intrinsically important end, remaining challenges future directions proposed guide application efficient storage chemical conversion toward neutrality.

Language: Английский

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A Prompt Decarbonization Pathway for Shipping: Green Hydrogen, Ammonia, and Methanol Production and Utilization in Marine Engines

Atmosphere, Journal Year: 2023, Volume and Issue: 14(3), P. 584 - 584

Published: March 17, 2023

The shipping industry has reached a higher level of maturity in terms its knowledge and awareness decarbonization challenges. Carbon-free or carbon-neutralized green fuel, such as hydrogen, ammonia, methanol, are being widely discussed. However, little attention paid to the fuel pathway from renewable energy shipping. This paper, therefore, provides review production methods for power (green methanol) analyzes potential application shows that methanol (1) hydrogen seawater electrolysis using power; (2) ammonia + Haber–Bosch process; (3) CO2 power. While future is bright, short term, costs expected be than conventional fuel. Our recommendations therefore follows: improve technology reduce cost; develop electrochemical increase efficiency production; explore new technology. Strengthening research development expanding capacity ensure an adequate supply low- zero-emission marine important factors achieve carbon reduction

Language: Английский

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Renewable formate from sunlight, biomass and carbon dioxide in a photoelectrochemical cell

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Feb. 23, 2023

The sustainable production of chemicals and fuels from abundant solar energy renewable carbon sources provides a promising route to reduce climate-changing CO2 emissions our dependence on fossil resources. Here, we demonstrate solar-powered formate readily available biomass wastes feedstocks via photoelectrochemistry. Non-precious NiOOH/α-Fe2O3 Bi/GaN/Si wafer were used as photoanode photocathode, respectively. Concurrent photoanodic oxidation photocathodic reduction towards with high Faradaic efficiencies over 85% achieved at both photoelectrodes. integrated biomass-CO2 photoelectrolysis system reduces the cell voltage by 32% due thermodynamically favorable conventional water oxidation. Moreover, show solar-driven record-high yield 23.3 μmol cm-2 h-1 well robustness using hybrid photoelectrode system. present work opens opportunities for chemical fuel resources earth-sunlight, CO2.

Language: Английский

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A Bio‐Based Supramolecular Adhesive: Ultra‐High Adhesion Strengths at both Ambient and Cryogenic Temperatures and Excellent Multi‐Reusability

Advanced Science, Journal Year: 2022, Volume and Issue: 9(28)

Published: Aug. 9, 2022

Developing high-performance and reusable adhesives from renewable feedstocks is of significance to sustainable development, yet it still remains a formidable task. Herein, castor oil, melevodopa, iron ions are used as building blocks construct novel bio-based supramolecular adhesive (BSA) with outstanding adhesion performances. It prepared through partial coordination between melevodopa functionalized oil Fe3+ ions. Noncovalent interactions adherends the catechol unit contribute reinforcing adhesion, metal-ligand utilized strengthen cohesion. By combining strong tough cohesion, BSA achieves an strength 14.6 MPa at ambient temperature, record-high value among reported well best knowledge. also outperforms those cryogenic realizing another 9.5 -196 °C. In addition, displays excellent multi-reusability more than 87% original remaining even after reuse for ten times. highly anticipated that this line research will provide new insight into designing performances multi-reusability.

Language: Английский

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Modulating the Reaction Configuration by Breaking the Structural Symmetry of Active Sites for Efficient Photocatalytic Reduction of Low‐concentration CO₂

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(42)

Published: Aug. 29, 2023

Photocatalytic conversion of low-concentration CO2 is considered as a promising way to simultaneously mitigate the environmental and energy issues. However, weak adsorption tough activation process seriously compromise CO production, due chemical inertness molecule formed fragile metal-C/O bond. Herein, we designed fabricated oxygen vacancy contained Co3 O4 hollow nanoparticles on ordered macroporous N-doped carbon framework (Vo-HCo3 /OMNC) towards photoreduction . In situ spectra ab initio molecular dynamics simulations reveal that constructed able break local structural symmetry Co-O-Co sites. The formation asymmetric active site switches configuration from single-site linear model multiple-sites bending one with highly stable configuration, enhancing binding polarization molecules. As result, Vo-HCo3 /OMNC shows unprecedent activity in photocatalytic (10 % /Ar) under laboratory light source or even natural sunlight, affording syngas yield 337.8 95.2 mmol g-1 h-1 , respectively, an apparent quantum up 4.2 %.

Language: Английский

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Interlayer Spacing Regulation by Single‐Atom Indium^δ+–N₄ on Carbon Nitride for Boosting CO₂/CO Photo‐Conversion

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(35)

Published: May 17, 2023

Abstract Simultaneous optimization on bulk photogenerated‐carrier separation and surface atomic arrangement of catalyst is crucial for reactivity CO 2 photo‐reduction. Rare studies capture the detail that, better than in‐plane regulation, interlayer‐spacing regulation may significantly influence carrier transport bulk‐catalyst thereby affecting its photo‐reduction in g ‐C 3 N 4 . Herein, through a single atom‐assisted thermal‐polymerization process, single‐atom In‐bonded N‐atom (In δ + –N ) (002) crystal planes originally constructed. This In reduces interplanar spacing by electrostatic adsorption, which enhances carriers greatly promotes photoreduction. The photo‐conversion performance this resulted modified superior to other atom loaded carbon nitride catalysts. Moreover, adsorption , *COOH formation energy, optimizes reaction path. It achieves remarkable 398.87 µmol −1 h yield rate, 0.21% apparent quantum efficiency, nearly 100% selectivity without any cocatalyst or sacrificial agent. Through d modulation atom, study provides ground‐breaking insight enhancement from double‐gain view structural control ‐reduction photocatalysts.

Language: Английский

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Transition Metal Phosphide Nanoarchitectonics for Versatile Organic Catalysis

Small, Journal Year: 2023, Volume and Issue: 19(11)

Published: Jan. 17, 2023

Abstract Transition metal phosphides (TMP) posses unique physiochemical, geometrical, and electronic properties, which can be exploited for different catalytic applications, such as photocatalysis, electrocatalysis, organic catalysis, etc. Among others, the use of TMP catalysis is less explored still facing many complex challenges, necessitate development sustainable reaction protocols demonstrating high selectivity yield desired molecules significance. In this regard, controlled synthesis TMP‐based catalysts thorough investigations underlying mechanisms provide deeper insights toward practical achievement applications. This review aims at providing a comprehensive analysis on recent advancements in synthetic strategies tailored tunable engineering structural, properties TMP. addition, their unprecedented potential transformation reactions succinctly summarized critically analyzed. Finally, rational perspective future opportunities challenges emerging field provided. On account achievements accomplished using TMP, it highly anticipated that combined with advanced innovative technologies methodologies pave way large scale realization catalysis.

Language: Английский

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