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Article
Chemistry, Physical
Qingping Yu et al.
Summary: A boron doping strategy is proposed to activate the strong metal-support interaction (SMSI) of ultra-small Rh nanoparticles encapsulated by N-doped carbon matrix (BRh@NC). Density functional theory (DFT) reveals that boron doping enhances the electronic structure and water adsorption energy, resulting in boosted hydrogen evolution reaction (HER) activity. The prepared B-Rh@NC nanospheres exhibit Pt-like activity for HER in various electrolytes with low overpotentials and excellent stability. This work paves the way for constructing remarkable pH-universal electrocatalysts.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Kai Zhang et al.
Summary: In this study, we developed a hydrothermal sulfurization-acid assisted etching strategy to fabricate Mo doped NiS/Ni3S2 polymorph heterostructure with rich sulfur vacancies (Mo-NiS/Ni3S2-rich Sv). It was discovered that the S centers on the Ni3S2 side of the nickel sulfide polymorphs served as the H2-evolving sites, while the Ni sites on the Mo-NiS side facilitated the cleavage of the HO-H bond. The presence of rich Sv expedited the evolution of H* to molecular H2, leading to enhanced HER kinetics. The optimized Mo-NiS/Ni3S2-rich Sv electrocatalyst exhibited excellent HER activity and durability in alkaline solution. Understanding the synergy of polymorph heterostructure and element defect is crucial for the rational design of high-performance HER electrocatalysts.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Multidisciplinary
Luqi Wang et al.
Summary: This study reports a facile in situ growth strategy for the synthesis of tightly connected 2D/2D heterostructures by coupling MXene with CoBDC nanosheets. The optimized CoBDC/MXene exhibits superior hydrogen evolution reaction activity.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yuhang Liu et al.
Summary: Designing and synthesizing efficient and stable electrocatalysts is important for the hydrogen economy. Interfacial engineering is an effective strategy to optimize the kinetics of the hydrogen evolution reaction (HER) by inducing electron transfer. In this study, ultrafine RhP2/Rh nanoparticles embedded in N,P co-doped graphene were synthesized, and they exhibit outstanding HER performances under all pH conditions. The interfacial electron transfer from metallic Rh to semiconductive RhP2 enhances the HER kinetics, and activates the dual-site synergistic effect of Rh and P in neutral and alkaline environments, promoting faster HER kinetics.
ADVANCED MATERIALS
(2023)
Article
Engineering, Environmental
Huimin Zhang et al.
Summary: A three-phase heterojunction of MoPt2-MoNi4/Mo2C was fabricated by pyrolyzing hydrothermally resultant Mo-Ni precursor with subsequent galvanic Pt replacement process. It exhibits remarkable and stable hydrogen evolution reaction (HER) performance in alkaline, neutral, and acidic media. Density functional theory calculations reveal that Pt atoms located in the three-phase boundary have optimal electronic structure modulated by MoNi4/Mo2C and act as highly-active sites for HER.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Xiaodong Chen et al.
Summary: In this study, a one-dimensional electrocatalyst with excellent hydrogen evolution reaction (HER) activity in a wide pH range was designed through the modulation of electronic structure and geometric configuration. The catalyst, composed of molybdenum trioxide doped molybdenum nickel alloy supported by copper nanowires (MoO3-MoNi4@Cu NWs), showed enhanced H2O adsorption and dissociation due to the up shift of the d-band center in MoNi4 facilitated by electron transfer from Cu NWs. Additionally, the introduction of amorphous MoO3 created a unique geometric configuration on MoNi4 for accelerated H* transfer via hydrogen-bond and hydrogen spillover. This work provides a synergistic approach for constructing HER pathways and promotes further investigations in versatile electrocatalysis involving H2O or H*.
Article
Chemistry, Multidisciplinary
Viet-Hung Do et al.
Summary: Engineering sub-nanometer Pt clusters on 2D MoN substrate allows for the development of efficient electrocatalysts for hydrogen evolution. A solid phase deposition method is utilized to confine atomically thin Pt clusters on 2D MoN, resulting in a pH-universal catalyst with excellent performance and stability. Strong metal-support interaction and novel nanostructure are responsible for the enhanced catalytic activity and structural stability.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yifan Yang et al.
Summary: Hydrazine oxidation coupled with hydrogen evolution is an effective strategy for low-energy water splitting for hydrogen production. This study focuses on the design of a hierarchical Ohmic contact interface as a bridge between NiMo and Ni2P heterojunction, aiming to achieve high current density applications and low voltage-driven hydrazine splitting. The results show that the proposed design allows for significant reduction in cell voltage and high electrocatalytic stability, paving the way for hydrogen production with low energy consumption.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Panyong Kuang et al.
Summary: By providing dual active sites for H2O dissociation and H+ reduction, ordered intermetallic alloys exhibit extraordinary performance for pH-universal hydrogen evolution reaction (HER). In this study, activated N-doped mesoporous carbon spheres supported intermetallic Pt3Fe alloys (Pt3Fe/NMCS-A) are reported as highly-efficient electrocatalysts for pH-universal HER. The synthetic strategy is further extended to the synthesis of Pt3Co and Pt3Ni alloys with excellent HER activity in pH-universal electrolytes, showing great potential for practical applications.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Kaiwen Wang et al.
Summary: A novel in-plane heterostructure (TMSs@1T-MoS2) with transition metal sulfide clusters embedded in 1T-MoS2 nanosheets was designed, which induced lattice distortion and electron transfer at the heterointerfaces, synergistically regulating the electronic structure to improve hydrogen adsorption. The TMSs@1T-MoS2 exhibited significantly enhanced hydrogen evolution reaction (HER) activity, with NiS2@1T-MoS2 delivering 10 mA cm-2 at low overpotentials of 73 mV and 71 mV in 0.5 M H2SO4 and 1.0 M KOH, respectively.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Multidisciplinary
Huachuan Sun et al.
Summary: Exploring efficient HER electrocatalysts for water electrolysis in the full potential of hydrogen range is challenging. The authors propose a simple synthesis method to produce a hybrid electrocatalyst (Pt-Ns/NiTe-Ns) by decorating small Pt nanosheets on large NiTe nanosheets. The Pt-Ns/NiTe-Ns catalyst exhibits high catalytic activity and stability in alkaline, neutral, and acidic conditions due to the synergistic effect between Pt and activated Ni at the interface.
Article
Chemistry, Applied
Wen Kang Zhao et al.
Summary: The design and synthesis of non-precious metal dual-functional electrocatalysts through the modulation of electronic structure are important for the development of renewable hydrogen energy. Here, MnS2/MnO2-CC heterostructure dual-functional catalysts with ultrathin nanosheets were prepared for efficient acidic hydrogen evolution reaction (HER) and degradation of organic wastewater.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Physical
Qixing Zhou et al.
Summary: This study demonstrates the significant improvement in electrocatalytic performance of catalysts through the utilization of heterointerface effect. The well-designed CoP/CoO PNTs exhibit Pt-like activity and excellent stability as hydrogen evolution reaction (HER) electrocatalysts. The construction of CoP/CoO heterojunctions optimizes the Gibbs free energies and enhances the intrinsic activity of HER. The study provides insights into the fundamental mechanisms of heterojunction-induced electronic regulation and guides the rational design of advanced electrocatalysts in the future.
Review
Chemistry, Multidisciplinary
Eunsoo Lee et al.
Summary: The focus of current research is on developing highly efficient noble-metal-free catalysts for the hydrogen evolution reaction (HER) to improve the efficiency and economic viability of the water-splitting process. By studying the structure-activity relationships of metal borides (MBs), highly efficient and nonprecious HER MBs electrocatalysts have been designed, with boron and its substructures playing a crucial role in achieving extraordinary HER performances.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Huixiang Liu et al.
Summary: The study developed and fabricated a novel monolithic 3D hollow foam electrode with high catalytic performance and stability for large current density water electrolysis. The electrode exhibits high electrochemical surface area, high conductivity, and low gas transfer resistance, enabling stable operation at high current density and overpotentials.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Shijie Shen et al.
Summary: This study achieves deep optimization of catalytic activity by constructing a crystalline-amorphous CoSe2/CoP heterojunction, optimizing the valence state and H adsorption of Co, and lowering the kinetic barrier of the hydrogen evolution reaction. The heterojunction shows competitive properties in acidic, neutral, and basic media.
ADVANCED MATERIALS
(2022)
Article
Engineering, Environmental
Zhongsheng Hua et al.
Summary: This study proposes a facile and effective method to fabricate self-standing Al3Ni2/Ni electrode, which exhibits high activity for hydrogen production through water splitting. The electrode consists of uniform Al3Ni2 catalyst directly grown on a nickel substrate, with a unique three-dimensional cauliflower-like morphology. By providing numerous exposed active sites, enhanced charge transfer and mass transport, and fast gas releasing, the electrode can synergistically improve the electrocatalytic performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Beibei Pang et al.
Summary: The interaction between different atomic species of bimetallic nanoparticles is crucial for designing efficient catalysts. Utilizing a laser-assisted strategy, PtRu alloys with isolated Pt sites anchored on the Ru host were studied under electrocatalytic conditions, showing enhanced activity due to increased alloying degree. The surface-restructured PtRu alloy exhibited outstanding hydrogen evolution reaction (HER) activity and stability under various pH values, demonstrating the feasibility of surface engineering for designing advanced bimetallic catalysts.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Huai Qin Fu et al.
Summary: This study presents a new approach for water-alkaline electrolysis hydrogen production, which enables the operation at ampere-level current densities under low overpotentials with the use of hydrogen spillover-bridged water dissociation/hydrogen formation processes and synergistically hybridized catalysts. Mechanistic insights critical to enable ampere-level current density operation are revealed through experimental and theoretical studies.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Yaoda Liu et al.
Summary: This study presents a method to enhance the efficiency of water electrolysis by using a MoS2/NiPS3 heterostructure catalyst. The driving force of hydrogen spillover (HSo) is clarified as the internal polarization field (IPF), which can also facilitate hydroxyl diffusion in the deprotonated oxygen evolution reaction (OER). The MoS2/NiPS3 heterostructure exhibits high HER and OER activity and can achieve stable overall water splitting.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Naeimeh Sadat Peighambardoust et al.
Summary: The production of high-quality green hydrogen gas has been widely studied in recent years. In this study, metal-substituted MoB2 electrocatalysts were synthesized and examined for water electrolysis, with Mo0.9Ni0.1B2 showing promising electrocatalytic performance.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Review
Chemistry, Physical
Liwei Xiong et al.
Summary: This article describes the effects and mechanism of the electronic structure on the electrocatalytic activity and discusses viable strategies to modulate the electronic configuration of electrocatalysts.
Article
Nanoscience & Nanotechnology
Xiyan Liu et al.
Summary: The alpha-MoB2 nanosheets synthesized by a simple method exhibit excellent hydrogen evolution performance and stability in both alkaline and acidic electrolytes.
ACS APPLIED NANO MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Jian Chen et al.
Summary: In this study, a highly active and durable multicomponent catalyst for the hydrogen evolution reaction (HER) was developed. The catalyst, consisting of cobalt nanoparticles confined inside bamboo-like carbon nanotubes (CNTs) and ultralow ruthenium loading on the exterior walls, exhibited exceptional HER activity. The atomic-scale structural investigations and theoretical calculations revealed that the confined inner cobalt and loaded outer ruthenium induced charge redistribution and synergistic electron coupling, optimizing the adsorption energy of H intermediates and facilitating electron/mass transfer. The results demonstrated that the Co@CNTs | Ru catalyst achieved top-level catalytic activity among all reported HER catalysts. This work provides new insights for the rational design of carbon-supported metal catalysts for practical applications.
NANO-MICRO LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Xiyan Liu et al.
Summary: In this study, alpha-MoB2 nanosheets were successfully synthesized through a simple molten salt method, showing improved HER performance in alkaline electrolytes and comparable performance in acidic electrolytes. The nanosheet structure allows more active planes to be exposed, contributing to the outstanding stability of alpha-MoB2 nanosheets in both acidic and alkaline media.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Wei Du et al.
Summary: It has been found that the Mo element in Ni4Mo alloy exhibits instability in alkaline water electrolyzer, enhancing the hydrogen evolution activity of metal Ni. Theoretical calculations and experimental results have shown that adding MoO42- to the electrolyte can repair the durability of the alloy and enhance the activity of cathodic materials.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Inorganic & Nuclear
Xiyan Liu et al.
Summary: This study reports the first synthesis of crystalline beta-MoB2 nanosheets with a large surface area, showing excellent HER activity in acidic medium. The high activity of beta-MoB2 nanosheets is attributed to the large surface area allowing more active sites to be exposed.
INORGANIC CHEMISTRY
(2021)
Article
Electrochemistry
Xianglin Liu et al.
Summary: In this study, MoB2 nanoparticles were successfully synthesized through electrochemical reduction in molten NaCl-KCl, using low-cost MoS2 feedstock at a temperature of 700 degrees Celsius. The green synthesis process involved electrochemical desulfurization and boronization steps, with control over the phase composition and morphology of the electrolytic products achieved.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Engineering, Environmental
Huawei Huang et al.
Summary: This study presents a facile strategy to synthesize bimetallic borides Ni3B/MoB nanosheets with abundant grain boundaries and investigates the impact of grain boundaries on electrocatalytic performance for the hydrogen evolution reaction (HER). The results show that the grain boundaries in the nanostructure adjusted the electronic states and optimized Delta G(H*), leading to enhanced catalytic activities for HER.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Jian Huang et al.
Summary: The properties of high entropy alloys depend on their phase structures and compositions. A green approach using molten salt electrolysis was developed to efficiently prepare homogeneous powdery phase FCC Fe0.5CoNiCuZnx HEAs containing highly volatile elements such as Zn. The electrocatalytic activity of the HEAs towards oxygen evolution reactions was found to be optimized by the addition of Zn, with the HEA(Zn-0.8) exhibiting the best OER activity and stability.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Yunfei Chen et al.
Summary: A novel strategy of preparing dual-phase MoC-Mo2C nanosheets by electro-reduction of CO2 in CaCl2-CaO molten salts on the Mo cathode has been proposed, with composition adjustable by cell voltage and temperature. The dual-phase MoC-Mo2C nanosheets prepared at 850 degrees C and 2.5 V exhibit the best activity in the HER due to a balance of hydrogen adsorption-desorption. This innovative approach offers a sustainable method for highly efficient HER electrocatalysts and CO2 recycling.
Review
Chemistry, Multidisciplinary
Dong Tian et al.
Summary: Transition metal carbides and nitrides, as interesting non-precious materials that can replace or reduce the loading of precious metals for catalyzing important electrochemical reactions, have attracted high interest from scientific communities. This review summarizes density functional theory studies, describes reaction pathways, identifies activity and selectivity descriptors, and provides a future outlook for designing carbide and nitride catalysts.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Hyounmyung Park et al.
ADVANCED MATERIALS
(2020)
Review
Chemistry, Multidisciplinary
Yinlong Zhu et al.
ENERGY & ENVIRONMENTAL SCIENCE
(2020)
Review
Chemistry, Multidisciplinary
Qingsheng Gao et al.
ADVANCED MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
Hyounmyung Park et al.
Article
Multidisciplinary Sciences
Yan Li et al.
NATURE COMMUNICATIONS
(2019)
Article
Chemistry, Physical
Qiuju Li et al.
ADVANCED ENERGY MATERIALS
(2019)
Article
Energy & Fuels
Cao-Thang Dinh et al.
Review
Chemistry, Multidisciplinary
Yanna Guo et al.
ADVANCED MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
Feifan Guo et al.
CHEMICAL COMMUNICATIONS
(2019)
Review
Chemistry, Multidisciplinary
Sai Chen et al.
ENERGY & ENVIRONMENTAL SCIENCE
(2019)
Article
Chemistry, Multidisciplinary
Sang A. Lee et al.
ENERGY & ENVIRONMENTAL SCIENCE
(2017)
Article
Chemistry, Multidisciplinary
Yanli Chen et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2017)
Article
Chemistry, Multidisciplinary
Hyounmyung Park et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2017)
Review
Multidisciplinary Sciences
Zhi Wei Seh et al.
Review
Chemistry, Multidisciplinary
Georgiy Akopov et al.
ADVANCED MATERIALS
(2017)
Article
Chemistry, Multidisciplinary
Hyounmyung Park et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2017)
Review
Chemistry, Multidisciplinary
Yanmei Shi et al.
CHEMICAL SOCIETY REVIEWS
(2016)
Article
Chemistry, Inorganic & Nuclear
Li-Ping Ding et al.
INORGANIC CHEMISTRY
(2016)
Article
Chemistry, Physical
Justus Masa et al.
ADVANCED ENERGY MATERIALS
(2016)
Article
Chemistry, Multidisciplinary
Ming Gong et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2015)
Review
Chemistry, Multidisciplinary
Xiaoxin Zou et al.
CHEMICAL SOCIETY REVIEWS
(2015)
Review
Chemistry, Physical
Min Zeng et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2015)
Article
Chemistry, Physical
Haiping Gao et al.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2014)
Review
Chemistry, Multidisciplinary
Sophie Carenco et al.
