Article
Chemistry, Physical
Lunhong Ai, Yang Luo, Weijie Huang, Yao Tian, Jing Jiang
Summary: In this work, a rational design of multivariate metal-organic framework(MOF)-based electrocatalysts for the oxygen evolution reaction (OER) is reported. The catalytically inactive Ce-BTC is found to greatly enhance the performance of other electrocatalysts, and the resulting Co0.9Ce0.1-BTC exhibits outstanding OER performances comparable to commercial IrO2 and other previously reported MOF-based OER electrocatalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Qiuhong Sun, Jie Liu, Xiangli Ji, Dandan Chen, Yuanyuan Guo, Lujiao Mao, Jinjie Qian
Summary: This study fabricated nitrogen-doped carbon spheres with hollow structures and Co2P doping through the use of self-sacrificing templates, and found that these electrocatalysts exhibited excellent oxygen evolution reaction performance. These findings highlight the significance of hollow structures and Co2P-doping in the design of active non-noble metal electrocatalysts for future applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Hua Li, Zhenyao Du, Fei He, Shuiqiang Chen, Haihua Yang, Kewen Tang
Summary: The synthesis of self-supported CoNi-based metal-organic framework (MOF) nanostrips on Ni foam using CoCH nanoneedles as a template shows promising electrocatalytic activity for oxygen evolution reaction (OER). The CoCH nanoneedles modulate the morphology of CoNi-MOF, resulting in higher catalytically active surface area and faster mass transport and charge transfer, leading to enhanced OER performance. The developed approach holds potential for constructing more efficient catalysts for energy applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
M. Adil, Abdul Ghani Olabi, Mohammad Ali Abdelkareem, Hussain Alawadhi, Ahmed Bahaa, Khaled ElSaid, C. Rodriguez
Summary: By combining metal-organic frameworks derived 3D nanospheres and 2D MXene, MXene cobalt sulfide (MXene-CoS) was successfully fabricated. The electrode showed enhanced electroactivity and a wide potential window, resulting in ultrahigh specific capacity and excellent cyclic stability. This strategy opens up new possibilities for high-performance supercapacitors.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Inorganic & Nuclear
Chenchen Qiang, Min Liu, Liang Zhang, Zheng Chen, Zhen Fang
Summary: This study successfully synthesized a new self-supporting electrode with high OER activity and stability. Characterization results indicate that coordinatively unsaturated metal sites are the active sites in OER.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Manoranjan Ojha, Billy Wu, Melepurath Deepa
Summary: The research investigates the impact of different electrolytes on the performance of a supercapacitor, with findings indicating that the aqueous H+-ion-based CSA electrolyte outperforms other electrolytes, displaying higher ionic conductivity and transport number for improved energy storage performance.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Jing Liang, Xutao Gao, Biao Guo, Yu Ding, Jiawei Yan, Zhengxiao Guo, Edmund C. M. Tse, Jinxuan Liu
Summary: The study reports the synthesis of two-dimensional metal-organic frameworks on nickel foam, which exhibit superior oxygen evolution reaction performance under alkaline conditions due to the ferrocene units acting as efficient electron transfer intermediates.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Yan Han, Jian Cui, Yue Yu, Yunfeng Chao, Dejun Li, Caiyun Wang, Gordon G. Wallace
Summary: An efficient cathodic electrodeposition method was developed to coat Co-based metal-organic frameworks (Co-MOF) on carbon fiber cloth (CFC), commonly used in energy fields. The use of a highly active Co metal surface promoted the nucleation and growth of Co-MOF in 3D rodlike crystal bundles. The resulting Co-MOF/CFC electrode exhibited a high areal capacitance, cycling stability, and rate capability. The assembled all-solid-state supercapacitor device (Co-MOF/CFC//AC) showed excellent energy density and power density. This work provides an effective approach for the electrosynthesis of MOF films and their use in energy storage and conversion fields.
Article
Energy & Fuels
Ravi Nivetha, Jayasmita Jana, Santhosh Ravichandran, Huynh Ngoc Diem, Tran Van Phuc, Jin Suk Chung, Sung Gu Kang, Won Mook Choi, Seung Hyun Hur
Summary: 2D bimetallic MOFs (M-Ni, Zn, Co, and Cu) prepared by solvothermal and exfoliation condition exhibit excellent electrochemical performance, with high surface area and abundant active sites that can accelerate reaction kinetics. They have low overpotentials for hydrogen and oxygen evolution reactions and high specific capacitances when used as supercapacitor electrodes.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Environmental
Tanka Mukhiya, Arjun Prasad Tiwari, Kisan Chhetri, Taewoo Kim, Bipeen Dahal, Alagan Muthurasu, Hak Yong Kim
Summary: This study successfully synthesized N-doped CNTs using a self-templated metal-organic framework method, embedding them in a 3D array of electrospun CNF. This approach not only allows for direct synthesis of CNTs at relatively low temperature, but also enables the controlled assembly of pre-designed shapes.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Chemistry, Physical
Yangyang Liu, Yihan Wang, Shenlong Zhao, Zhiyong Tang
Summary: This review article focuses on the application of metal-organic framework (MOF)-based materials in the oxygen evolution reaction (OER). The fundamental catalytic mechanisms and evaluation parameters of OER are discussed, followed by the design strategies and research progress of MOF-based OER catalysts. The recent research advances in alkaline, acidic, and neutral electrolytes are summarized, and current challenges and future opportunities in materials design, theoretical understanding, advanced characterization techniques, and industrial applications are provided.
Article
Chemistry, Physical
Kamakshaiah Charyulu Devayulalli, Jaewon Lee, Sinwoo Kang, Sanghyeon Moon, S. V. . Prabhakar Vattikuti, Jaeyoung Lee, Kiyoung Lee
Summary: Precious metal-free electrocatalysts are crucial for the production of green hydrogen using low-cost electrolysis technology. This study proposes a low-cost electrocatalyst composed of cadmium sulfide nanoparticles decorated in a Cobalt-based metal-organic framework, showing excellent electrochemical reactivity and stability, making it a promising electrolyzer for commercial power market.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Lili Wang, Wurigamula He, Ying Yang, Helin Zhang, Dongyan Liu, Wensheng Yu, Qianli Ma, Duanduan Yin, Xiangting Dong
Summary: Active site engineering is an essential strategy to improve the electrocatalytic capability of electrocatalysts for practical applications. This study synthesized Co3O4/nickel foam and Co2(P4O12)/nickel foam electrocatalysts with flower-shaped and sea urchin-shaped structures, showing good catalytic activity for overall water splitting.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Selvasundarasekar Sam Sankar, Kannimuthu Karthick, Sangeetha Kumaravel, Arun Karmakar, Madhu Ragunath, Subrata Kundu
Summary: Synthesized bimetallic (nickel and iron) zeolite imidazolate framework-based nanofibrous materials through electrospinning exhibit exceptional electrocatalytic performance in both oxygen-evolution reaction (OER) and hydrogen-evolution reaction (HER) under different pH conditions, showing small overpotential and high electrochemical active surface area.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Xiaowei Cai, Fei Peng, Xingyu Luo, Xuejie Ye, Junxi Zhou, Xiaoling Lang, Meiqin Shi
Summary: Metal-organic frameworks (MOFs) have shown promising potential as electrode materials for the oxygen evolution reaction (OER). This study revealed that MOFs with tetrahedral Co sites exhibit continuous active sites in the OER, while those with octahedral sites are inert. Co-N coordination is more favorable for electrochemical activation than Co-O coordination, leading to the gradual increase in activity of the MOF in the OER process.
Article
Materials Science, Multidisciplinary
Shoufu Cao, Sainan Zhou, Hongyu Chen, Shuxian Wei, Siyuan Liu, Xiaojing Lin, Xiaodong Chen, Zhaojie Wang, Wenyue Guo, Xiaoqing Lu
Summary: Atomically dispersed catalysts, specifically dual-atom catalysts (DACs), have shown promising potential in CO2 reduction reaction (CO2RR). This study investigates the advantages of DACs in CO2RR through the use of FeCo-NC and Fe-NC/Co-NC catalysts. The results demonstrate that DACs have a balanced interaction between dual-atom centers and N coordination, leading to improved catalytic performance in the production of CH3OH and CH4 while inhibiting hydrogen evolution reaction.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Physical
Lili Fan, Xiaofei Wei, Xuting Li, Zhanning Liu, Mengfei Li, Shuo Liu, Zixi Kang, Fangna Dai, Xiaoqing Lu, Daofeng Sun
Summary: This study reports a phosphorus-doped catalyst FeNPC with penta-coordinated single atom sites for efficient oxygen reduction reaction (ORR). The electronic distribution and adsorption strength of Fe-N-4 can be adjusted, reducing the reaction free energy of the potential-limiting step. Electrochemical tests show that FeNPC exhibits remarkable ORR activity and stability in alkaline, neutral, and acidic media.
Article
Chemistry, Physical
Honglin Li, Shoufu Cao, Hongman Sun, Yonglian Lu, Ying Zhang, Xiaoqing Lu, Jingbin Zeng, Zifeng Yan
Summary: In this study, Cu-based/CxNy catalysts were fabricated to improve the selectivity of C2H4 in CO2RR, overcoming the selectivity and stability issues of Cu catalyst. The precise tailoring of the synergistic effect between different Cu species and carbon nitride hybrids enabled the precise control of the product selectivity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Electrochemistry
Zhaojie Wang, Yizhu Shang, Hongyu Chen, Shoufu Cao, Qiuying Zhu, Siyuan Liu, Shuxian Wei, Xiaoqing Lu
Summary: The unique crystal structure and active electronic properties of a Cu-based catalyst are crucial for CO2RR. A series of copper hydroxyphosphate catalysts were synthesized and applied in CO2RR, where the concentration of OH- and NH4+ played an important role in the formation and aggregation of the crystal structures. Compared to Cu-2(OH)PO4, Cu-5(OH)(4)(PO4)(2) showed superior selectivity and activity for CO2RR to C2H4. With a Faradaic efficiency of C2H4 over 37.4% and outstanding stability, Cu-5(OH)(4)(PO4)(2) had more hydroxyl groups (-OH) and a higher catalytic area, providing increased interaction with CO2 molecules and more active sites for CO2RR. This work offers a new perspective for the design of stable Cu-based catalysts with tunable chemical environment for CO2RR.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Hao Dong, Qiuying Zhu, Lu Wang, Xiaokun Yue, Hongxu Fang, Zhaojie Wang, Siyuan Liu, Shuxian Wei, Xiaoqing Lu
Summary: The distribution and connectivity of pores in shale reservoirs have a significant impact on CO2-enhanced oil recovery (CO2 EOR) in shale. Molecular dynamics simulation was used to investigate the microscopic mechanism of CO2 EOR in shale nanopores with different pore width distributions and connectivity. The results showed that pore connectivity has a significant effect on oil displacement, with the recovery efficiency being highest for connected pores, followed by double pores and single pores. The results provide theoretical support for the study of CO2 EOR in shale with different pore width distributions and connectivity, as well as the exploitation of shale oil.
Review
Chemistry, Physical
Hongyu Chen, Shoufu Cao, Lu Wang, Xiaojing Lin, Qiuying Zhu, Yizhu Shang, Shuxian Wei, Siyuan Liu, Zhaojie Wang, Baojun Wei, Xiaoqing Lu
Summary: The synthesis of boron-doped amorphous zinc oxide with or without antimony nanoparticles embedding was reported. The introduction of antimony nanoparticles led to a switching of product from CO to formate in carbon dioxide reduction, which was attributed to the weakened charge interaction on zinc atoms by antimony.
Article
Chemistry, Physical
Jun Xu, Heng Tang, Shoufu Cao, Xiaoyi Chen, Zhao Chen, Yuanming Ma, Yan Zhang, Junwei Chen, Xiaoqing Lu, Chun-Sing Lee
Summary: In this study, few-layered 1T-MoSe2 nanosheets were used as a multifunctional interlayer and a catalytic current collector in Li-S batteries to enhance their performance and stability.
Article
Materials Science, Multidisciplinary
Shoufu Cao, Hongyu Chen, Jiao Li, Zengxuan Chen, Chunyu Yang, Shuxian Wei, Siyuan Liu, Zhaojie Wang, Xiaoqing Lu
Summary: In this study, first-principle calculations were used to investigate the mechanism of CO2 reduction reaction on single metal atoms anchored to nitrogen-containing carbon. The results show that nitrogen-containing carbon effectively immobilizes and activates metal centers, with higher activity observed on M-NC surfaces compared to MPc surfaces. The study provides profound insights into the coordination environment and the role of various metal centers in M-N-x materials.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
Xiaodong Chen, Shoufu Cao, Xiaojing Lin, Xiaofei Wei, Zhaojie Wang, Hongyu Chen, Chengcheng Hao, Siyuan Liu, Shuxian Wei, Daofeng Sun, Xiaoqing Lu
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
Engineering, Chemical
Jiaqi Xu, Shoufu Cao, Mengxiao Zhong, Xiaojie Chen, Weimo Li, Su Yan, Ce Wang, Zhaojie Wang, Xiaoqing Lu, Xiaofeng Lu
Summary: In this study, cobalt-based hydroxide derived from ZIF-67 was incorporated with iridium on the surface of Ni-contained carbon nanofibers to enhance its alkaline oxygen evolution reaction (OER) property. The optimized sample displayed remarkable OER activity, with an overpotential of only 240 mV to reach 10 mA cm-2, compared to commercial IrO2 electrocatalyst (331 mV). The unique nanofibrous structure of Ni-CNFs provided desirable electrical conductivity, leading to excellent durability for OER testing. Furthermore, a water electrolyzer built using the prepared Ni-CNFs/Ir-Co(OH)2 and Pt/C electrodes showed superior performance compared to Pt/C||IrO2 cell.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Xiaofei Wei, Huakai Xu, Chuanhai Jiang, Zhifei Wang, Yuguo Ouyang, Chunyu Lu, Yuan Jing, Shiwei Yao, Xiaoqing Lu, Fangna Dai
Summary: Metal atom dispersed catalysts with high catalytic activity and accurate active sites are promising for electrocatalytic CO2 reduction reactions. Fe atom catalysts with pairs of Fe atoms at different distances were constructed and the effect of distance on catalytic performance was investigated. The FeN4-D1 structure exhibited good selectivity and catalytic activity for producing CO due to its structural stability and activation effect for CO2. Moreover, the FeN4-D1 structure had superior catalytic performance and selectivity for the CO2RR to ethanol by promoting the C-C coupling process through the modification of the interaction between the FeN4-D1 structure and *CO intermediates.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Zengxuan Chen, Shoufu Cao, Jiao Li, Chunyu Yang, Shuxian Wei, Siyuan Liu, Zhaojie Wang, Xiaoqing Lu
Summary: This study reveals that introducing different numbers of sulfur atoms into N coordination can enhance the structural stability and catalytic activity of the catalyst, accelerating the CO2 reduction reaction. The sulfur atom substitution has significant influence on the product selectivity and catalytic performance.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Review
Chemistry, Multidisciplinary
Xingheng Zhang, Qi Hou, Shoufu Cao, Xiaojing Lin, Xiaodong Chen, Zhaojie Wang, Shuxian Wei, Siyuan Liu, Fangna Dai, Xiaoqing Lu
Summary: This review presents recent advances of cobalt phosphate (CoPi) based catalyst in the oxygen evolution reaction (OER) process of water splitting, including structural composition, synthesis methods, and OER enhancement. CoPi has attracted great attention due to its low cost, good stability, high catalytic activity, and redox properties.
Article
Chemistry, Physical
Zhaojie Wang, Qi Hou, Xingheng Zhang, Huanhuan Liu, Xiaojing Lin, Hongyu Chen, Ruidong Ding, Shuxian Wei, Xiaoqing Lu, Siyuan Liu
Summary: This study proposes a method of enhancing the activity of catalysts for alkaline water electrolysis through etching and doping. The etching of silver-doped cobalt phosphate catalysts with alkaline solutions can increase the number of active sites and electrical conductivity, thereby significantly improving electrocatalytic performance. The catalyst exhibits excellent stability and efficient electrolysis performance under industrial conditions.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Lili Fan, Xiaofei Wei, Xuting Li, Zhanning Liu, Mengfei Li, Shuo Liu, Zixi Kang, Fangna Dai, Xiaoqing Lu, Daofeng Sun
Summary: This study reports a phosphorus-doped Fe-N-C catalyst with penta-coordinated single atom sites for efficient oxygen reduction. The catalyst exhibits remarkable ORR activity and stability in alkaline, neutral, and acidic media.
