Related references
Note: Only part of the references are listed.
Article
Chemistry, Multidisciplinary
Han Wu et al.
Summary: High-entropy compounds with multiple components have great potential and have attracted attention in various fields. However, it is difficult to achieve stability and synthesis of high-entropy compounds due to their high complexity. In this study, a design strategy was proposed to stabilize the compound structures by using one metal site to accommodate different elements. Several typical metal compounds with bimetallic sites have been synthesized into high-entropy compounds, including perovskite hydroxides, layered double hydroxide, spinel sulfide, perovskite fluoride, and spinel oxides. High-entropy perovskite hydroxides (HEPHs) have been successfully synthesized with a wide range of components, even a septenary component, and exhibit great oxygen evolution activity. This work provides a design platform for the development of high-entropy compound systems with potential for electrocatalysts.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Multidisciplinary Sciences
Huanyu Jin et al.
Summary: In this study, a new heteroatom-doping method is reported, which utilizes dynamic electron accepting-donating to enhance the activity and stability of RuO2 catalysts for acidic oxygen evolution reaction.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Zhen-Yu Wu et al.
Summary: A nickel-stabilized ruthenium dioxide catalyst (Ni-RuO2) is reported as a promising alternative to iridium for proton exchange membrane water electrolysis, with high activity and durability in acidic oxygen evolution reaction. Density functional theory studies and operando mass spectroscopy analysis confirm the stabilization effect of nickel on the catalyst lattice, improving the durability of the oxygen evolution reaction.
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
Deshuang Yu et al.
Summary: This study presents a scalable production method for inexpensive, efficient, and robust catalysts for oxygen evolution reaction (OER) by in situ growing a series of metal oxides coupled with Fe2O3 on iron foam via an ultrafast combustion approach. The optimized Ni(OH)2/Fe2O3 catalyst can deliver a high current density of 1000 mA cm-2 at the low overpotential of 271 mV in 1.0 M KOH for up to 1500 h.
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
Hanzhi Yu et al.
Summary: In this study, hierarchical Fe doped cobalt selenide coupled with FeCo layered double hydroxide (Fe-Co0.85Se/FeCo LDH) array was designed as a self-supported superior bifunctional heterojunction electrode for efficient urea oxidation reaction (UOR) and hydrogen evolution reaction (HER) under high current density. The unique heterostructure improved reaction kinetics and intrinsic activity through electron transfer and interface interactions. The interfacial bonding of the heterojunction induced adjustable electronic environment for water decomposition of HER and stabilizing intermediates in UOR, leading to a low potential for hydrogen generation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yixin Hao et al.
Summary: An efficient catalyst comprised of highly dispersed FeNi oxide heterojunctions anchored on nickel foam is synthesized using an ultrafast solution combustion strategy. This catalyst exhibits excellent stability and activity at large current densities for anodic organic upgrading, and achieves high faradaic efficiency in methanol electrooxidation.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
Guo Huang et al.
Summary: This study reports the synthesis of a Co2P-CoxOy (CoxOy = CoO or Co3O4) heterogeneous nanoparticle-anchored porous carbon network electrocatalyst via one-pot heat treatment. The Co2P-Co3O4/C exhibited superior electrochemical activity with low overpotentials for both hydrogen (HER) and oxygen (OER) evolution reactions. Furthermore, the Co2P-Co3O4/C also showed outstanding activity for overall water splitting and maintained stability over long-term electrocatalysis.
Review
Chemistry, Physical
Yuhao Chen et al.
Summary: This review systematically reviews the recent advancements and developments of proton exchange membrane water electrolyzer (PEMWE) technology, discussing key components and the design of membrane electrode assembly, as well as exploring current challenges and future perspectives for PEMWE development.
Review
Chemistry, Multidisciplinary
Nan Jiang et al.
Summary: This review discusses the ongoing development of OER electrocatalysts under near pH-neutral CO2-saturated solutions, emphasizing the need for high-performance and cost-effective catalysts suitable for CO2RR conditions. It highlights the importance of exploring new opportunities in this field for addressing the challenges posed by the sluggish kinetics of OER in implementing renewable approaches for energy production and climate change mitigation.
ADVANCED MATERIALS
(2022)
Article
Engineering, Environmental
Xueqian Wang et al.
Summary: The novel Mn2P-Mn2O3/PNCF catalyst exhibits high stability and efficiency in alkaline electrolytes for both hydrogen evolution reactions and oxygen evolution reactions. Its outstanding performance is attributed to the abundant heterogeneous interfaces, optimized electronic configurations, and hierarchical pore structure.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Jinliang Zhu et al.
Summary: Transition metal phosphides and oxides are used as inexpensive alternatives for precious metal catalysts in electrochemical reactions. This study reports the synthesis of a Cu3P-Cu2O Janus bifunctional catalyst in a N, P-doped 3D hierarchically porous carbon framework (Cu3P-Cu2O/NPC), which shows superior activity and stability in the HER and OER processes. The designed Cu3P-Cu2O/NPC catalyst demonstrates low overpotentials and high current densities, making it a promising electrocatalyst for future industrial applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Haneul Jin et al.
Summary: The study found that by controlling the mixture of Pt atoms with the RuO2 matrix in acidic water electrooxidation, the durability and activity of RuO2 can be improved, resulting in the preparation of highly efficient PtCo-RuO2/C nanorods. These nanorods show lower overpotential and strong mass activity in half-cell tests, while also exhibiting long-term stability. Additionally, Pt dopants promote the adsorption and deprotonation processes in the oxygen evolution reaction, thereby limiting Ru overoxidation.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Lianhai Zu et al.
Summary: In this work, ultrathin Ir-IrOx/C nanosheets with ordered interlayer space were synthesized through a nanoconfined self-assembly strategy, exhibiting enhanced catalytic activity for acidic oxygen evolution reactions. The nanosheets showed one of the lowest overpotential during OER in an acid medium, benefiting from their mixed-valence states, rich electrophilic oxygen species, and favorable mesostructured architectures. This study opens a new avenue for designing high-performance 2D ordered mesoporous electrocatalysts for water oxidation and beyond through a nanoconfined self-assembly strategy.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Energy & Fuels
Ya-Rong Zheng et al.
Summary: This study presents a low-iridium mass-selected iridium-tantalum oxide catalyst with high intrinsic activity for acid environments, aiming to improve the efficiency of hydrogen production in water electrolysers. By carefully evaluating oxygen production, the researchers demonstrate that the catalyst exhibits higher activity compared to commercial IrO2.
Article
Chemistry, Multidisciplinary
Shu-Chao Sun et al.
Summary: We report the strong catalyst-support interaction between WC-supported RuO2 nanoparticles and carbon nanosheets, which greatly enhances the activity of the oxygen evolution reaction. Theoretical calculations show that the interaction optimizes the electronic structure of Ru sites, reducing the reaction barrier. The catalyst also exhibits excellent catalytic ability for hydrogen production and water splitting electrolyzers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Multidisciplinary
Hao Cui et al.
Summary: A high-efficiency electrocatalyst of ruthenium-decorated nickel-iron hydroxide (10Ru-NiFe LDH) was synthesized for oxygen evolution reaction (OER). The 10Ru-NiFe LDH showed fast OER kinetics with a small overpotential and high stability, attributed to the increased active sites and synergistic electronic interactions.
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)
Article
Chemistry, Physical
Feng Hu et al.
Summary: This study reports a simple method to synthesize efficient bifunctional electrocatalysts that exhibit high catalytic activity and stability in alkaline oxygen/hydrogen evolution reactions. The catalysts have been designed and fabricated with an optimized structure and nanoporous morphology, resulting in low overpotential and high current density.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Ding Chen et al.
Summary: Water electrolysis for hydrogen production is limited by high energy consumption. In this study, a bifunctional Ru@MoO(S)(3) nano-capsule structure electrocatalyst was designed and built, which showed stability and high catalytic activity for water splitting in both acidic and alkaline environments.
Article
Chemistry, Multidisciplinary
Juan Wang et al.
Summary: This study reports a new strategy to stabilize RuO2 by introducing interstitial carbon and successfully develops a stable OER electrocatalyst. The optimized catalyst exhibits low overpotential and long-term stability, indicating its potential application in water splitting.
Article
Multidisciplinary Sciences
Juan Wang et al.
Summary: In this study, hollow Pt-doped RuO2 nanospheres with interstitial carbon were reported as highly active and stable electrocatalysts for overall water splitting. These catalysts exhibited superior performance compared to most reported catalysts and showed promising stability during continuous operation.
Article
Chemistry, Multidisciplinary
Yuxiao Gao et al.
Summary: Efficient and stable electrocatalysts with trifunctional catalytic activity are crucial for sustainable energy development. In this study, Co3O4-RuO2 hollow spheres were fabricated using a facile and eco-friendly method, and they showed small overpotentials in hydrogen evolution reaction, oxygen evolution reaction, and oxygen reduction reaction. Furthermore, these hollow spheres exhibited superior catalytic performances in water-splitting and rechargeable Zn-air batteries.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Multidisciplinary Sciences
Yiming Zhu et al.
Summary: In this study, iridium single atoms incorporated cobalt oxides were successfully prepared by a mechanochemical approach. The catalyst showed significantly enhanced performance in acidic conditions. The mechanism and performance optimization principles were revealed through operando X-ray absorption spectroscopy and theoretical calculations, providing new insights for designing active, stable, and cost-effective catalysts for the acidic oxygen evolution reaction.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
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)
Article
Multidisciplinary Sciences
Yin Qin et al.
Summary: This study demonstrates an effective strategy to enhance the activity and stability of RuO2 catalyst for acidic oxygen evolution reaction by electrochemical lithium intercalation.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Xiaojun Wang et al.
Summary: This study presents an electronic structure modulating strategy by dispersing RuO2 over defective TiO2 enriched with oxygen vacancies (RuO2/D-TiO2), which significantly enhances the acidic oxygen evolution reaction (OER) kinetics. The as-prepared RuO2/D-TiO2 catalyst exhibits good catalytic activity, low voltage, and long-term stability.
Article
Chemistry, Multidisciplinary
Bing Huang et al.
Summary: In this study, a Co-HMT metal-organic framework was used as the precursor, and a fast-quenching method was employed to synthesize a catalyst with RuO2 nanorods loaded on ATO. The optimized catalyst exhibited a small overpotential and stable performance, enabling it to reach a certain current density at a low voltage in practical applications.
Article
Chemistry, Physical
Xinjian Shi et al.
Summary: Electrolysis coupled with renewable energy is crucial for green hydrogen production and deep decarbonization. In this study, we designed a highly active and acid-stable catalyst involving iridium-tungsten trioxide (Ir:WO3/Ir), which showed excellent performance in terms of activity and stability. Our work provides an effective strategy to obtain low-cost, durable, and efficient OER catalysts for broader adoption of PEM electrolyzers.
ACS ENERGY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Min Feng et al.
Summary: Developing low-cost and efficient nonprecious metal electrocatalysts for oxygen evolution reactions in acidic medium to realize the application of proton exchange membrane water electrolyzers is a major challenge. This study demonstrates that bimetallic carbides (TiTaC2) fabricated through hydrothermal treatment and an annealing process, along with fluorine doping, can enhance the catalytic activity of transition metal carbides. The resulting TiTaFxC2 NP/rGO nanoparticles exhibit superior OER catalytic performance compared to Ir/C catalyst, with fast kinetics and high durability.
Article
Multidisciplinary Sciences
Luqi Wang et al.
Summary: Researchers propose a rapid complete reconfiguration strategy for enhancing catalyst activity by coating CoC2O4 heterostructures with MXene nanosheets. The rapid reconfiguration creates new catalytic species Co(OH)(2), which facilitates fast reaction kinetics.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Kun Du et al.
Summary: Designing catalytic materials with enhanced stability and activity is crucial for sustainable electrochemical energy technologies. The authors of this study overcome the stability and activity limits of RuO2 by constructing a RuO2/CoOx interface in neutral and alkaline environments.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Yunzhou Wen et al.
Summary: In this study, the authors enhance acidic oxygen evolution by introducing strong Bronsted acid sites into RuO2, improving the stability and activity of the catalyst. This strategy could serve as an important reference for the development of stable catalysts.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Wangyan Gou et al.
Summary: This study reports on the development of amorphous IrOx/CeO2 nanowires as highly active and acid-stable oxygen evolution reaction (OER) catalysts. The catalysts exhibit high mass activity and stability under acidic conditions, and the improved OER activity and stability are attributed to the regulation of oxygen intermediates, lowered activation barrier, and suppression of over-oxidation and dissolution of Ir through the intimate nanoscale structure of IrOx/CeO2.
Review
Energy & Fuels
Xiaomin Xu et al.
Summary: This article presents the application of high-entropy materials in water electrolysis, focusing on their role in catalyzing water-splitting reactions. The article summarizes various design strategies for high-entropy materials, including controlling size and shape, constructing porous structures, engineering defects, etc., to enhance catalytic performance. Additionally, it points out the challenges faced in the field and suggests future perspectives for development.
Article
Chemistry, Physical
Yuying Liu et al.
Summary: This research presents a method of enhancing the activity of acidic oxygen evolution reaction (OER) by substituting yttrium for iridium sites. By detailed structural characterizations, we synthesized Ca2Y0.2Ir0.8O4 catalyst and demonstrated its higher activity compared to IrO2. Analysis of electronic structures revealed the synergistic effects between high-valence iridium sites and increased lattice oxygen concentration induced by yttrium substitution. Operando experiments confirmed the dual active sites of iridium and yttrium in acidic OER.
ACS ENERGY LETTERS
(2022)
Article
Chemistry, Physical
Junying He et al.
Summary: Proton and electron co-doping was employed to construct an Ru-O-H bond within the RuO2 lattice, which increased the electrocatalytic activity and stabilized the lattice oxygen. The 75-HRuO2 catalyst demonstrated high activity and stability in the solid polymer electrolyzer.
Article
Electrochemistry
Wang Wang et al.
Summary: In this study, a newly proposed kinetic model was used to investigate the promotion mechanism of the oxygen evolution reaction (OER) for Co3O4 interfaced with nickel hydroxides (NiOxHy). The results revealed that depending on the electrode potential, the OER kinetics at the designed interface between Co3O4 and NiOxHy are boosted in different ways, leading to a lower onset potential and a low Tafel slope.
Article
Nanoscience & Nanotechnology
Shaoyun Hao et al.
Summary: This study presents a torsion-strained Ta0.1Tm0.1Ir0.8O2-delta nanocatalyst with abundant grain boundaries, which exhibits a low overpotential for oxygen evolution reaction. By tuning the adsorption energy of oxygen intermediates, this nanocatalyst shows enhanced catalytic activity. The proton exchange membrane electrolyser using this nanocatalyst can operate stably for 500 hours with a cost of US$1/kg of H-2, achieving a lower cost target set by the US Department of Energy.
NATURE NANOTECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Hui Su et al.
Summary: Uncovering the dynamics of active sites in working conditions is crucial to improve the activity and stability of oxygen evolution reaction electrocatalysts. In this study, dynamic-coupling oxygen on atomically dispersed iridium sites was identified during the oxygen evolution reaction, leading to enhanced activity and resistance to over-oxidation and dissolution of the active sites.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Jieqiong Shan et al.
Summary: This study proposes a method to integrate noble metal atoms into the lattice of transition metal oxides to create a new type of hybrid structure, showing that iridium single atoms can be effectively accommodated into cobalt spinel oxide. The resultant catalyst exhibits significantly higher electrocatalytic activity under acidic conditions, with improved corrosion resistance and oxidative potentials. This work eliminates the close-packing limitation of noble metals and offers promising opportunities for creating analogues with desired topologies for various catalytic applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Chao Lin et al.
Summary: The use of Ru/MnO2 electrocatalyst has shown high activity and outstanding stability for the oxygen evolution reaction, confirming a mechanism involving only *O and *OH intermediates, with excellent overall performance.
Article
Chemistry, Multidisciplinary
Yanrong Xue et al.
Summary: The sulfate-functionalized RuFeOx catalyst, with both sulfate anion and Fe cation doping, shows remarkable OER performance with low overpotential and enhanced stability. The sulfate dopants weaken the adsorption of *OO-H intermediate, while Fe dopants promote the deprotonation of water molecules for *OOH formation, contributing to the excellent OER activity and stability of S-RuFeOx.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Liming Deng et al.
Summary: Designing a well-defined metal-support interfacial bond is an effective strategy to optimize the intrinsic activity of noble metals, but it is also challenging. The developed quantum-sized metal nanoparticles anchored on nickel metal-organic framework nanohybrids demonstrate excellent hydrogen evolution reaction (HER) activity at all pH values, surpassing even commercial Pt/C and recent noble-metal catalysts. The interfacial-bond-induced electron redistribution plays a crucial role in enhancing the reaction kinetics and overall performance of the hybrids.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Lijie Zhang et al.
Summary: The study developed sodium-decorated amorphous/crystalline RuO2 with rich oxygen vacancies as a pH-universal OER electrocatalyst, showing remarkable acid resistance and high catalytic stability. The introduction of Na dopant and oxygen vacancy in RuO2 was found to lower the energy barrier for OER by weakening the adsorption strength of the OER intermediates.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(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.
Review
Chemistry, Multidisciplinary
Xiaomin Xu et al.
Summary: Proton exchange membrane (PEM) water electrolysis is a promising technology for green hydrogen production, but the slow reaction kinetics of the anodic oxygen evolution reaction (OER) in an acidic environment hinders its practical viability. Noble metal-based catalysts like iridium and ruthenium are effective for the acidic OER, but their low abundance and high cost pose challenges for their use in PEM electrolyzers. Metal-organic frameworks (MOFs) have emerged as a platform for designing efficient and cost-effective acidic OER catalysts, with promising future research directions towards better catalysts for operation in acidic environments and PEM devices.
Article
Chemistry, Multidisciplinary
Denis A. Kuznetsov et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Article
Chemistry, Physical
Reshma R. Rao et al.
Article
Chemistry, Multidisciplinary
Xiao Liang et al.
ADVANCED MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Zhi Liang Zhao et al.
ENERGY & ENVIRONMENTAL SCIENCE
(2020)
Article
Chemistry, Physical
Sourav Laha et al.
ADVANCED ENERGY MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
Jiayi Chen et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2019)
Article
Chemistry, Physical
Ruixiang Ge et al.
ADVANCED ENERGY MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
Hongyu Guo et al.
Article
Multidisciplinary Sciences
Zewen Zhuang et al.
NATURE COMMUNICATIONS
(2019)
Article
Chemistry, Multidisciplinary
Jianwei Su et al.
ADVANCED MATERIALS
(2018)
Article
Multidisciplinary Sciences
Linsey C. Seitz et al.
