Fine-tune the electronic structure in Co-Mo based catalysts to give easily coupled HER and OER catalysts for effective water splitting

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 328, С. 122474 - 122474

Опубликована: Фев. 15, 2023

Язык: Английский

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CeO2 as an “electron pump” to boost the performance of Co4N in electrocatalytic hydrogen evolution, oxygen evolution and biomass oxidation valorization

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 325, С. 122364 - 122364

Опубликована: Янв. 3, 2023

Язык: Английский

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Zn-Nx sites on N-doped carbon for aerobic oxidative cleavage and esterification of C(CO)-C bonds

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

Опубликована: Авг. 10, 2021

Abstract Selective cleavage of C-C bonds is very important in organic chemistry, but remains challenging because their inert chemical nature. Herein, we report that Zn/NC-X catalysts, which Zn 2+ coordinate with N species on microporous N-doped carbon (NC) and X denotes the pyrolysis temperature, can effectively catalyze aerobic oxidative C(CO)-C quantitatively convert acetophenone to methyl benzoate a yield 99% at 100 °C. The Zn/NC-950 be applied for wide scope derivatives as well more alkyl ketones. Detail mechanistic investigations reveal catalytic performance attributed coordination between change electronic state metal, synergetic effect single sites surrounding atoms, structure high surface area structural defects NC.

Язык: Английский

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Orbital Occupancy and Spin Polarization: From Mechanistic Study to Rational Design of Transition Metal-Based Electrocatalysts toward Energy Applications

ACS Nano, Год журнала: 2022, Номер 16(11), С. 17847 - 17890

Опубликована: Окт. 31, 2022

Over the past few decades, development of electrocatalysts for energy applications has extensively transitioned from trial-and-error methodologies to more rational and directed designs at atomic levels via either nanogeometric optimization or modulating electronic properties active sites. Regarding modulation properties, nonprecious transition metal-based materials have been attracting large interest due capability versatile tuning d-electron configurations expressed through flexible orbital occupancy various possible degrees spin polarization. Herein, recent advances in tailoring transition-metal atoms intrinsically enhanced electrocatalytic performances are reviewed. We start with discussions on how polarization can govern essential level processes, including transport electron charge bulk, reactive species adsorption catalytic surface, transfer between centers adsorbed as well reaction mechanisms. Subsequently, different techniques currently adopted structures discussed particular emphasis theoretical rationale practical achievements. also highlight promises recently established computational design approaches developing applications. Lastly, discussion is concluded perspectives current challenges future opportunities. hope this review will present beauty structure–activity relationships catalysis sciences contribute advance conversion

Язык: Английский

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Flexible carbon nanofiber film with diatomic Fe-Co sites for efficient oxygen reduction and evolution reactions in wearable zinc-air batteries

Nano Energy, Год журнала: 2021, Номер 87, С. 106147 - 106147

Опубликована: Май 25, 2021

Язык: Английский

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