Related references
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Article
Chemistry, Multidisciplinary
Yu Zhu et al.
Summary: This study aims to improve the oxygen evolution reaction (OER) activity of layered double-hydroxide (LDH) by doping with erbium (Er). The results demonstrate that the optimal Er-doped NiFe-LDH catalyst exhibits superior performance in terms of low overpotential, high turnover frequency, and low activation energy. Electrochemical and theoretical calculations provide insights into the enhanced OER kinetics through Er doping.
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Chemistry, Physical
Chuang Fan et al.
Summary: This study proposes a novel and effective strategy utilizing neodymium-evoked valence electronic perturbation to enhance and balance the reversible oxygen electrocatalysis of metallic cobalt sites. By preparing a Nd-doped metal-organic framework and an N-doped carbon substrate, a catalyst with excellent bifunctional electrocatalytic properties is achieved. This catalyst exhibits low overpotential and high half-wave potential for both oxygen evolution reaction and oxygen reduction reaction, as well as good catalytic stability and electrochemical performance.
ADVANCED ENERGY MATERIALS
(2023)
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Chen Yang et al.
Summary: The ability to measure the behavior of a single molecule during a reaction can uncover dynamic and static disordered states that may not be represented in ensemble averages. This article introduces a method to build devices with graphene-molecule-graphene single-molecule junctions integrated into an electrical circuit. These devices are stable, tolerant to mechanical changes and solution environments, and enable sensitive detection of variations in physical and chemical properties of detected molecules. The on-chip setup of single-molecule junctions also allows for logic functions and analysis of reaction intermediates.
Article
Chemistry, Physical
Xuan Wang et al.
Summary: A Mott-Schottky catalyst consisting of Er2O3-Co particles implanted into carbon nanofibers (Er2O3-Co/CNF) is designed to enhance alkaline oxygen reduction reaction (ORR) via spin-selective coupling. The optimized Er2O3-Co/CNF shows improved ORR performance compared to individual Co/CNF and Er2O3/CNF. The introduction of Er2O3 optimizes the electronic structure of Co through gradient orbital coupling, resulting in significantly enhanced ORR performance. This work provides new perspectives for the design of efficient ORR electrocatalysts by engineering spin-selective coupling induced by rare-earth oxides.
Article
Chemistry, Multidisciplinary
Wei Xiong et al.
Summary: This article summarizes the challenges and opportunities of some typical transition metal oxides (TMOs) in electrocatalysis for energy conversion and storage, and discusses the modification strategies of TMOs as electrocatalysts.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
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Chemistry, Physical
Yujie Huang et al.
Summary: By employing an Ar-plasma-assisted strategy, a new type of hierarchical spinel Co3O4 porous nanoneedle arrays with Mo substitution and oxygen vacancies were prepared and demonstrated superior performance for the oxygen evolution reaction (OER). The Mo substitution and oxygen vacancy formation were achieved through charge redistribution and d-band center modification. The resulting material, denoted P-Mo-Co3O4@CC, exhibited a low overpotential and high stability, making it a promising catalyst for water electrolysis.
Article
Chemistry, Multidisciplinary
Tingting Wang et al.
Summary: A hollow nanoframing strategy was devised for interconnected Co3O4-Mo2N heterostructures, leading to enhanced bifunctional catalytic activities due to the optimized heterointerface with strong electron interaction and favorable H2O/H* adsorption energies.
ADVANCED FUNCTIONAL MATERIALS
(2022)
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Isao Ohkubo et al.
Summary: In this study, the relationship between the charge-transfer energy and the onsite Coulomb repulsion energy with different anion species in 566 3d transition-metal compounds was investigated. The results demonstrated that these parameters can be used to classify various types of electronic structures.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
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Chemistry, Physical
Tzu-Hsien Shen et al.
Summary: This study reveals the potential-regulated hydrophobicity/hydrophilicity at cobalt-based oxide interfaces with an alkaline solution, and its direct relationship to the activity and stability towards the oxygen evolution reaction. The switchable wetting of single particles and distinctive wettability behavior associated with specific potential ranges are observed, providing fundamental insights into solid-liquid interfacial interactions of oxygen-evolving oxides.
Article
Multidisciplinary Sciences
Sanjiang Pan et al.
Summary: This study reports a cost-effective and stable manganese oxybromide catalyst with excellent oxygen evolution reaction (OER) activity in acidic electrolytes. The catalyst exhibits low overpotential and good stability, making it suitable for hydrogen production from water, and provides crucial insights for the design of non-noble metal electrocatalysts.
NATURE COMMUNICATIONS
(2022)
Review
Chemistry, Multidisciplinary
Xiaopeng Wang et al.
Summary: This article provides a comprehensive review of the oxygen redox process in the oxygen evolution reaction (OER) through lattice oxygen oxidation mechanism (LOM), and discusses the characterization techniques used to identify the oxygen redox. It explains the critical advantage and underlying science of LOM compared to the traditional adsorbate evolution mechanism (AEM) in generating higher OER activities. The article also provides insights into future developments in LOM electrocatalysts.
ADVANCED MATERIALS
(2022)
Article
Multidisciplinary Sciences
Sihong Wang et al.
Summary: This study reveals that the active sites of CoOOH nanorod catalysts are predominantly located on the lateral facets, and the specific activity of the nanorods is about 50 times higher than that of the nanosheets.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Zi-You Yu et al.
Summary: This study developed a template-assisted strategy for the synthesis of tube-like nanostructured perovskite oxides, and successfully prepared 13 catalysts with high surface areas. By systematically examining these catalysts, it was found that the OER activity in neutral solutions exhibits a volcano shape as a function of the covalency of metal-oxygen bonds. The Sm-doped LaCoO3 catalyst designed in this study showed the highest OER activity in neutral electrolytes.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
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Gang Zhou et al.
Summary: This study proposes a new approach to optimize catalysts for acidic oxygen evolution reaction. By controlling the bonding interaction, the active sites of the catalyst are transformed from symmetric low-spin states to asymmetric high-spin states, resulting in higher reaction efficiency and stability.
NATURE COMMUNICATIONS
(2022)
Review
Chemistry, Physical
Xuan Wang et al.
Summary: Research attention has shifted from transition metal and precious metal based single-atom catalysts (SACs) to rare-earth (RE) based SACs, which exhibit unique electronic structure and catalytic performance in photo/electrocatalysis. However, a systematic review on the role of RE active sites, catalytic mechanisms, and synthetic methods for RE SACs is still lacking. Therefore, this review summarizes and discusses the latest developments in RE SACs for photo/electrocatalysis, covering theoretical advantages, reaction progress, catalytic mechanisms, and synthetic strategies.
Article
Chemistry, Multidisciplinary
Xuan Wang et al.
Summary: This study proposes a novel gradient orbital coupling strategy to tune the performance of the oxygen reduction reaction (ORR). The optimized catalyst shows higher onset and half-wave potentials compared to commercial catalysts and exhibits superior selectivity and durability. It also demonstrates better performance in Zn-air batteries compared to noble-metal catalysts in terms of power/energy densities and cycle life.
ADVANCED MATERIALS
(2022)
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Multidisciplinary Sciences
Xiaopeng Wang et al.
Summary: By modifying the electronic states around the Fermi level, an efficient electron transfer process in the oxygen evolution reaction can be achieved. The proposed mechanism involves a switchable metal and oxygen redox chemistry in nickel-oxyhydroxide-based materials with light as the trigger.
Review
Chemistry, Physical
Xuan Wang et al.
Summary: This review provides a timely and comprehensive summary of major achievements regarding rare earth (RE)-based electrocatalytic materials. It discusses the development and advantages of RE-based electrocatalysts, and reviews various RE-based materials that have been developed over the last 5 years. Challenges and perspectives are also presented to guide future research on RE-based materials.
Review
Materials Science, Multidisciplinary
Shumao Xu et al.
Summary: The increasing demand for fast-charging batteries requires continual improvements in anode materials. The limitations of mainstream materials include capacity fading and safety issues caused by Li plating, as well as sluggish transport kinetics. Recent attention has focused on large-capacity anodes through modifying bonding covalency, altering electronic structure, and suppressing metal plating. This review provides an overview of the latest advancements in fast-charging anodes, including bimetal modulation, alloying anions, constructing interfacial films, and surface substituting terminal groups.
ACS MATERIALS LETTERS
(2022)
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Linchuan Guo et al.
Summary: Electrochemical conversion is an eco-friendly and controllable method for sustainable energy use. The combination of hollow structures and rare earth materials enhances the efficiency and selectivity of electrocatalysts.
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Chemistry, Multidisciplinary
Chang-Xin Zhao et al.
Summary: This study reveals the anionic regulation mechanism of sulfide electrocatalysts under working oxygen evolution conditions, leading to the formation of a stable oxysulfide structure as the actual active site for oxygen evolution electrocatalysis. This finding provides a fundamental understanding of surface reconstruction and active sites of sulfide oxygen evolution electrocatalysts and inspires the design of advanced multi-anion compounds for rational electrocatalysis.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Zhijuan Li et al.
Summary: In this study, a promising strategy utilizing organometallic coordination polymers is proposed to construct highly active and stable catalysts for oxygen evolution reaction (OER). By controlling the thickness of the carbon layer, the optimized Ni3Fe@N-C catalyst exhibits low overpotentials, improved kinetics, and long-term stability. This research provides a new approach for developing efficient and cost-effective catalysts.
ADVANCED POWDER MATERIALS
(2022)
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Chemistry, Inorganic & Nuclear
Lan Sun et al.
Summary: Water electrolysis is crucial for hydrogen generation, requiring efficient electrocatalysts; Recent advancements include strategies like nanoarchitecturing and heteroatomic doping to enhance electrocatalyst performance; Challenges and opportunities lie ahead for improving water splitting performance.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Chemistry, Physical
Daniel Adjei Agyeman et al.
Summary: The study utilized a precisely surface-engineered model catalyst, perovskite (LaMnO3), to investigate the catalytic nature of oxide catalysts in aprotic Li-O-2 batteries. It was found that the collective redox of lattice oxygen and transition metal on the catalyst surface plays a crucial role in determining the electrochemical performance of the catalyst in Li-O-2 batteries.
Article
Multidisciplinary Sciences
Gang Wan et al.
Summary: Investigated the interfacial transformation of the SrIrO3 OER electrocatalyst and its structural evolution, revealing that the structural reorganization facilitated by coupled ionic diffusions is essential to the disordered structure of the SrIrO3 electrocatalyst.
Article
Chemistry, Physical
Yu Sun et al.
Summary: Perovskite oxides, with a refined A-site management strategy, can enhance OER performance through promoting the surface reconstruction of the active phase. The A-site Ce doping in particular shows a strong correlation with the dynamic structure-activity relationship during OER, providing insights for accurate design of high-efficiency perovskite OER electrocatalysts.
ADVANCED ENERGY MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Hai Liu et al.
Summary: By constructing pyrochlore rare-earth ruthenate structures with a series of rare-earth elements (Nd, Sm, Gd, Er, and Yb), the electronic structure of the Ru sites could be tuned, leading to an improved OER performance in acid media by reducing the strong bonding between Ru sites and oxygen intermediates. Among them, Nd2Ru2O7 exhibited the lowest OER onset overpotential and Tafel slope, along with significantly higher intrinsic activity and durability compared to RuO2 catalyst.
SCIENCE CHINA-MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Leigang Li et al.
Summary: This Progress Report summarizes recent research progress in advanced electrocatalysts for improved acidic OER performance. It discusses fundamental understanding about acidic OER including reaction mechanisms and atomic understanding for rational design of efficient electrocatalysts. It also provides an overview of the progress in the design and synthesis of advanced acidic OER electrocatalysts in terms of catalyst category.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yi Huang et al.
Summary: The study successfully designed and synthesized optimized porous Co-based trimetallic spinel oxide nanoboxes with superior electrocatalytic performance for the oxygen evolution reaction. The structural and compositional advantages enable the nanoboxes to exhibit excellent performance in alkaline electrolyte.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
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Chemistry, Multidisciplinary
Tengyuan Dai et al.
Summary: Structural engineering and compositional controlling are crucial in designing advanced freestanding electrocatalysts. The spatial distribution of components plays a significant role in enhancing electrocatalysis performance, with CeO2-CoS1.97 and CoS1.97-CeO2 materials showing different behaviors in the oxygen evolution reaction.
ADVANCED MATERIALS
(2021)
Article
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Qi Wang et al.
Summary: The study presents a novel design of iridium single atoms on Ni2P catalyst with excellent activity in OER. Experimental results and computational simulations highlight the crucial role of the optimized Ir-O-P/Ni-O-P bonding environment in enhancing OER activity. Additionally, the dynamic top-down evolution of the structure ensures the stability of the catalyst.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Multidisciplinary Sciences
Jinzhen Huang et al.
Summary: Developing efficient and stable earth-abundant electrocatalysts for acidic oxygen evolution reaction is challenging. Here, the authors modify the local bonding environment of Co3O4 by CeO2 nanocrystallites to regulate the redox properties, thus enhance the catalytic activity.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Zhaoping Shi et al.
Summary: This study demonstrates that a single-site Ir doping strategy can enhance the activity and stability of oxygen evolution reaction by increasing Ir-O covalency and locally triggered LOM mechanism, achieving structural stability of the catalyst during OER.
Article
Chemistry, Multidisciplinary
Liang Mei et al.
Summary: A micellar system was used to prepare Pt-TMDs composites with tunable Pt nanoparticles on single-layer TMDs nanosheets. The Pt-MoS2 composites exhibited excellent performance for the hydrogen evolution reaction, with the Pt nanoparticles showing a volcano-type size effect towards HER activity due to synergistic effects with MoS2.
CHEMICAL COMMUNICATIONS
(2021)
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I Leonov et al.
Summary: By studying the electronic structure, magnetic properties, and surface energies of the (001) and (110) surfaces of NiO, we reveal a complex interplay between electron-electron correlations and surface effects, with a potential higher catalytic activity on the (110) NiO surface compared to the (001) NiO surface. Our results also demonstrate a novel form of electronic order stabilized by strong correlations on the (110) NiO surface.
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