Article
Nanoscience & Nanotechnology
Yawen Hao, Gaohui Du, Yi Fan, Lina Jia, Di Han, Wenqi Zhao, Qingmei Su, Shukai Ding, Bingshe Xu
Summary: The facile preparation of Mo-P dual-doped Co/oxygen-deficient Co3O4 core-shell nanorods as highly efficient electrocatalysts for water splitting has shown outstanding durability and performance in both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) due to the synergistic effect of oxygen vacancies, Mo/P doping, and core-shell heterostructures.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Qianqian Fu, Hui Wang, Kunlun Nie, Xuyun Wang, Jianwei Ren, Rongfang Wang
Summary: In this study, P, S co-doped NiCoPxSy nanowire array catalysts were synthesized on a nickel foam substrate using a stepped preparation strategy. The prepared catalysts exhibited excellent electrocatalytic performance, enabling simultaneous hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) on both the anode and cathode. This research provides an effective method for designing innovative catalysts and producing clean energy.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Engineering, Environmental
Yue Wang, Pengfei Yang, Yuecheng Gong, Dongzheng Liu, Silu Liu, Weiping Xiao, Zhenyu Xiao, Zhenjiang Li, Zexing Wu, Lei Wang
Summary: The development of highly efficient and low-cost electrocatalysts for hydrogen/oxygen evolution reactions is crucial for their large-scale practical applications. The use of corrosive engineering and low-temperature phosphorization approach enables the preparation of Mo-doped NiFeP on nickel-iron foam with amorphous morphology, porous structure, and superhydrophilic surface, providing abundant active sites and facilitating charge transfer. The prepared Mo-NiFeP/NIF exhibits excellent electrocatalytic performance for OER and HER with low overpotentials and remarkable stability under large current density.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Parvin Asen, Ali Esfandiar, Azam Iraji Zad
Summary: The study successfully synthesized Ni-Co/Ni-Co-O-P electrode material through a simple electrodeposition method, and applied it to electrocatalytic water splitting and APAP sensing. The results showed that the material exhibited excellent electrocatalytic activity and stability in alkaline media, and showed good sensing performance towards APAP.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Chemistry, Inorganic & Nuclear
Lan Sun, Qiaomei Luo, Zhengfei Dai, Fei Ma
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
Ruizhe Gu, Tao Zhou, Zihao Wang, Zheng Chen, Junwen Tao, Zhewei Fan, Lingyun Guo, Yongsheng Liu
Summary: Designing high-efficiency catalysts for overall water splitting is crucial for reducing the cost of hydrogen fuel as a clean and renewable energy source. This study successfully synthesized Mo-, P-codoped NiFeSe catalysts on nickel foam, which exhibited efficient HER/OER performances with low overpotential and high stability. The catalysts required only 1.53 V to deliver a current density of 10 mA cm-2 in overall water splitting and maintained outstanding durability for 100 h.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Haibin Ma, Zhiwen Chen, Zhili Wang, Chandra Veer Singh, Qing Jiang
Summary: This study successfully developed a low-cost, high-efficiency catalyst Co/CoMoN/NF for both HER and OER reactions in alkaline electrolyte. The Co/CoMoN/NF heterostructures exhibited excellent performance in both HER and OER, and demonstrated superior long-term stability.
Article
Chemistry, Multidisciplinary
Xinwei Wen, Xiaoqiang Yang, Shuli Li, Qing Qu, Lei Li
Summary: Here, we propose a universal strategy for synthesizing transition metal oxide/sulfide heterojunctions as highly efficient catalysts. The edge-rich structure, abundant oxygen defects, and variable valence states of the metals enhance the catalytic performance in water electrolysis, providing an effective and economical approach for large scale catalyst synthesis without the need for noble metals.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Shi Chen, Wenjing Liang, Xinyi Wang, Yueqi Zhao, Shuo Wang, Zheng Li, Shengmei Wang, Li Hou, Yang Jiang, Faming Gao
Summary: In this paper, carbon skeleton supported CoNi bimetallic sulfides catalysts modified with phosphorus doping were successfully synthesized. The catalyst exhibits low overpotential in hydrogen evolution reaction and oxygen evolution reaction, and shows remarkable performance and good stability in overall water splitting.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Inorganic & Nuclear
Ning Chai, Yuxuan Kong, Tian Liu, Shuanglu Ying, Qiao Jiang, Fei-Yan Yi
Summary: Developing inexpensive and efficient non-precious metal electrocatalysts for water splitting reactions is crucial. In this study, a series of 3d-4f (FeMnCe)-trimetallic MOF-74 with different ratios of metal centers were designed. FeMn6Ce0.5-MOF-74/NF exhibited excellent electrocatalytic properties for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) in an alkaline solution. Moreover, the overall water splitting system using FeMn6Ce0.5-MOF-74/NF as the anode and cathode only required a voltage of 1.65 V to achieve a current density of 10 mA cm(-2).
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Yifan Zhao, Ji Chen, Shuwen Zhao, Weijie Zhou, Ruijie Dai, Xuan Zhao, Zhengang Chen, Tao Sun, Hua Zhang, Anran Chen
Summary: A Mo-doped NiCoP nanowire catalyst was synthesized on a metallic 3D Ni foam for hydrogen evolution and oxygen evolution reactions with low overpotentials and excellent catalytic performances. This catalyst showed stable performance for at least 50 hours in overall water splitting with a negligible performance drop.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Hyogyun Roh, Hyeonjung Jung, Hyuntae Choi, Jeong Woo Han, Taiho Park, Sangkuk Kim, Kijung Yong
Summary: Metal phosphide nanowires grown directly on porous electrodes show enhanced catalytic activity for water splitting. Fe-doped Ni2P nanowires exhibit the best oxygen evolution reaction performance, while Mo-doped Ni2P nanowires show excellent hydrogen evolution reaction activity. DFT calculations support the experimental results, and combining NiMoP/NiFeP for overall water splitting requires a low potential of 1.57 V to generate 10 mA cm-2 current density. The assembled PV-EC system achieves a high solar-to-hydrogen conversion efficiency of 14%.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Ramin Badrnezhad, Farnaz Nasri, Hamed Pourfarzad, Saman Khadem Jafari
Summary: This study successfully synthesized Ni-Mo-Fe as a bifunctional electrocatalyst for efficient hydrogen and oxygen evolution reactions in alkaline media. The fabricated catalyst exhibited excellent performance and stability, making it a candidate for industrial applications in alkaline electrolyzers.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Hang Shi, Tian-Yi Dai, Wu-Bin Wan, Zi Wen, Xing-You Lang, Qing Jiang
Summary: The study introduces efficient electrocatalysts Mo-/Co-N-C/Cu for alkaline hydrogen evolution reaction, featuring unique architecture and outstanding performance, which is crucial for large-scale hydrogen production.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Nan Li, Yi Guan, Yongliang Li, Hongwei Mi, Libo Deng, Lingna Sun, Qianling Zhang, Chuanxin He, Xiangzhong Ren
Summary: A novel post-modification synthesis strategy was proposed to prepare an electrocatalyst Co-Mo-P@NCNS-600 with excellent performance and stability, showing promising potential for efficient electrolysis in water-splitting devices. The construction of Co-Mo-P active site effectively modulates intrinsic electronic properties and enhances electrochemical performance, as supported by Density functional theory (DFT) results.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Fangqing Wang, Rui Zhang, Yangyang Zhang, Ying Li, Jun Zhang, Wenhao Yuan, Hui Liu, Fei Wang, Huolin L. Xin
Summary: This research reports a carbon-supported single-atom nickel catalyst with boron and nitrogen dual coordination, which shows excellent oxygen reduction reaction (ORR) performance in fuel cells and metal-air cells. Density functional theory calculations indicate that the catalyst has active sites more favorable for the adsorption of ORR intermediates, reducing the thermodynamic barrier and accelerating the reaction kinetics, thereby enhancing the catalytic activity.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Chunyang Wang, Ruoqian Lin, Yubin He, Peichao Zou, Kim Kisslinger, Qi He, Ju Li, Huolin L. Xin
Summary: Designing stable Li metal and supporting solid structures (SSS) is crucial for rechargeable Li-metal batteries. Through in situ observations of a solid-state Li-metal battery, two distinct modes of Li stripping controlled by the SSS thickness to Li deposit's radius ratio are discovered. A quantitative criterion is established to understand the damage tolerance of SSS on the Li-metal stripping pathways. This work highlights the importance of designing delicate Li-metal supporting structures for high-performance solid-state Li-metal batteries.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xianyun Peng, Rui Zhang, Yuying Mi, Hsiao-Tsu Wang, Yu-Cheng Huang, Lili Han, Ashley R. Head, Chih-Wen Pao, Xijun Liu, Chung-Li Dong, Qian Liu, Shusheng Zhang, Way-Faung Pong, Jun Luo, Huolin L. Xin
Summary: In this study, disordered Au nanoclusters anchored on two-dimensional ultrathin Ti3C2Tx MXene nanosheets are explored as highly active and selective electrocatalysts for efficient N-2-to-NH3 conversion. A combination of in situ near-ambient pressure X-ray photoelectron spectroscopy and operando X-ray absorption fine structure spectroscopy is employed to unveil the uniqueness of this catalyst for N2RR. The disordered structure is found to serve as the active site for N-2 chemisorption and activation during the N2RR process.
Article
Electrochemistry
Yaqi Jing, Yikun Shao, Huolin L. L. Xin
Summary: The cycling performance of CoB coated NMC-811 cathode was evaluated in EC-EMC-based electrolytes with and without vinylene carbonate (VC) additive at different temperatures. The results showed that CoB coating can effectively protect the NMC-811 cathode at room temperature, but its protective capabilities are slightly reduced in the presence of VC. Additionally, high temperature and air shelving have negative impacts on the CoB coated material.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Chunyang Wang, Xuelong Wang, Rui Zhang, Tianjiao Lei, Kim Kisslinger, Huolin L. Xin
Summary: In this study, the intralayer transition motifs at complex phase boundaries in high-Ni cathodes are resolved using deep-learning-aided super-resolution electron microscopy. The structural transition motifs revealed provide further understanding of shear-induced phase transformations and phase boundaries in high-Ni layered cathodes.
Article
Nanoscience & Nanotechnology
Xueli Zheng, Xin Gao, Rafael A. Vila, Yue Jiang, Jingyang Wang, Rong Xu, Rui Zhang, Xin Xiao, Pu Zhang, Louisa C. Greenburg, Yufei Yang, Huolin L. Xin, Xiaolin Zheng, Yi Cui
Summary: Researchers have developed a hydrogen-substituted graphdiyne-assisted ultrafast sparking synthesis (GAUSS) platform for the preparation of metastable nanomaterials. By controlling the composition and chemistry of the hydrogen-substituted graphdiyne aerogel framework, the reaction temperature can be tuned from 1,640 K to 3,286 K. The versatility of the GAUSS platform has been demonstrated through the successful synthesis of single atoms, high-entropy alloys, and high-entropy oxides.
NATURE NANOTECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Fangqing Wang, Ying Li, Rui Zhang, Hui Liu, Yangyang Zhang, Xuerong Zheng, Jun Zhang, Cong Chen, Shijian Zheng, Huolin L. Xin
Summary: A Si-doped Ni-NC catalyst (Ni-SiNC) with high activity and excellent stability was reported in this work. The single-atom Ni site in Ni-SiNC is coordinated with one Si atom and three N atoms, forming a Ni-Si1N3 moiety. The Ni-SiNC catalyst exhibits a half-wave potential of 0.866 V versus RHE and only a 10 mV negative shift in E-1/2 after 35,000 cycles, demonstrating its remarkable durability and stability.
Article
Chemistry, Multidisciplinary
Wenjun He, Rui Zhang, Da Cao, Ying Li, Jun Zhang, Qiuyan Hao, Hui Liu, Jianling Zhao, Huolin L. Xin
Summary: In this study, a self-supported microporous Ni(OH)x/Ni3S2 heterostructure electrocatalyst was designed and fabricated, exhibiting exceptional performance in alkaline hydrogen evolution reaction (HER) at large current density. The electrocatalyst possesses super-hydrophilic property and long-term durability.
Article
Chemistry, Physical
Wei Liu, Haoqiang Li, Pengfei Ou, Jing Mao, Lili Han, Jun Song, Jun Luo, Huolin L. Xin
Summary: Chinese researchers reported a non-precious Cu-Sn diatomic sites catalyst anchored on nitrogen-doped porous carbon (CuSn/NPC) for efficient CO2 reduction reaction (CO2RR) to CO. The catalyst showed outstanding selectivity with CO Faradaic efficiency up to 99.1%, much higher than that of individual Cu and Sn single-atom catalysts. The high stability and selectivity of CuSn/NPC were confirmed through consecutive 24-hour electrolysis. Theoretical calculations revealed the activation of CO2 and weakened C-O bonds upon chemisorption on the CuSn/NPC catalyst.
Article
Chemistry, Multidisciplinary
Wenjun He, Rui Zhang, Hui Liu, Qiuyan Hao, Ying Li, Xuerong Zheng, Caichi Liu, Jun Zhang, Huolin L. Xin
Summary: A novel NiCo LDH electrocatalyst modified with single-atom silver on carbon cloth (Ag-SA-NiCo LDH/CC) is reported to exhibit exceptional OER activity and stability in 1.0 m KOH. The Ag-SA-NiCo LDH/CC catalyst shows a low overpotential of 192 mV to reach a current density of 10 mA cm(-2), significantly improving the OER activity of NiCo LDH/CC (410 mV@10 mA cm(-2)). Moreover, Ag-SA-NiCo LDH/CC can maintain its high activity for up to 500 h at a large current density of 100 mA cm(-2), exceeding most single-atom OER catalysts.
Article
Chemistry, Physical
Peichao Zou, Chunyang Wang, Jiayi Qin, Rui Zhang, Huolin L. Xin
Summary: A reactive wetting strategy is used to achieve conformal and highly reversible Li0 plating/stripping, which significantly improves the reversibility of Li0 batteries.
ENERGY STORAGE MATERIALS
(2023)
Article
Electrochemistry
Lei Wang, Yubin He, Huolin L. Xin
Summary: Solid polymer electrolytes (SPEs) have potential advantages over liquid electrolytes, but suffer from low room-temperature ionic conductivity. A recent study reports a poly(ethyl acrylate) based SPE with added succinonitrile (SN) solid plasticizer, lithium salt, and fluoroethylene carbonate additive, which achieves high room-temperature ionic conductivity. The addition of SN leads to decoupling of Li-ion from the polymer backbone, enabling Li-ion migration primarily through SN.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Shaobo Ma, Peichao Zou, Huolin L. Xin
Summary: This study successfully stabilizes the structure of P2-type layered sodium oxide Na0.667Mn0.667Ni0.167Co0.167O2 through a high-entropy doping strategy and proposes a novel HE-NMNC composite. The HE-NMNC demonstrates outstanding rate capability and cycling stability, providing new insights for the development of advanced cathode materials.
MATERIALS TODAY ENERGY
(2023)
Article
Materials Science, Multidisciplinary
Chunyang Wang, Xuelong Wang, Peichao Zou, Rui Zhang, Shefang Wang, Bohang Song, Ke-Bin Low, Huolin L. Xin
Summary: Understanding the chemomechanical degradation of layered oxide cathodes is crucial for the development of next-generation lithium-ion battery cathodes. Current understanding of their mechanical failure is limited to cracking, while our study reveals a stress-driven phase degradation mechanism caused by severe lattice bending and interlayer shear. This stress-driven phase transformation is a typical degradation modality widely existing in the material. Our work provides new insights into the mechanical deformation-induced phase transformation in layered oxide cathodes through deep-learning-aided super-resolution imaging and density functional theory calculations.
Article
Chemistry, Multidisciplinary
Peichao Zou, Chunyang Wang, Yubin He, Huolin L. Xin
Summary: This study presents a universal solid electrolyte design that allows for a wide range of ceramic LICs to be used in solid-state lithium batteries. The design eliminates the need for electronic insulation or chemical stability in ceramic LICs.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)