Article
Chemistry, Physical
Xiaoyang Wang, Yu He, Xiaopeng Han, Jun Zhao, Lanlan Li, Jinfeng Zhang, Cheng Zhong, Yida Deng, Wenbin Hu
Summary: The research team developed a novel step-wise approach to construct the Co9S8@Co3O4/NF hybrid on nickel foam, which shows excellent electrocatalytic performance and is a potential material for water electrolysis.
Article
Engineering, Environmental
Taotao Ai, Huhu Wang, Weiwei Bao, Liangliang Feng, Xiangyu Zou, Xueling Wei, Liu Ding, Zhifeng Deng, Bin Rao
Summary: A low-cost and high-performance catalyst, Fe-V co-doping Ni3S2-based oblate-nanorod arrays electrocatalyst, has been successfully synthesized through hydrothermal technique. The incorporation of Fe and V, along with specific surface structures, enhances the activity and stability of the oxygen evolution reaction.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Dejuan Fa, Jiangyan Yuan, Guangyuan Feng, Shengbin Lei, Wenping Hu
Summary: Bimetallic electrocatalysts with well-defined architecture and monolayer characteristic were synthesized to explore the influence of coupling strength between metal centers on oxygen evolution reaction (OER) performance. Among the examined catalysts, CoTAPP-Ni-MF-2DP with the strongest coupling strength exhibited the best OER performance. These model systems can provide valuable insights into the structure-performance relationships for rational catalyst design.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Mohd Riyaz, Shuchi Gupta, Neetu Goel
Summary: The study presents a comprehensive investigation on designing a graphene-based efficient electrocatalyst for the Oxygen Evolution Reaction (OER) through doping and co-doping with main group elements. It was found that sulfur-doped graphene exhibited the highest efficiency, which was further enhanced by adjusting the concentration of co-dopants B and N, leading to a significant reduction in overpotential to as low as 0.44 V.
Article
Engineering, Environmental
Youhai Cao, Weiqin Li, Huinan Guo, Mengyuan Yue, Yijing Wang
Summary: Researchers synthesized ultrafine NiFeCr trimetallic amorphous hydroxide nanodots using a one-step co-precipitation method, which fully exposes the surface and near-surface atoms. The catalysts showed enhanced OER activity due to the tuned atomic and electronic structure, achieving low overpotential and high mass activity.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Hui Feng, Dongxuan Guo, Dong-Feng Chai, Wenzhi Zhang, Zhuanfang Zhang, Liming Bai, Jin Xing, Guohua Dong
Summary: This study successfully prepared hollow/porous N, P-CoWO4@Co3O4 nano-cubes with heterogeneous structure through specific preparation methods. The heterogeneous structure facilitates electron transfer and increases electrochemical active sites, leading to excellent performance in the fields of oxygen evolution reaction and supercapacitor.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Yu Li, Gao Chen, Hsiao-Chien Chen, Yanping Zhu, Liangshuang Fei, Longwei Xu, Tiancheng Liu, Jie Dai, Haitao Huang, Wei Zhou, Zongping Shao
Summary: Although the bulk properties of catalytic materials can be easily regulated by doping, their surface where electrocatalysis occurs is often hard to be controlled. In this work, a surface tailoring strategy is proposed to finely manipulate the surface cation configuration of a Ruddlesden-Popper perovskite La2NiO4. By removing surface-enriched inactive La element and forming active Ni-Fe pairs, the surface tailored catalyst exhibits exceptional water oxidation performance. The study demonstrates that a dynamically reconstructed thin-layer surface with an equal amount of Ni and Fe elements, combined with a steady La-terminated subsurface, is the key to achieving high OER activity and durability.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
Kelsey Thompson, Anuj Kumar, Dipesh Neupane, Sanjay R. Mishra, Felio Perez, Ram K. Gupta
Summary: Due to the synergistic effect, binary transition metal phosphides CoMoP and NiMoP were successfully synthesized on Ni-foam and exhibited promising activities for both electrocatalytic hydrogen evolution reactions and supercapacitors.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Haoyuan Lv, Hongbo Guo, Kai Guo, Haitao Lei, Wei Zhang, Haoquan Zheng, Zuozhong Liang, Rui Cao
Summary: The study investigates the substituent position effect of Co porphyrins on oxygen electrocatalysis, highlighting the improved catalytic activity of 3,4,5-OMe-CoP due to enhanced charge transfer rate, mass transfer, and hydrophilicity. This work provides an effective strategy for enhancing catalytic activity and developing more efficient energy-related electrocatalysts.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Zhi-Peng Wu, Huabin Zhang, Shouwei Zuo, Yan Wang, Song Lin Zhang, Jing Zhang, Shuang-Quan Zang, Xiong Wen (David) Lou
Summary: A highly efficient bimetallic Ni-Fe selenide-derived OER electrocatalyst is reported in this study, with the structure-activity correlation of the active centers studied. It was found that the active center located on Ni sites showed moderate bindings with oxygenous intermediates, leading to enhanced OER performance.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Muhammad Arif, Salma Bilal, Anwar Ul Haq Ali Shah
Summary: This paper presents a detailed study on the synthesis of low-cost and efficient nitrogen-doped reduced graphene oxide nickel-silver (N-rGO-Ni/Ag) and nickel-cobalt (N-rGO-Ni/Co) nanocomposites as electrocatalysts in fuel cells. The nanocomposites exhibit remarkable electrocatalytic activity for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), with low onset and half wave potentials and satisfactory Tafel values.
Article
Chemistry, Analytical
Ruobing Zheng, Lili Zhu, Changdian Li, Ziqiang Wu, Yanan Huang, Jie Yang, Renhuai Wei, Xuebin Zhu, Yuping Sun
Summary: Misfit-layered Ca3Co4O9 was investigated as an oxygen evolution reaction catalyst for electrochemical water splitting. Oxygen vacancies were effectively induced by ball milling, as confirmed by electronic paramagnetic resonance and X-ray photoelectron spectrometer measurements. The sample with a ball milling time of 24 hours showed the best electrochemical performance, attributed to the induced oxygen vacancies and enhanced specific surface area. This work provides an effective route for improving the electrochemical oxygen evolution reaction performance of misfit-layered cobaltates.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Environmental
Xueyuan Wang, Yongxiao Tuo, Yan Zhou, Dong Wang, Shutao Wang, Jun Zhang
Summary: Structural manipulation of electrocatalysts by doping high-valence Ta into NiFe layered double hydroxide enhances OER activity through lattice expansion and electronic structure modification. The optimized Ta-NiFe LDH exhibits superior OER performance with lower overpotential and smaller Tafel slope. This work provides a theoretical basis for enhancing OER activity by doping LDH with high-valence foreign metals.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Green & Sustainable Science & Technology
Jordan Martinez, Jaime Mazario, Jose Luis Olloqui-Sariego, Juan Jose Calvente, Mohanad D. Darawsheh, Guillermo Minguez-Espallargas, Marcelo E. Domine, Pascual Ona-Burgos
Summary: This study presents the synthesis of supported Fe-doped Pd nanoparticles for electrocatalytic water splitting. The bimetallic PdFe-NPs show superior activity and stability, attributed to the synergetic effect of Fe-Pd interactions and the protecting role of the MOF organic linker.
ADVANCED SUSTAINABLE SYSTEMS
(2022)
Review
Chemistry, Physical
Zhen Li, Ying Wang, Lawrence Yoon Suk Lee
Summary: This review focuses on recent progress in both experimental and theoretical research on synergistic modulation for transition-metal-based alkaline oxygen evolution reaction (OER) electrocatalysts. The synergistic effects are discussed in various aspects including metal reactive sites and heterogeneous atoms, heterogeneous atoms and crystallographic structure, electronic structure and morphology, elementary reaction steps, and external fields.
Article
Chemistry, Analytical
Zhaohong Su, Xiaolin Xu, Haitao Xu, Yi Zhang, Chaorong Li, Yan Ma, Dongcheng Song, Qingji Xie
Article
Chemistry, Analytical
Zhaohong Su, Haitao Xu, Xiaolin Xu, Yi Zhang, Yan Ma, Chaorong Li, Qingji Xie
Article
Materials Science, Multidisciplinary
Zhifang Huang, Yan Zhao, Haitao Xu, Jingzhe Zhao
MATERIALS RESEARCH BULLETIN
(2018)
Article
Chemistry, Physical
Haitao Xu, Wenjing Liu, Yan Zhao, Di Wang, Jingzhe Zhao
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2019)
Article
Electrochemistry
Di Wang, Jiao Li, Yan Zhao, Haitao Xu, Jingzhe Zhao
ELECTROCHIMICA ACTA
(2019)
Article
Electrochemistry
Di Wang, Shu Wang, Yan Zhao, Haitao Xu, Jingzhe Zhao
ELECTROCHIMICA ACTA
(2020)
Article
Chemistry, Multidisciplinary
Haitao Xu, Tianyang Liu, Shuxing Bai, Leigang Li, Yiming Zhu, Juan Wang, Shize Yang, Yafei Li, Qi Shao, Xiaoqing Huang
Article
Chemistry, Physical
Wenjing Liu, Shu Wang, Yan Zhao, Caixia Sun, Haitao Xu, Jingzhe Zhao
Summary: hierarchical Bi2S3/BiOCl microflowers with open hollow structures were synthesized via PVP-induced anion exchange process. The amount of PVP molecules controlled the reaction speed and growth status of Bi2S3 nanoflakes. The h-Bi2S3/BiOCl microflowers exhibited enhanced photocatalytic activity for the degradation of ciprofloxacin under visible-light irradiation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Haitao Xu, Dianhua Song, Jiao Li, Yan Zhao, Ruijie Yang, Jingzhe Zhao
Summary: The demand for sustainable energy has led to the development of efficient and earth-abundant electrocatalysts. In this study, a composite catalyst, CuCo2S4@(Cu,Co)(2)Cl(OH)(3), was synthesized using a chlorine assisted ion-exchange and in-situ sulfurization processes, which showed good alkaline oxygen evolution reaction activities. The composite catalyst exhibited low electron transfer resistance and comparable performance to commercial catalysts under alkaline conditions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Caixia Sun, Ran Li, Yan Zhao, Ruijie Yang, Haitao Xu, Dechong Ma, Jingzhe Zhao
Summary: Designing semiconductor photocatalysts with high visible-light sensitivity and good photocatalytic performance is crucial for pollutant remediation and energy storage. In this work, a series of composite photocatalysts were synthesized, exhibiting superior photocatalytic activities.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Analytical
Haitao Xu, Chaorong Li, Dongcheng Song, Xiaolin Xu, Yan Zhao, Xiaoying Liu, Zhaohong Su
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)