Article
Engineering, Environmental
Taotao Gao, Xiaoqin Li, Xiaojuan Chen, Caixia Zhou, Qu Yue, Hongyan Yuan, Dan Xiao
Summary: The study successfully prepared a unique Fe/C@CNT carrier with an improved heterostructure, enhancing the stability and efficiency of catalysts. The Ni-Ru@Fe/C@CNT exhibited superior bifunctional activity and enduring stability, outperforming traditional catalysts significantly.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Zuoqing Liu, Yuxiao Lin, Haoyu Nie, Dongliang Liu, Yinwei Li, Xinsheng Zhao, Tao Li, Guangming Yang, Yifei Sun, Yinlong Zhu, Wei Wang, Ran Ran, Wei Zhou, Zongping Shao
Summary: A new triple conducting nanocomposite is reported as a promising air electrode for reversible proton ceramic electrochemical cells (R-PCECs). The nanocomposite, developed through Er doping induced phase separation, exhibits excellent electrochemical performance, surpassing traditional electrodes by 82.3% and 122.7% in fuel cell and electrolysis modes, respectively.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Shankary Selvanathan, Pei Meng Woi, Vidhya Selvanathan, Mohammad Rezaul Karim, Kamaruzzaman Sopian, Md. Akhtaruzzaman
Summary: Electrocatalytic water splitting is a promising alternative for renewable energy by producing high purity hydrogen gas. Development of electrocatalysts for both hydrogen and oxygen evolution reactions is crucial for improving the efficiency of the water splitting process. Copper-based substrates, with unique properties such as low cost, high tensile strength, good thermal and electrical conductivity, ultraporous hierarchical structure, and non-corrosiveness, have been extensively studied.
Article
Chemistry, Physical
Junyu Zhang, Jian Dang, Xiaohong Zhu, Jugang Ma, Minggao Ouyang, Fuyuan Yang
Summary: This study presents a method to enhance the catalytic activity of nickel wire mesh by using ultra-low Pt doped Ni(OH)2 arrays. The improved electrode showed superior performance in the hydrogen evolution reaction (68 mV @ 100 mA cm-2) and oxygen evolution reaction (269 mV @ 100 mA cm-2) in alkaline electrolyte. The assembled alkaline water electrolyzer achieved excellent durability (> 600 h) and low voltage requirement (1.87 V @ 400 mA cm-2).
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Review
Environmental Sciences
Yuling Xu, Xinyi Zhang, Yanyan Liu, Renjun Wang, Yuewei Yang, Junfeng Chen
Summary: Hydrogen production by electrolyzing water is seen as an effective way to generate and store new energy using renewable sources. However, the slow kinetics and reliance on noble metal catalysts have hindered its wide application. The design and development of high-efficiency metal alloy catalysts have therefore become a research hotspot in promoting hydrogen production technology.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Electrochemistry
Zahra Mohammad Kazemi, Alireza Sabour Rouhaghdam, Ghasem Barati Darband, Meysam Maleki, Dabin Han, Sangaraju Shanmugam
Summary: This study presents a fast synthesis of multi-metal Ni-Cu-Fe micro-nano dendritic electrocatalysts on nickel foam, which exhibit high activity, durability, and low cost. The electrocatalysts have potential applications in electrochemical water splitting for both HER and OER reactions.
ELECTROCHIMICA ACTA
(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
Chemistry, Physical
Yuanjun Liu, Binbin Li, Yuyu Liu, Yiru Wu, Xingmei Guo, Junhao Zhang, Jun Zhu, Guoxing Zhu
Summary: Pre-catalysts that evolve into highly active species during the catalytic process have attracted researchers' attention. This study presents a new method for obtaining pre-catalysts with high activity by the formation of low-crystalline (oxy)hydroxides through a dissolution-redeposition process. These (oxy)hydroxides act as active substrates for catalysis, leading to excellent catalytic activity and stability.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Yanqiang Li, Zehao Yin, Xuan Liu, Ming Cui, Siru Chen, Tingli Ma
Summary: Molybdenum carbide-based catalysts show great potential in electrochemical reactions such as the hydrogen evolution reaction and oxygen evolution reaction due to their unique electronic structure and physicochemical properties. Research has systematically summarized the synthesis strategies, structure, and catalytic performance of these catalysts, highlighting the relationships between process-structure-property and analyzing catalytic mechanisms. Existing challenges and future perspectives for further development of molybdenum carbide-based catalysts have also been discussed.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Jingjun Shen, Jing Li, Bo Li, Yun Zheng, Xiaozhi Bao, Junpo Guo, Yan Guo, Chenglong Lai, Wen Lei, Shuangyin Wang, Huaiyu Shao
Summary: A cost-effective synthesis method of hierarchical nickel-iron (oxy)hydroxides nanosheets on iron foam with superhydrophilicity and superaerophobicity is reported. The as-fabricated electrode shows extraordinary oxygen evolution reaction (OER) activity with ultra-low overpotential and small Tafel slope in alkaline media. The rechargeable Zn-air battery assembled using this electrode demonstrates remarkable cycling performance. This work provides an economical approach to convert commercial Fe foam into robust electrocatalysts for sustainable energy conversion and storage systems.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Physical
Yang Liu, Yuanpeng Huang, Xiangfang Peng, Chenglu Liang
Summary: Selective surface nitridation of self-supported Co oxide nanobushes was conducted to form the Co5.47N@Co oxide nanobushes catalyst electrode for oxygen evolution reaction (OER). The nitridation process resulted in lattice expansion/distortion, rich oxygen vacancies, and promoted charge transfer on the catalyst's surface. Compared to Co oxide nanobushes, the Co5.47N@Co oxide nanobushes electrode exhibited better OER performances in alkaline electrolyte, with low overpotentials, high current densities, and stability for over 20 hours.
APPLIED SURFACE SCIENCE
(2023)
Article
Electrochemistry
Yingxue Wang, Jing Yu, Qi Liu, Jingyuan Liu, Rongrong Chen, Jiahui Zhu, Rumin Li, Jun Wang
Summary: Reasonable design of self-supporting electrocatalyst with porous structure and flexibility is crucial for hydrogen and oxygen evolution reactions. By combining inkjet printing, pyrolysis, and selenization technologies, CoSe2/CMF self-supporting electrode was constructed, exhibiting outstanding electrocatalytic behavior in hydrogen and oxygen evolution reactions. This study highlights the advance of selenides in electrocatalysis and provides insights for the design of high-efficiency self-supporting electrocatalysts for water splitting.
ELECTROCHIMICA ACTA
(2023)
Article
Engineering, Environmental
Ruo-Yao Fan, Ya-Nan Zhou, Meng-Xuan Li, Jing-Yi Xie, Wen-Li Yu, Jing-Qi Chi, Lei Wang, Jian-Feng Yu, Yong-Ming Chai, Bin Dong
Summary: In this study, bimetallic hydroxyl oxides with excellent oxygen evolution reaction (OER) performance were successfully constructed through one-step rapid electrochemical activation, showing advantages in stability and activity. This work provides a new design inspiration for the synthesis of bimetallic hydroxyl oxides with good dispersion, high activity, and long-term stability.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Liang Yan, Bing Zhang, Zhonggang Liu, Junlu Zhu
Summary: In this study, Cu-doped CoOOH porous nanoplates were designed on carbon fiber paper to enhance the performance of oxygen evolution reaction. The synergistic effect of Cu doping with oxygen vacancy significantly modulated the electronic structure of the catalyst, improving the OER kinetics and activity. The optimized 3D self-supported Cu-CoOOH/CFP exhibited unprecedented OER activity and superior stability, showcasing its potential as an efficient electrocatalyst for water oxidation.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Rikai Liang, Jinli Fan, Fengjing Lei, Peng Li, Chengyu Fu, Zikang Lu, Weiju Hao
Summary: This study proposes a one-step electroless plating method to fabricate economical, efficient, and ultrastable electrodes for hydrogen production via water splitting. The deposited cobalt phosphorus-based species on a nickel net exhibit tight interfacial contact, rapid electron transport, high intrinsic activity, and long-term durability. The resulting electrode demonstrates not only stable catalysis in alkaline simulated seawater but also under various alkaline extreme conditions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Coatings & Films
Shenggui Liu, Renjie Ji, Yonghong Liu, Fan Zhang, Hui Jin, Xianfa Li, Qian Zheng, Shuaichen Lu, Baoping Cai
Summary: This study investigates the effects of boric acid and water on the deposition of Ni/TiO2 composite coatings from ChCl-EG DES using nickel sulfate as the main precursor. Boric acid is found to inhibit the formation of Ni(OH)2 and solvent decomposition, while water can change the complex form of Ni2+ and reduce the average crystallite size of the coating.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Physical
Shenggui Liu, Chaojiang Li, Hossain Md Jaber, Yuxin Yang, Fan Zhang, Hui Jin
Summary: This study investigates the influence of pre-adsorbed inert particles on the nucleation and growth mechanism of nickel nanoparticles in electrodeposition. The results show that pre-adsorbed TiO2 particles significantly increase the cathodic reduction current, while codeposited TiO2 particles hinder the reduction process. These findings are important for understanding and improving the electro-codeposition process involving inert nanoparticles.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Fan Zhang, Shenggui Liu, Fei Wang
Summary: The nucleation and growth of Ni2+ during the jet electrodeposition process were studied, which are crucial for the quality of nickel coating. Different nanocluster deposition models were established and analyzed, providing a theoretical and experimental basis for the preparation of nickel coatings.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Shenggui Liu, Chaojiang Li, Hossain Md Jaber, Yuxin Yang, Fan Zhang, Hui Jin
Summary: This study investigates the role of inert particles in electrodeposition processes, finding that pre-adsorbed TiO2 particles can significantly increase the cathodic reduction current, while codeposited TiO2 particles hinder the reduction process. The findings are important for understanding and improving electro-codeposition processes involving inert nanoparticles.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)