Article
Chemistry, Physical
Selvasundarasekar Sam Sankar, Arumugam Rathishkumar, Kathiresan Geetha, Subrata Kundu
Summary: Electrospinning is a reliable method for synthesizing one dimensional fibrous material and can be used to prepare electrocatalysts; The cobalt phosphate fibrous network as an electrocatalyst can effectively promote oxygen evolution reaction in both alkaline and neutral media, exhibiting good stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
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)
Review
Chemistry, Multidisciplinary
Nan Jiang, Zhiwei Zhu, Wenjie Xue, Bao Yu Xia, Bo You
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)
Review
Materials Science, Ceramics
Pawan Rekha, Sarika Yadav, Lovjeet Singh
Summary: Electrolytic water splitting using cobalt phosphate-based materials is effective for producing oxygen and hydrogen in a non-toxic, green, and cost-effective manner. The combination of cobalt phosphates with semiconductors as co-catalysts facilitates fast electron transfer in solar water oxidation. The unique lattice structure of phosphate group aids in the adsorption and dissociation of water on the electrode surface.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Shenghua Ye, Yaqi Lei, Tingting Xu, Lirong Zheng, Zhida Chen, Xiuyuan Yang, Xiangzhong Ren, Yongliang Li, Qianling Zhang, Jianhong Liu
Summary: In this study, phosphate FeCo(H3O)(PO4)(2) nanosheet arrays were synthesized using an electrochemical strategy. It was found that FeCo(H3O)(PO4)(2) nanosheet arrays could undergo significant self-reconstruction under the conditions of oxygen evolution reaction (OER), resulting in the formation of Fe0.5Co0.5OOH nanosheet arrays with low crystallinity. The high Fe content in Fe0.5Co0.5OOH nanosheet arrays promoted the formation of active Fe3+-O-Fe3+ motifs and enhanced the reaction order on the hydroxyl ion, leading to outstanding OER catalytic performances.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Multidisciplinary
Ning Wang, Pengfei Ou, Sung-Fu Hung, Jianan Erick Huang, Adnan Ozden, Jehad Abed, Ivan Grigioni, Clark Chen, Rui Kai Miao, Yu Yan, Jinqiang Zhang, Ziyun Wang, Roham Dorakhan, Ahmed Badreldin, Ahmed Abdel-Wahab, David Sinton, Yongchang Liu, Hongyan Liang, Edward H. Sargent
Summary: Direct electrolysis of pH-neutral seawater to generate hydrogen faces an anodic competition issue between the chlorine evolution and the oxygen evolution reaction (OER), resulting in low current density and limited operating stability. In this study, a proton-adsorption-promoting strategy has been proposed to increase the OER rate, allowing for enhanced and stable neutral seawater splitting. Palladium-doped cobalt oxide (Co3-xPdxO4) catalysts exhibit the best performance with an OER overpotential of 370 mV at 10 mA cm(-2) in pH-neutral simulated seawater, outperforming Co3O4 by 70 mV. Co3-xPdxO4 catalysts also demonstrate long-term stability in neutral seawater, with 450 hours at 200 mA cm(-2) and 20 hours at 1 A cm(-2). Experimental and theoretical analyses suggest that the inclusion of SPA cations accelerates the rate-determining water dissociation step in the neutral OER pathway, while ruling out additional OER sites as a main factor.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Daying Guo, Zhihao Zeng, Zhixin Wan, Yan Li, Bin Xi, Chengxin Wang
Summary: An active and durable CoN-containing oxygen evolution reaction (OER) electrocatalyst was reported, functioning efficiently in a neutral medium. The synthesized composite material, (N, S)-RGO@CoN, showed excellent OER performance in a neutral electrolyte, with uniform growth and strong chemical coupling of nanostructured CoN on the (N, S)-RGO matrix. Both experimental studies and density functional theory calculations supported the remarkable OER activity mechanism of ALD CoN electronic coupling to the carbon substrate.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Linfeng Yang, Xue Li, Xiangjun Yang, Xiaoqiang Wu, Xiaonan Liu
Summary: Complex oxides-based catalysts have attracted great interest due to their unique crystalline structure and surface state. However, it is challenging to use them for oxygen evolution reaction (OER) due to difficulties in manipulating their activity and durability. In this study, mullite-based catalysts were synthesized using a practical hydrothermal method. By optimizing the composition, the catalyst (Bi2(Fe0.9Ni0.1)4O9) showed excellent OER activity and durability in neutral and alkaline conditions. The results provide a new avenue for developing high-performance OER electrocatalysts by controlling the surface composition of complex oxides.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Yue Zhang, Zhe Zhang, Xuetao Zhang, Xinglong Gao, Zhihui Shang, Xuezhen Huang, Enyan Guo, Conghui Si, Mingzhi Wei, Qifang Lu, Xiujun Han
Summary: In this study, self-supporting electrodes were successfully prepared using cotton fiber filtration paper as a support, demonstrating low overpotential and excellent catalytic performance. Furthermore, theoretical calculations revealed that the addition of Co atoms to the nanospheres enhanced the catalytic activity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Nanoscience & Nanotechnology
Yu Kang, Yangkun He, Darius Pohl, Bernd Rellinghaus, Dong Chen, Marcus Schmidt, Vicky Suess, Qingge Mu, Fan Li, Qun Yang, Hedong Chen, Yufei Ma, Gudrun Au, Guowei Li, Claudia Felser
Summary: Transition metal chalcogenides like CoS2 have been recognized as competitive catalysts for the oxygen evolution reaction. In this study, the interface structure between the modified layer and precatalyst of a topological CoS2 single crystal was directly investigated. It was found that a compact Co3O4 interface structure allows fast electron transfer, leading to competitive reactivity despite the low surface area. These findings contribute to understanding the catalytic origins of transition metal chalcogenides and designing high-performance catalysts with interface-phase engineering.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Jun Shen, Qin Li, Zhenyu Cai, Xiaolin Sun, Jingquan Liu
Summary: This study innovatively designs a general strategy to prepare controlled MOF-based three-dimensional nanoparticle-array-structured catalysts with self-support and well-orientation. The prepared catalyst exhibits excellent performance, including synergistic effect, high specific surface area, fast electron transport, more exposed active sites, and enhanced electrochemical stability, making it a potential industrial water-splitting catalyst for hydrogen production. This study presents a new line for the preparation of more nanoscale electrocatalysts based on MOF.
ACS APPLIED NANO MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Chunfeng Zhu, Zhongyuan Yu, Tong Lin, Jintang Li, Xuetao Luo
Summary: This study successfully synthesized carbon- and nitrogen-doped cobalt phosphate catalysts with excellent electrocatalytic performance, showing good stability and low overpotential. The research results demonstrate the possibility of preparing low-cost OER catalysts based on transition metal phosphates and provide insights into the controlled synthesis process of different morphologies.
Article
Chemistry, Multidisciplinary
Ngoc-Diem Huynh, Won Mook Choi, Seung Hyun Hur
Summary: In this study, various two-dimensional materials were used as supports for the bimetallic Co and Mo sulfide/oxide (CMSO) heterostructure. The CMSO supported on reduced graphene oxide (rGO), graphite carbon nitride (gC3N4), and siloxene (SiSh) exhibited better water electrolysis activity compared to pristine CMSO. Particularly, the CMSO@rGO showed a large surface area, low interface charge-transfer resistance, low overpotential of 259 mV (10 mA/cm2), a Tafel slope of 85 mV/dec, and excellent long-term stability over 40 hours of continuous operation in the oxygen evolution reaction.
Article
Chemistry, Physical
Kaiwen Wang, Ronghui Jin, Yuhua Liu, Jing Ai, Zhipeng Liu, Xiaotian Li, Nan Li
Summary: The electrode with three-dimensional ordered macroporous NiFe2O4 on carbon cloth (3DOM-NiFe2O4/CC) demonstrates high catalytic activity for oxygen evolution reaction (OER) due to its ordered macropores and highly conductive carbon cloth substrate. This electrode exhibits excellent mass transport and electron mobility capabilities.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Engineering, Environmental
Tianshui Li, Xiuping Zhao, Marshet Getaye Sendeku, Xingheng Zhang, Ling Xu, Zhaolei Wang, Shiyuan Wang, Xinxuan Duan, Hai Liu, Wei Liu, Daojin Zhou, Haijun Xu, Yun Kuang, Xiaoming Sun
Summary: This work presents phosphate-decorated Ni3Fe-layered double hydroxides grown on cobalt phosphide nanoarray as an electrode for direct seawater splitting. The electrode exhibits high intrinsic activity and 100% selectivity towards seawater oxidation in a near neutral electrolyte. The phosphate layer on the catalyst surface weakens the adsorption of Cl- and resists local pH changes, leading to prolonged stable seawater splitting.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Yu-Han Zhang, Ding Zhang, Lin-Rong Wu, Jun Ma, Qun Yi, Zhaoxiang Wang, Xuefeng Wang, Zhen Wu, Chu Zhang, Naifang Hu, Shu-Chih Haw, Jin-Ming Chen, Zhiwei Hu, Guanglei Cui
Summary: This study stabilizes the lattice oxygen in Li-rich Mn-based oxides and reduces the generation of O-2 through a swing-like non-isothermal sintering technique. By increasing the number of holes in the O-2p orbitals and decreasing the number of unstable O-2p holes forming O-2, the sample exhibits slower voltage fading and better cycling stability.
ADVANCED ENERGY MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Xiaotao Ma, Yu Li, Guo Qian, Xianxian Zhou, Xiaogang Hao, Donghong Duan, Shibin Liu
Summary: In this study, Ni0.85Se microspheres were successfully synthesized through a simple method and demonstrated excellent capability in trapping polysulfides and catalyzing the conversion of shorter-chain polysulfides in lithium sulfur batteries. The Ni0.85Se/C cathode exhibited high cycling stability and coulombic efficiency in the cycling tests.
Article
Chemistry, Multidisciplinary
Haijun Zhao, Linrong Wu, Jinlv Tian, Ding Zhang, Xiaofeng Li, Shoudong Xu, Liang Chen, Qun Yi, Kehua Dai, Huijuan Guo
Summary: In this study, a high-performance sodium-ion battery cathode material, Na0.44MnO2, was successfully synthesized using molten salt chemistry. The prepared material exhibits excellent electrochemical stability, with a capacity retention rate of 85.4% after 500 cycles and 80.5% after 300 cycles in full-cell cycling tests. The transformation process of the material from its Na-birnessite stage was also studied. This research provides a helpful reference for the preparation of universal oxide cathode materials for sodium-ion batteries.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Dingyu Nan, Shoudong Xu, Liang Chen, Zhonghua Lu, Ding Zhang, Tao Wei, Jiaqi Chen, Zhi Li
Summary: In this study, carbon materials were constructed using sucrose as the carbon source, and used to fabricate high-performance potassium-ion hybrid capacitors. These capacitors exhibit superior rate performance and high pseudocapacitive proportion due to the formation of a stable solid electrolyte interface. The potassium-ion hybrid capacitor device shows high energy density and ultra-stable lifespan.
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Multidisciplinary
Fujin Li, Liang Chen, Leiyi He, Hongyu Ruo, Shoudong Xu, Ding Zhang, Jiaqi Chen, Shibin Liu
Summary: To improve the energy density of lithium-ion batteries, researchers have explored alternative alloy-based anode materials to replace graphite. However, these alloys face challenges due to volume expansion, leading to poor electrochemical performance. To overcome this, various strategies including nanostructuring and introducing conductive phases have been investigated. In this study, a pomegranate-like NiSb/C composite was fabricated and showed stable reversible capacity and rate performance. The performance mechanisms were analyzed using electrochemical impedance spectroscopy and distribution of relaxation times analysis.
Article
Materials Science, Multidisciplinary
Bo Zhang, Shoudong Xu, Zhonghua Lu, Zhitao Zhang, Liang Chen, Ding Zhang
Summary: Co-regulating vacancies and doping were utilized to synthesize hexagonal columnar P2-Na0.5Li0.1Ni0.2Mn0.7O2, which increased the interlayer spacing of Na+ and offered numerous active sites. P2-Na0.5Li0.1Ni0.2Mn0.7O2 exhibited impressive electrochemical performance, demonstrating its potential for high-performance sodium-ion batteries.
Article
Chemistry, Multidisciplinary
Qian Guo, Xiaoxiao Liu, Yu Li, Xianxian Zhou, XiaoTao Ma, Donghong Duan, Fuxiang Li, Shibin Liu
Summary: The electrocatalytic mechanism/performance of P-Ni0.96S@C and Li-S batteries as clean energy is conducive to sustainable development. Heteroatom-doped transition metal compounds possess abundant defects and subtle electron properties, which have broad potential in solving the problems that hinder the commercial application of Li-S batteries. The P-Ni0.96S@C/CP electrode exhibited excellent dynamics and a high specific capacity, delivering stable long cycle performance and a high areal capacity.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Lin-Rong Wu, Yu-Han Zhang, Zhen Wu, Jinlv Tian, Haorui Wang, Haijun Zhao, Shoudong Xu, Liang Chen, Xiaochuan Duan, Ding Zhang, Huijuan Guo, Ya You, Zhi Zhu
Summary: A multi-site substituted strategy is employed to enhance the stability of O-3-type NaNi0.5Mn0.5O2. Simulations indicate that the Ti substitution decreases the charge density of Ni ions and improves the antioxidative capability of the material. In situ characterizations verify that the complicated phase transformation is mitigated during the charge/discharge process, resulting in greatly improved structure stability. The co-substituted cathode delivers a high-rate capacity of 97 mAh g(-1) at 5 C and excellent capacity retention of 81% after 400 cycles at 0.5 C.
Article
Chemistry, Inorganic & Nuclear
Shaoxiong Bai, Liang Chen, Jingjing Bai, Chenghang Lv, Shoudong Xu, Ding Zhang, Haibin Meng, Chunli Guo, Huimin Yang, Chenjing Shang
Summary: High valence vanadium-doped NiV-layered double hydroxides catalyst is used for the selective oxidation of benzylamine, replacing the oxygen evolution reaction. The introduction of vanadium changes the electronic state and Lewis acidic sites on the surface, promoting the conversion of benzylamine. A NiV-LDH based two-electrode electrolyzer coupled with the benzylamine oxidation reaction and hydrogen evolution reaction can achieve high current density at a lower cell voltage compared to conventional water splitting methods.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Xiaobao Huang, Ding Zhang, Shoudong Xu, Liang Chen, Xiaochuan Duan
Summary: Ammonium phosphate ((NH4)(3)PO4) has been successfully used as a surface treatment reagent for Li-rich cathode materials, leading to significantly improved initial Coulomb efficiency and cycling stability. This improvement is achieved through the creation of integrated surface structures, including oxygen vacancies, spinel phases, and Li3PO4 coating. The study highlights the effectiveness of ammonium phosphate surface treatment and its potential application in designing other cathode materials.
CHEMICAL COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Jin-Lv Tian, Lin-Rong Wu, Hai-Jun Zhao, Shou-Dong Xu, Liang Chen, Ding Zhang, Xiao-Chuan Duan
Summary: This study investigates the effect of partial substitution of Mg for Ni on a high-sodium and lithium-free layered P2-type Na45/54Mg6/54Ni12/54Mn34/54O2 cathode. The Mg doping helps retain the P2 structure and enhance the cyclic stability, leading to reversible specific capacity and high capacity retention rate. The findings provide new insight into the development of durable cathode materials for sodium-ion batteries.
Article
Chemistry, Multidisciplinary
Ziru Hu, Donghong Duan, Haorui Wang, Shoudong Xu, Liang Chen, Ding Zhang
Summary: Boron doping has significant effects on improving the performance of LiNi0.8Co0.1Mn0.1O2. It reduces cation mixing, decreases charge transfer resistance, and improves the reversibility of the phase transition. The cathode material with 1.0 mol% boron doping shows excellent cycling performance.
CHEMICAL COMMUNICATIONS
(2023)
