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Article
Chemistry, Multidisciplinary
Rongrong Zhang et al.
Summary: This study reveals the importance of defect-induced reconstruction for the oxygen evolution reaction (OER) in Co3O4 catalysts. The results show that O and Co vacancies promote mismatched rates of *OH adsorption and deprotonation, leading to irreversible catalyst reconstruction. Furthermore, O and Co defects trigger highly OER-active bridge Co sites and Co defects exhibit the best OER activity under compressive lattice stress. This work highlights the potential of defect-dependent reconstruction for rational electrocatalyst design in energy-related applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
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.
Article
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)
Article
Chemistry, Multidisciplinary
Meng Li et al.
Summary: In this work, a high-performance P-Ce SAs@CoO catalyst was designed and synthesized, and its oxygen evolution reaction (OER) mechanism and active sites were investigated through experimental and theoretical analysis. The results provide a basis for the structural design and mechanistic understanding of high-performance RE-TMO catalysts.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Leilei Yin et al.
Summary: This study reports cerium single atoms (Ce SAs) supported on a P, S, and N co-doped hollow carbon substrate (Ce SAs/PSNC) for the oxygen reduction reaction (ORR). The Ce SAs/PSNC exhibits excellent ORR stability and outperforms commercial Pt/C and most recent SACs. Ce SAs/PSNC-based liquid zinc-air batteries (ZABs) show a high and stable open-circuit voltage and a maximum power density. Theoretical calculations reveal that the introduction of S and P sites significantly modulate the electronic properties of Ce SA active sites, promoting the electroactivity of Ce SAs within the Ce SAs/PSNC.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Bin He et al.
Summary: A three-dimensional core-shell heterostructure of NiTe/NiCo-LDH electrocatalyst was reported to address the low electronic conductivity and self-aggregation issues of NiCo layered double hydroxides, showing enhanced activity for the Oxygen evolution reaction. The strong interface effects between the NiTe nanorod core and NiCo-LDH nanosheet shell contributed to the superior electrocatalytic performance, with a significantly smaller overpotential than single-component catalysts.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Multidisciplinary Sciences
Zhaoping Shi et al.
Summary: The reaction route plays a crucial role in determining the stability and catalytic performance of ruthenium-based catalysts. By controlling the charge of ruthenium, the reaction route can be customized, leading to improved stability and lifespan of the catalysts in electrolyzers.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Lu Li et al.
Summary: By engineering the electronic structure of Nd0.1RuOx, the oxygen evolution activity in acidic solution can be enhanced, and the dissolution of ruthenium can be effectively suppressed, thus providing a design strategy for active and durable catalysts in proton exchange membrane electrolyzers.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
B. Zhang et al.
Summary: This study investigates the crystal structures, optical properties, electronic structures, and photocatalysis capacities of twenty-one different vanadates. The results reveal that AgVO3-C2/m shows the best visible-light absorption, while SrVO3-Pm3m, LaVO3-Pnma, LaVO3-P21/n, CrVO4-Cmcm, and FeVO4-P1 are competitive in photo-electric conversion. Additionally, the unique electronic structure of LuVO4-I41/amd is discovered, which drives the HER reaction through the metallic ground state and incomplete occupation of Lu 4 fz3 orbital. Furthermore, the effect of crystal field splitting on electron configurations and d-d electron transitions between orbitals is proposed as a novel research route for the photocatalysis capacities of other vanadates.
MATERIALS TODAY CHEMISTRY
(2023)
Article
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
Yonggui Zhao et al.
Summary: The rational design of efficient electrocatalysts for industrial water splitting is crucial for sustainable hydrogen fuel generation. In this study, hierarchically nanostructured Co@CoFe-P NBs were introduced as alternative electrocatalysts for industrial-scale applications. Operando analysis and theoretical calculations revealed the catalytic mechanisms of these electrocatalysts in hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), providing important insights for future energy conversion and storage.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Zhenyuan Liu et al.
Summary: The development of a bifunctional electrocatalyst with CeO2-decorated Co nanoparticles supported on three-dimensionally porous carbon aerogels (Co-CeO2/C aerogels) showed outstanding electrochemical performance for both OER and ORR. The superior performance can be attributed to the multihole heterostructure, multiple components, and abundant oxygen vacancies, enabling efficient adsorption and catalyzation of reactants and mass transport of reagents/products.
Article
Multidisciplinary Sciences
Woong Hee Lee et al.
Summary: The phase and spin state of Co-based catalysts significantly impact the catalytic activity for oxygen evolution reaction. This study demonstrates a simple reconstruction strategy to fabricate electrodes with specific phase and spin state, which is proven to be effective through computational calculations and experimental studies.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Jiangchao Liu et al.
Summary: This study systematically investigates the regulation of hydrogen adsorption by d-d orbital interaction of metallic tungsten dioxide and demonstrates that optimizing hydrogen adsorption via d-d orbital modulation is an effective approach to developing efficient and robust catalysts.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Applied
Meng Li et al.
Summary: This article reports a novel and efficient electrocatalyst Ce-Ni3N@CC, which optimizes the UOR kinetics, reduces operation voltage, and provides cost-effective electrons. The catalyst exhibits superior catalytic performance and offers a promising design strategy for the future development of energy-related devices.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Physical
Tehua Wang et al.
Summary: This study presents a hydrogen production system that combines anodic and cathodic H-2 production from low-potential aldehyde oxidation and the hydrogen evolution reaction, respectively, at a low voltage of about 0.1V. Unlike conventional aldehyde electrooxidation, the low-potential aldehyde oxidation enables the hydrogen atom to recombine into H-2 gas. The assembled electrolyser requires only about 0.35 kWh of electricity input per m(3) of H-2, providing a promising avenue for the safe, efficient and scalable production of high-purity hydrogen.
Article
Engineering, Environmental
Chuang Fan et al.
Summary: This study proposes an effective and novel surface chemical reconstruction strategy to optimize the electrocatalytic performance of inverse-spinel manganese cobalt oxide (MnCo2O4) towards oxygen evolution reaction (OER). The strategy involves the synthesis of MnCo2O4/CeO2 heterostructure through a facile and effective method, which triggers surface chemical reconstruction, creates more active sites, and improves catalytic activity and stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Lei Wan et al.
Summary: The study proposes an air-breathing strategy to improve the energy conversion efficiency and durability of zinc-air batteries (ZABs) by significantly enlarging triple-interfaces. By dipcoating the aerophilic perfluorochemical compounds (PFC) and amphiphilic ionomers into the self-supported electrodes, the study demonstrates high power density and long-cycling durability for the ZABs.
Article
Multidisciplinary Sciences
Wenhui He et al.
Summary: In this study, a design concept of tandem catalysts was proposed to achieve cascade conversion of waste nitrate to valuable ammonia using different transition metal phases. By transforming Cu-Co binary sulfides into Cu/CuOx and Co/CoO phases, efficient NH3 synthesis was achieved. The tandem catalyst system exhibited high Faradaic efficiency and NH3 yield rate in the presence of waste nitrate, and surpassed previous studies in terms of energy efficiency.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Hongming Sun et al.
Summary: This study develops efficient and stable Ni/Ln(2)O(3) hybrid electrocatalysts for industrial alkaline water electrolysis. The introduced Ln(2)O(3) promoter greatly enhances the active-site density, reduces the energy barrier of water dissociation, optimizes the free energy of hydrogen adsorption, and prevents the oxidation corrosion of Ni. The Ni/Yb2O3 catalyst outperforms metallic Ni and Pt/C catalysts in terms of low overpotential, low Tafel slope, and excellent long-term durability.
NATURE COMMUNICATIONS
(2022)
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)
Article
Chemistry, Multidisciplinary
Jintao Zhang et al.
Summary: A novel atomic-scale nonbonding active structure (Pt-O-x)-(Co-O-y) has been designed and constructed on oxygen-rich coal tar pitch-derived carbon supports. It exhibits high mass activities for hydrogen evolution reactions and oxygen reduction reactions, which are several times higher than commercial 20% Pt/C.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Aamir Hassan Shah et al.
Summary: The kinetics of platinum-catalysed hydrogen evolution reaction (HER) in alkaline electrolyte is poor, mainly due to the complexity of the platinum-water interface caused by the presence of alkali metal cations. The alkali metal cations have different effects on the destabilization of hydroxyl adsorbate species, which in turn affects the HER kinetics.
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)
Article
Chemistry, Multidisciplinary
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.
Article
Chemistry, Multidisciplinary
Minghui Ning et al.
Summary: Electrochemical reconstruction was used to synthesize bifunctional catalysts Fe-0.01-Ni&Ni0.2Mo0.8N and Fe-0.01&Mo-NiO with state-of-the-art HER and OER performance. The electrolyzer based on these catalysts exhibited record-high performance for seawater electrolysis and good durability under harsh industrial conditions.
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)
Article
Chemistry, Multidisciplinary
Zhongtao Li et al.
Summary: A Co-V oxide structure has been successfully established to eliminate the energy barrier caused by sluggish charge carrier transfer mobility during the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), and to stimulate the OER through a more effective lattice oxygen oxidation mechanism.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Ying Wang et al.
Summary: A lattice-matching growth strategy is demonstrated for conductive MOF/LDH heteronanotube arrays, enabling ultraefficient oxygen evolution reaction. The optimized heteronanotube arrays exhibit extraordinary electrocatalytic activity and show promise as practical materials for water electrolysis.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Tomasz Kosmala et al.
Summary: The study found that thin iron films covered with monolayer graphene exhibit superior catalytic activity for the hydrogen evolution reaction compared to platinum. By evaluating noise in the tunnelling current of electrochemical scanning tunnelling microscopy, researchers discovered the exceptional activity of single iron atoms trapped within carbon vacancies and curved graphene areas on step edges. Density functional theory calculations further confirmed this sequence of activity.
Article
Multidisciplinary Sciences
Christian T. Wolowiec et al.
Summary: Electrical resistivity measurements were performed on single crystals of URu2-xOsxSi(2) up to x = 0.28 under hydrostatic pressure up to 2 GPa, revealing that increasing Os concentration leads to lattice expansion, enhanced hidden-order (HO) phase, and a shift towards a large-moment antiferromagnetic (LMAFM) phase. Pressure, Fe substitution, and Os substitution are the only known perturbations that enhance the HO phase and induce the first-order transition to the LMAFM phase in URu2Si2.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Multidisciplinary Sciences
Tianze Wu et al.
Summary: This study introduces a strategy of spin pinning to increase the spin alignment in paramagnetic oxyhydroxides, aiming to enhance the OER activity, and confirms the spin effect in the rate-limiting OER step.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Hao Li et al.
Summary: The oxygen reduction reaction (ORR) is crucial for fuel cell performance, with TMOs offering operational stability but lower activity compared to Pt-based electrocatalysts. The challenges in finding TMOs with high ORR activity lie in weaker oxygen binding on TMO surfaces and stronger electric field effects, making O-O bond breaking difficult. Experimental screening of 7,798 unique TMO compositions confirmed their lower activity compared to Pt.
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Jiale Xia et al.
ADVANCED FUNCTIONAL MATERIALS
(2020)
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Erping Cao et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
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Zhaoyan Luo et al.
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(2020)
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Meng Li et al.
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(2020)
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Zhenyuan Liu et al.
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Vasanth Rajendiran Jothi et al.
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ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
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Meng Li et al.
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Energy & Fuels
Ian T. McCrum et al.
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Xiong Liu et al.
CELL REPORTS PHYSICAL SCIENCE
(2020)
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Panlong Zhai et al.
NATURE COMMUNICATIONS
(2020)
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Yaru Ma et al.
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Zhen-Feng Huang et al.
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Kai S. Exner et al.
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Jinwhan Joo et al.
ADVANCED MATERIALS
(2019)
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Zexing Wu et al.
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Yue Zhang et al.
ACS ENERGY LETTERS
(2018)
Review
Energy & Fuels
Gaurav Assat et al.
Review
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CHEMICAL SOCIETY REVIEWS
(2017)
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ENERGY & ENVIRONMENTAL SCIENCE
(2016)
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Don-Hyung Ha et al.