Article
Chemistry, Physical
Lan Xiao, Yibin Wang, Tingzheng Fu, Qiusen Liu, Fei Guo, Yingjie Zhang, Mian Li, Xiangjie Bo, Tingting Liu
Summary: In this study, a low-cost method for large-scale and rapid synthesis of three-dimensional hierarchically porous structures composed of ultrafine FeCo nanoparticles embedded in boron/nitrogen-codoped two-dimensional porous carbon nanosheets was developed for the first time. The optimal sample exhibited excellent water splitting performance, surpassing commercial catalysts, and showcased outstanding stability. This study provides an efficient strategy for the synthesis of two-dimensional porous carbon nanosheets without the need for templates, surfactants, or expensive precursors.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Review
Materials Science, Multidisciplinary
Ranran Liu, Lanlan Hou, Guichu Yue, Huaike Li, Jiesan Zhang, Jing Liu, Beibei Miao, Nu Wang, Jie Bai, Zhimin Cui, Tianxi Liu, Yong Zhao
Summary: This review provides an overview of the design strategies, preparation methods, physical properties, and applications of electrospun hierarchical porous nanofibers, highlighting the challenges and potential opportunities in the future.
ADVANCED FIBER MATERIALS
(2022)
Article
Multidisciplinary Sciences
Xuan Wei, Chia-Ching Lin, Chuanwan Wu, Nadeem Qaiser, Yichen Cai, Ang-Yu Lu, Kai Qi, Jui-Han Fu, Yu-Hsiang Chiang, Zheng Yang, Lianhui Ding, Ola S. Ali, Wei Xu, Wenli Zhang, Mohamed Ben Hassine, Jing Kong, Han-Yi Chen, Vincent Tung
Summary: This study reports a new manufacturing method for transforming molybdenum disulfide nanosheets into a three-dimensional foam with hierarchical structure, providing an interpenetrating network for efficient charge transport and rapid ion diffusion, thus improving its electrochemical performance.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Shulin Li, Yang Xiao, Han Yan, Yuting Yang, Yuyang Tian, Xiaofei Jing, Guangshan Zhu
Summary: A novel porous aromatic framework (PAF-99) was successfully synthesized, and two strategies, in situ preparation and post-synthesis, were applied to introduce uniform platinum nanoparticles into PAF-99. The obtained platinum electrocatalysts (Pt-PAF-99 and Pt@PAF-99) showed excellent and distinct performances towards the hydrogen evolution reaction.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Jingxia Gao, Luyuan Wang, Ping Zhu, Xinsheng Zhao, Guoxiang Wang, Sa Liu
Summary: The FeCo@NC catalyst, designed by template-assisted method, exhibits superior bifunctional oxygen electrocatalytic activities and high power density in Zn-air batteries, with excellent rechargeable performance and cycling stability, showing promising application potential in solid-state ZAB.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Chenming Feng, Yi Lu, Yixuan Liu, Xiaoyu Yang, Ge Tian
Summary: Hierarchically porous graphene with macro-mesopores was fabricated via two-step calcination and showed excellent lithium storage performance.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Agricultural Engineering
Zihao Ma, Ying Han, Junjun Qi, Zheng Qu, Xing Wang
Summary: Efficient adsorbents based on lignin-derived graphene flower-like carbon nanosheets have been developed for capturing and adsorbing radioactive iodine in air and aqueous solutions during nuclear disposal and accidents. By adjusting the activation methods, different pore size structures in the carbon nanosheets were achieved, resulting in excellent iodine adsorption capacities in various environments.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Materials Science, Multidisciplinary
Hong-Juan Lv, Qadeer Ul Hassan, Shu-Cong Fan, Ying Wang, Yurong An, Gang-Qiang Zhu, Yu-Cheng Jiang, Wen-Yu Yuan, Quan-Guo Zhai
Summary: A hierarchically porous titanium-MOF (hMUV-10) anchored with ultrafine Pd nanoparticles was designed via a one-step in-situ water-etching strategy. The optimized Pd/hMUV-10 demonstrated an ultrahigh CO production rate and negligible activity decay during continuous cycling measurement.
SCIENCE CHINA-MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shanshan Guo, Baomin Wang, Daniel Wolf, Axel Lubk, Weixing Xia, Mingkun Wang, Yao Xiao, Junfeng Cui, Dhanapal Pravarthana, Zehua Dou, Karin Leistner, Run-Wei Li, Ruben Huehne, Kornelius Nielsch
Summary: This study successfully achieved hierarchical La0.7Sr0.3MnO3 thin films with well-defined crystallographic orientations, which significantly broadened the temperature range of the magnetic transition and extended the working window of colossal magnetoresistance. The findings suggest a promising approach for altering magnetic transitions and enhancing phase-transition-related effects in functional oxides.
Article
Engineering, Chemical
Jun Yan, Wei Xiao, Lanfen Chen, Zefeng Wu, Jiefeng Gao, Huaiguo Xue
Summary: A highly efficient solar water evaporation technology has been developed using a porous carbon nanofiber membrane with high photothermal conversion efficiency, providing a stable production of fresh water under sunlight.
Article
Energy & Fuels
Xiaoning Tang, Shu Xia, Qiuyang Luo, Junnan Liu, Haifeng Gong, Yaqian Deng, Xiaohu Chen, Jiaojing Shao
Summary: A hierarchically porous graphene aerogel with abundant oxygenated groups and hand-tearing bread-like macromorphology has been successfully achieved using a sacrificial MnO2 template approach. The resulting aerogel exhibits improved wettability and pseudocapacitance, making it a promising candidate for supercapacitor applications.
Article
Chemistry, Physical
Yihuan Yu, Pengdong Liu, Meiling Dou, Jin Niu, Zhengping Zhang, Feng Wang
Summary: In this study, a rational porous structure was fabricated to support ruthenium species as efficient cathodes for the hydrogen evolution reaction. This ordered hierarchical porous electrode exhibited superior catalytic activity with a low overpotential compared to commercial RuO2/Ni mesh cathodes and Pt/C electrocatalysts. Additionally, the electrode showed more obvious advantages for HER catalysis at large current densities.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Tong Qian, Yunchun Huang, Mengdi Zhang, Zhengzheng Xia, Haiyan Liu, Lu Guan, Han Hu, Mingbo Wu
Summary: The hierarchically porous carbon frameworks produced by carbonizing petroleum asphalt with KHCO3 exhibit high specific surface area, enabling faster lithium storage rate and three-times higher capacitive performance compared to widely used activated carbon cathodes.
Article
Chemistry, Physical
Hongwei Zhang, Jiayi Li, Linqu Luo, Jie Zhao, Junyu He, Xiaoxian Zhao, Hao Liu, Yuanbin Qin, Fengyun Wang, Jianjun Song
Summary: This study successfully synthesized hierarchically porous Ti3C2Tx MXene decorated LFP@C composite, which can improve the diffusion performance and electronic conductivity of lithium-ion batteries, achieving high-rate capability and long cycling stability. The introduction of MXene sheets realized the formation of hierarchically porous structure and conductive network.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Xiaoyan Yuan, Aiming Sha, Shengyan Huang, Hui Zhao, Xu Chen, Yi Zhang, Shouwu Guo
Summary: BNNS-CNFs have lightweight and wide-band characteristics at low load content, making them suitable for high-efficiency electromagnetic wave absorption.
JOURNAL OF ALLOYS AND COMPOUNDS
(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)