Article
Energy & Fuels
Fei Mo, Yanyan Wang, Tingting Song, Xiaoliang Wu
Summary: In this paper, nitrogen-oxygen co-doped hierarchical porous carbon (HPC) was prepared through a one-step carbonization method. The HPC-4 electrode exhibited excellent electrochemical performance due to its three-dimensional interconnected hierarchical porous structure, high content of heteroatomic functional groups, and large specific surface area. A symmetrical supercapacitor assembled with two HPC-4 electrodes achieved an energy density of 21.13 Wh kg-1 (100 W kg-1). Furthermore, a zinc-ion hybrid capacitor constructed with HPC-4 as the cathode, zinc foil as the anode, and 2 M ZnSO4 as the electrolyte showed outstanding capacitance (282.81 F g-1), ultra-high energy density (100.56 Wh kg-1), and excellent cycle performance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Junfeng Zhao, Zhi Tang, Zichen Wang, Meiqi Xi, Xuedong Xie, Gang Yang
Summary: The researchers synthesized N, S co-doping porous carbon using a salt template assisted freeze drying method and prepared a flexible Zn//BC/ZnSO4//NSC ZHSC device with excellent electrochemical performance. The device showed a specific capacity of 113 mA h g-1, a high energy density of 90.8 W h kg-1, and a superior cycling stability with excellent capacity retention of 93.9% over 10000 cycles at 5 A g-1. The flexible ZHSC device based on NSC cathode and BC/ZnSO4 flexible electrolyte shows promising application potential in portable, flexible, and wearable electronics.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Lei Yang, Xiaojun He, Yuchen Wei, Hongqiang Li, Yan Yu, Jieshan Qiu
Summary: This research reports on the synthesis of N/P co-doped monolithic hierarchical porous carbon (NPMC) materials for zinc-ion hybrid capacitors (ZHCs). The NPMC materials exhibit excellent electron conduction and a well-developed porous structure. The introduction of ZnI2 into the electrolyte significantly increases the capacity of ZHCs.
JOURNAL OF POWER SOURCES
(2022)
Article
Energy & Fuels
Dewei Wang, Shuangyu Wang, Zeming Lu
Summary: The use of potassium thioacetate activation technique to produce S-doped 3D porous carbons (S-3DPCs) for ZHSCs cathodes shows excellent electrochemical performance, with a large specific surface area and a certain amount of sulfur, indicating significant potential for applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Tianliang Song, Huilian Hao, Yue Zhao, Xu Wang, Changwang Li, Wenyao Li
Summary: In this study, nitrogen and sulfur co-doped graphene/polyaniline nanoarrays (NSG/PANI) were synthesized and demonstrated exceptional energy storage properties in zinc ion hybrid supercapacitors. The NSG/PANI nanocomposite exhibited high specific capacitance, high energy density, and excellent capacitance retention rate. The results highlight the potential of NSG/PANI as a high-performance electrode material for zinc-ion hybrid energy systems.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Gaobo Lou, Gu Pei, Yitian Wu, Yingzhuo Lu, Yatao Wu, Xinqiang Zhu, Yajun Pang, Zhehong Shen, Qiang Wu, Shenyuan Fu, Hao Chen
Summary: A N, O co-doped two-dimensional carbon nanosheet material is successfully fabricated via one-step combustion conversion of wood for excellent cathode material in zinc ion hybrid supercapacitors. The resulting material shows a uniform structure, high specific surface area, and outstanding electrochemical performance, leading to superior specific capacity, high rate capability, and attractive energy density in ZHS.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Xiuli Huang, Wei Chen, Huan Liu, Shi Li, Wangwang Zhang, Yiming Ren, Rongli Zhang, Maodong Xu, Jiang Zhu
Summary: The high power density of supercapacitors and the high energy density of batteries make aqueous zinc-ion hybrid supercapacitors (ZIHSCs) a promising candidate for next-generation energy storage devices. Hierarchical porous carbon derived from protein-enriched recycled badminton feathers is considered a suitable cathode material for ZIHSCs applications. A N/O co-doped hydrophilic carbon with hierarchical porous architecture is successfully synthesized from the feathers, exhibiting high surface area, rich heteroatom doping, and good water wetting behavior. This unique carbon material provides numerous interfacial active sites and reversible redox reactions for high energy density, as well as fast kinetics for high power density. Remarkably, the assembled ZIHSC device shows ultrahigh capacity, admirable energy and power densities, and long cycling life, demonstrating the practical significance of converting biomass waste into high-performance carbon-based cathode materials.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Kezheng Shang, Yangjie Liu, Pingwei Cai, Kangkang Li, Zhenhai Wen
Summary: In this study, a hierarchical porous carbon sphere (HPCS) co-doped with N, P and S is developed, which features a three-dimensional porous frame structure to enhance conductivity and provide fast kinetics and short mass transfer pathways. The Zn-ion hybrid capacitors (ZIHCs) using HPCS-900 as the cathode material exhibit high capacity, excellent energy density and power density. The HPCS-900 also shows high stability with a capacity retention of 95.24% after 30,000 cycles.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Energy & Fuels
Jiong Wang, Xiangyang Zhou, Jingjing Tang, Juan Yang, Chucheng Luo, Penghui Cao, Sicheng Fan, Yayun Ma
Summary: Based on N, S co-doping, porous foam carbon with superior capacitive performance and nano-ZnS/porous carbon with fine rate performance were prepared and assembled into a LIC. The resulting LIC exhibits high energy density, high power density, and prolonged cyclic life, showing promise for applications in the energy reserve field.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
Arthi Gopalakrishnan, Chandra Sekhar Sharma
Summary: In this study, a dual carbon lithium-ion capacitor (LIC) device was proposed, in which novel carbon nanoparticles derived from candle soot pollutant were used as both anode and cathode materials. The optimized LIC device exhibited high specific energy and cycling stability, indicating its potential for practical applications.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Lei Yang, Xiaojun He, Yuchen Wei, Honghui Bi, Feng Wei, Hongqiang Li, Changzhou Yuan, Jieshan Qiu
Summary: In this study, interconnected N/P co-doped carbon nanocage was synthesized, which showed good electron transportation and ion adsorption properties. It exhibited excellent capacitance retention and energy density, providing a promising approach for energy storage device preparation.
Article
Chemistry, Multidisciplinary
H. Liu, S. Li, X. Huang, W. Chen, M. Xu, Y. Ren, R. Zhang, Z. Miao, J. . Zhu
Summary: This study converts three-dimensional channel-enriched biomass into a novel N/O co-doped 2D arcuate carbon nanosheets cathode, which achieves high energy-power zinc-ion hybrid supercapacitors (ZIHSCs) by optimizing the hierarchical porosity and ultrahigh surface area. It overcomes the obstacles of low capacity and energy density in carbon cathodes.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Analytical
Liping Feng, Yunzhen Chang, Hua Song, Wenjing Hou, Yanping Li, Yun Zhao, Yaoming Xiao, Gaoyi Han
Summary: By introducing fast pseudo-capacitance through thiourea doping, a N, S co-doped porous carbon material with high specific surface area and wide pore distribution is prepared, showing excellent electrochemical performance including good rate capability and cycling stability.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Himanshu Gupta, Yogita Dahiya, Hem Kanwar Rathore, Kamlendra Awasthi, Manoj Kumar, Debasish Sarkar
Summary: Zinc ion hybrid supercapacitors (ZIHSCs) have strong potential as next-generation energy storage systems due to their high energy density, high power output, and long cycle life. The key to constructing a high-performance ZIHSC is coupling a high-capacity, cost-effective, and safe cathode material with a zinc anode. In this study, S, N co-doped porous carbon nanocubes (S, N-CNCs) were demonstrated to be an excellent cathode material for a ZIHSC with high energy density and cycle life.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Feng Wei, Hanfang Zhang, Xianghua Hui, Yaohui Lv, Songlin Ran, Xinghui Liu
Summary: In this study, an aqueous zinc ion hybrid capacitor with an N-doped porous carbon nanosheet cathode was designed, showing excellent ions storage performance and cycle stability.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Feng Wei, Xiaojun He, Hanfang Zhang, Zide Liu, Nan Xiao, Jieshan Qiu
JOURNAL OF POWER SOURCES
(2019)
Article
Nanoscience & Nanotechnology
Feng Wei, Xiaojun He, Lianbo Ma, Hanfang Zhang, Nan Xiao, Jieshan Qiu
NANO-MICRO LETTERS
(2020)
Article
Materials Science, Multidisciplinary
Jiaoling Zheng, Feng Wei, Yaohui Lv, Weigang Zhang, Kailian Sun
Summary: 3DHCs are 3D honeycomb-like carbons constructed by interconnected carbon nanosheets, presenting high specific surface area and excellent rate capability. When used as electrode for supercapacitor, 3DHC displays good capacitance performance and high energy density.
Article
Materials Science, Multidisciplinary
Jinglong Zhuang, Feng Wei, Hang Zou, Jianfeng Wang, Mengcheng Han
Summary: In this study, an oxygen-rich lotus-shaped porous carbon (OLPC) cathode was synthesized for high performance zinc ion hybrid capacitors (ZHCs) by using phenanthrene as carbon precursor and potassium oxalate activation. The OLPC cathode displayed superior areal capacity, rate capability, energy density, and long-term life.
Review
Chemistry, Multidisciplinary
Meng-Cheng Han, Ming-ci Zou, Ting-Feng Yi, Feng Wei
Summary: This review comprehensively summarizes the recent advances in reactions mechanisms, synthesis methods, and strategies for performance improvement of ZnCo2O4 anode materials. ZnCo2O4 has gained wide research attention due to its high theoretical specific capacity, low toxicity, and stable chemical properties. However, its application as an anode material is hindered by poor Li+ ion conductivity, low electronic conductivity, and limited stability of electrolytes at high potentials. Recent studies have shown that optimizing the micro/nano structure, modifying with carbonaceous materials, incorporating with metal oxides, and constructing a binder-free structure on conductive substrate are effective approaches to address these issues.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Chemistry, Physical
Feng Wei, Hanfang Zhang, Xianghua Hui, Yaohui Lv, Songlin Ran, Xinghui Liu
Summary: In this study, an aqueous zinc ion hybrid capacitor with an N-doped porous carbon nanosheet cathode was designed, showing excellent ions storage performance and cycle stability.
JOURNAL OF POWER SOURCES
(2023)
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)