Co3O4/stainless steel catalyst with synergistic effect of oxygen vacancies and phosphorus doping for overall water splitting

Tungsten, Год журнала: 2022, Номер 5(1), С. 100 - 108

Опубликована: Апрель 13, 2022

Язык: Английский

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Active-site and interface engineering of cathode materials for aqueous Zn—gas batteries

Nano Research, Год журнала: 2022, Номер 16(2), С. 2325 - 2346

Опубликована: Сен. 27, 2022

Язык: Английский

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Engineering Nonprecious Metal Oxides Electrocatalysts for Two‐Electron Water Oxidation to H₂O₂

Advanced Energy Materials, Год журнала: 2022, Номер 12(32)

Опубликована: Июль 15, 2022

Abstract Hydrogen peroxide (H 2 O ) is a valuable chemical oxidant which has been extensively applied in water treatment, textile/paper bleaching, medical disinfection, and other industrial fields. Electrocatalytic two‐electron oxidation reaction (2e‐WOR) with renewable energy inputs an attractive route to produce H , avoids the energy‐intensive anthraquinone process industry. However, leveraging these advances requires development of efficient selective electrocatalysts accelerate sluggish kinetics. In particular, nanostructured engineering nonprecious metal oxides offers promising for 2e‐WOR. this review, recent progress on nanostructure various 2e‐WOR reviewed, along remarks challenges perspectives. The fundamental understanding by density functional theory calculations operando characterizations first given, followed discussion diverse quantification methods including ultraviolet–visible spectrophotometry, titration, colorimetric strips, special emphasis their accuracy, detection limit stability. Afterward, strategies toward high‐performance doping, defect, facet, interface are overviewed. Future opportunities proposed finally.

Язык: Английский

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Efficient Electron Transfer from an Electron‐Reservoir Polyoxometalate to Dual‐Metal‐Site Metal‐Organic Frameworks for Highly Efficient Electroreduction of Nitrogen

Advanced Functional Materials, Год журнала: 2023, Номер 33(28)

Опубликована: Апрель 4, 2023

Abstract Precise design and construction of catalysts with satisfied performance for ambient electrolytic nitrogen reduction reaction (e‐NRR) is extremely challenging. By in situ integrating an electron‐rich polyoxometalates (POMs) into stable metal organic frameworks (MOFs), five POMs‐based MOFs formulated as [Fe x Co y (Pbpy) 9 (ox) 6 (H 2 O) ][P W 18 O 62 ]·3H (abbreviated Fe MOF‐P ) are created directly used e‐NRR. Their electrocatalytic performances remarkably improved thanks to complementary advantages promising possibilities POMs. In particular, NH 3 yield rates 47.04 µg h −1 mg cat. Faradaic efficiency 31.56% by FeCoMOF‐P e‐NRR significantly enhanced a factor 4 3, respectively, compared the 0.5 (Pbpy)(ox)] ·(Pbpy) . The cyclic voltammetry curves, density functional theory calculations Fourier‐transform infrared spectroscopy confirm that there directional electron channel from P unit accelerate transfer electrons. And introduction bimetals ‐based can reduce energy *N H step, thereby increasing production More importantly, this POM embedding strategy be extended create other performances, which opens new avenue future breakthrough bottleneck

Язык: Английский

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Superwettable Surface-Dependent efficiently electrocatalytic water splitting based on their excellent liquid adsorption and gas desorption

Chemical Engineering Journal, Год журнала: 2022, Номер 452, С. 139513 - 139513

Опубликована: Окт. 3, 2022

Язык: Английский

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