Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160375 - 160375
Опубликована: Фев. 1, 2025
Язык: Английский
Carbon Neutralization, Год журнала: 2024, Номер 3(2), С. 172 - 198
Опубликована: Фев. 26, 2024
Abstract Water splitting is a critical process for the production of green hydrogen, contributing to advancement circular economy. However, application water devices on large scale primarily impeded by sluggish oxygen evolution reaction (OER) at anode. Thus, developing and designing efficient OER catalysts significant target. NiFe‐based are extensively researched as excellent electrocatalysts due their affordability, abundant reserves, intrinsic activities. they still suffer from long‐term stability challenges. To date, few systematic strategies improving durability have been reported. In this review, various advanced introduced. Moreover, challenges in alkaline media, including iron segregation, structural degradation, peeling substrate summarized. More importantly, enhance highlighted opportunities discussed facilitate future studies electrolysis. This review presents design strategy anion exchange membrane (AEM) electrolyzers overcome OER, which also emphasizes importance media its significance achieving large‐scale commercialization.
Язык: Английский
Процитировано
39
Progress in Materials Science, Год журнала: 2024, Номер 145, С. 101294 - 101294
Опубликована: Апрель 5, 2024
Язык: Английский
Процитировано
34
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(11)
Опубликована: Янв. 22, 2024
Abstract Metal‐organic frameworks (MOFs) have emerged as promising oxygen evolution reaction (OER) electrocatalysts. Chemically bonded MOFs on supports are desirable yet lacking in routine synthesis, they may allow variable structural and the underlying structure‐activity relationship to be disclosed. Herein, direct MOF synthesis is achieved by an organic acid‐etching strategy (AES). Using π‐conjugated ferrocene (Fc) dicarboxylic acid etching agent ligand, a series of MFc‐MOF (M=Ni, Co, Fe, Zn) nanosheets synthesized metal supports. The crystal structure studied using X‐ray diffraction low‐dose transmission electron microscopy, which quasi ‐lattice‐matched with that metal, enabling situ growth. Operando Raman attenuated total reflectance Fourier transform infrared spectroscopy disclose NiFc‐MOF features dynamic rebuilding during OER. reconstructed one showing optimized electronic structures upshifted d ‐band center, high M−O bonding state occupancy, localized electrons adsorbates indicated density functional theory calculations, exhibits outstanding OER performance fairly low overpotential (130 mV at 10 mA cm −2 ) good stability (144 h). newly established approach for reconstruction disclosure stimulate development more prudent catalysts advancing
Язык: Английский
Процитировано
33
Advanced Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 19, 2025
Abstract Efficient charge separation at the semiconductor/cocatalyst interface is crucial for high‐performance photoelectrodes, as it directly influences availability of surface charges solar water oxidation. However, establishing strong molecular‐level connections between these interfaces to achieve superior interfacial quality presents significant challenges. This study introduces an innovative electrochemical etching method that generates a high concentration oxygen vacancy sites on BiVO 4 surfaces (Ov‐BiVO ), enabling interactions with oxygen‐rich ligands MIL‐101. reduces formation energy and promotes conformal growth . The Ov‐BiVO /MIL‐101 composite exhibits ideal interface, achieving impressive photocurrent density 5.91 mA cm −2 1.23 V RHE , along excellent stability. high‐performing photoanode enables unbiased tandem device /MIL‐101‐Si cell system, solar‐to‐hydrogen efficiency 4.33%. integration mitigates states enhances internal electric field, facilitating migration photogenerated holes into MIL‐101 overlayer. process activates highly efficient Fe catalytic sites, which effectively adsorb molecules, lowering barrier oxidation improving kinetics. Further studies confirm broad applicability vacancy‐induced molecular epitaxial in various MOFs, offering valuable insights defect engineering optimizing enhancing photocatalytic activity.
Язык: Английский
Процитировано
9
Chemical Reviews, Год журнала: 2025, Номер unknown
Опубликована: Фев. 18, 2025
The electrocatalytic technique, as an efficient energy storage and conversion technology, has attracted significant attention to address exhaustion environmental pollution. Usually, the activity selectivity of reactions are largely dominated by dynamic process occurring on electrocatalysts. Therefore, high-performance electrocatalysts, which can dominate pathway barrier reactions, great significance for advancement technique. Metal-organic frameworks (MOFs), emerging crystalline porous materials, present structural component advantages including well-defined structure, high surface area, large porosity, diverse components, easy tailorability, demonstrating fantastic potential precise fabrication In this Review, strategies in electrocatalysts based MOF-related materials specifically introduced from aspects catalytic site design microenvironment modulation around sites. Furthermore, representative progress achieved various applications employing MOF-based is systematically summarized, with special emphasis MOFs performance optimization. Finally, remaining challenges future perspectives further highlighted.
Язык: Английский
Процитировано
8
Science China Chemistry, Год журнала: 2023, Номер 66(10), С. 2754 - 2779
Опубликована: Сен. 11, 2023
Язык: Английский
Процитировано
34
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(36)
Опубликована: Июнь 12, 2024
The development of readily accessible and interpretable descriptors is pivotal yet challenging in the rational design metal-organic framework (MOF) catalysts. This study presents a straightforward physically activity descriptor for oxygen evolution reaction (OER), derived from dataset bimetallic Ni-based MOFs. Through an artificial-intelligence (AI) data-mining subgroup discovery (SGD) approach, combination d-band center number missing electrons e
Язык: Английский
Процитировано
16
Small, Год журнала: 2024, Номер 20(43)
Опубликована: Июнь 27, 2024
Abstract Electrocatalysis is a crucial method for achieving global carbon neutrality, serving as an essential means of energy conversion, and electrocatalyst in the process electrocatalysis. Because abundant active sites, multi‐component synergistic effect high‐entropy materials has wide application prospect field Moreover, due to special structure materials, it possible obtain almost continuous adsorption distribution by regulating composition, which attracted extensive attention researchers. This paper reviews properties types including alloys compounds. The synthesis strategies are systematically introduced, solid phase synthesis, liquid‐phase gas‐phase classified summarized. electrocatalysis summarized, promotion strategy various catalytic reaction processes Finally, current progress problems encountered, future development direction reviewed. It emphasized that high flux density functional theory calculation guiding catalyst design will be great significance
Язык: Английский
Процитировано
15
Angewandte Chemie, Год журнала: 2024, Номер 136(11)
Опубликована: Янв. 22, 2024
Abstract Metal‐organic frameworks (MOFs) have emerged as promising oxygen evolution reaction (OER) electrocatalysts. Chemically bonded MOFs on supports are desirable yet lacking in routine synthesis, they may allow variable structural and the underlying structure‐activity relationship to be disclosed. Herein, direct MOF synthesis is achieved by an organic acid‐etching strategy (AES). Using π‐conjugated ferrocene (Fc) dicarboxylic acid etching agent ligand, a series of MFc‐MOF (M=Ni, Co, Fe, Zn) nanosheets synthesized metal supports. The crystal structure studied using X‐ray diffraction low‐dose transmission electron microscopy, which quasi ‐lattice‐matched with that metal, enabling situ growth. Operando Raman attenuated total reflectance Fourier transform infrared spectroscopy disclose NiFc‐MOF features dynamic rebuilding during OER. reconstructed one showing optimized electronic structures upshifted d ‐band center, high M−O bonding state occupancy, localized electrons adsorbates indicated density functional theory calculations, exhibits outstanding OER performance fairly low overpotential (130 mV at 10 mA cm −2 ) good stability (144 h). newly established approach for reconstruction disclosure stimulate development more prudent catalysts advancing
Язык: Английский
Процитировано
12
Coordination Chemistry Reviews, Год журнала: 2024, Номер 522, С. 216235 - 216235
Опубликована: Окт. 1, 2024
Язык: Английский
Процитировано
12