Article
Chemistry, Inorganic & Nuclear
Dong Hyun Lee, Juyoung Baek, Dong Hwan Kim, Jong Wook Roh, Jeongmin Kim, Damin Lee
Summary: Transition metal-based binary and ternary compound arrays were grown directly on a porous Ni foam substrate using a one-step hydrothermal method. The ternary electrode with Ni, Cu, and Zn ions showed a larger surface area and higher entropy than the binary compounds, leading to a shorter diffusion path for electrolyte ions and improved charge transfer. The optimized NixCuyZnz(CO3)(OH)(2) compound exhibited a higher specific capacity and cycling stability than the binary electrode. An asymmetric supercapacitor fabricated with this compound showed high energy density and electrical properties in an illuminated LED device.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Analytical
Dorcas Zide, Cecil Felix, Tobie Oosthuysen, Bernard Jan Bladergroen
Summary: In this study, beta-Ni(OH)(2) was used as the starting material and partially substituted with Mg2+ and Mn2+ to optimize the performance of the positive electrode materials for nickel-iron batteries. The resulting Ni0.95Mg0.05(OH)(2) and Ni0.9Mn0.1(OH)(2) compositions showed promising electrochemical activities, with improved cycle life and discharge capacities compared to the undoped Ni(OH)(2) electrode.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
Qiang Hu, Yuru Chai, Xinyi Zhou, Shixiang Ding, Dunmin Lin, Na Jiang, Yu Huo, Qiaoji Zheng, Jingxin Zhao, Guoxing Qu
Summary: In this study, porous Ni/Co hydroxide nanosheets were synthesized using an electrochemical anion-exchanged method, with the application of an electric field in alkaline solution to accelerate nucleation and improve charge and discharge performance. The optimized material showed a high specific capacitance and energy density, along with improved power density and cyclic stability, demonstrating the potential for use in low-cost, high-performance supercapacitors.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Yana Liu, Juanzhe Yu, Min Jiang, Jie Hou, Yunfeng Zhu, Jiguang Zhang, Zhixin Ba, Liquan Li
Summary: A series of flower-like Ni-Fe layered double hydroxides (LDHs) were successfully synthesized and used as cathode materials for nickel-metal hydride batteries (Ni-MH batteries). The 4Ni-Fe LDH electrode displayed the highest high-rate discharge property and the most excellent cycling performance. The improvement can be attributed to the formation of LDHs, as well as their unique morphology and enlarged interlayer spacing.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Chemistry, Physical
Nilimapriyadarsini Swain, Balasubramaniam Saravanakumar, Manab Kundu, Lukas Schmidt-Mende, Ananthakumar Ramadoss
Summary: Supercapacitors are considered outstanding candidates among various energy storage devices due to their long-term cycle life, high power density, and minimal safety concerns. To overcome the lower energy density limitation, extensive research efforts have been devoted to exploring various nanostructured three-dimensional electrode materials and developing template-assisted 3D architecture electrodes.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Energy & Fuels
Haonan Chen, Xiping Lei, Ting Yu, Jing Liu, Kai Fan
Summary: By introducing turtle shell derived biomass activated carbon with hierarchical porous structure as a substrate, the electrical conductivity and interface contact of Ni(OH)2 can be improved, and the transport of electrolyte ions can be accelerated. The stacking during Ni(OH)2 growth is attenuated, exposing more active sites, resulting in faster and more complete redox reaction. Therefore, Ni(OH)2/TSHC-5 shows significantly higher specific capacitance and cycling performance compared to Ni(OH)2, making it a promising electrode material for energy storage and energy conversion applications.
Article
Chemistry, Physical
Runze Wu, Jiale Sun, Xingyi Ma, Enhui Bao, Xuming Du, Chunju Xu, Huiyu Chen
Summary: In this study, mesoporous MgCo2O4 nanoflakes and nanowires were successfully synthesized and demonstrated battery-like features for potential applications as cathode materials in advanced supercapacitors. An asymmetric supercapacitor assembled with MgCo2O4 as cathode and AC as anode showed excellent electrochemical performance with high capacity, cycling stability, and energy density. The simple and cost-effective synthesis method with the ability to tune the shape of MgCo2O4 makes it a promising candidate for the next-generation supercapacitors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Materials Science, Multidisciplinary
Sonali Verma, Sandeep Arya, Vinay Gupta, Sarika Mahajan, Hidemitsu Furukawa, Ajit Khosla
Summary: The increasing environmental problems and energy demands have stimulated research into safe and efficient energy sources. Supercapacitors have attracted great interest due to their high energy storage capacity.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Multidisciplinary
Xufeng Song, Tianen Shui, Wanying Zhang, Keru Song, Xuesong Shan, Dongyu Zhao
Summary: This study presented a nickel-containing nitrogen-doped porous carbon material, which showed significantly increased specific surface area and excellent specific capacitance after a simple high-temperature treatment. The material has great potential for applications in the field of supercapacitors.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Willian G. Nunes, Andre N. Miranda, Bruno Freitas, Rafael Vicentini, Aline C. Oliveira, Gustavo Doubek, Renato G. Freitas, Leonardo M. Da Silva, Hudson Zanin
Summary: The study investigates charge-storage phenomenon in an electrode composed of highly defective nickel oxide nanostructures supported on carbon nanofibers immersed in an Li+-based aqueous electrolyte using Raman spectroscopy under dynamic polarization conditions. The formation of Li2SO4∙H2O during discharge and the phase transformation of NiO to NiOOH were verified. The electrode material showed outstanding stability with 98% coulombic efficiency after 10,000 charge-discharge cycles, attributed to a synergism between CNFs and NiO ensuring rapid electron transport. DFT simulation elucidated that compressive stress and Ni-site displacement promote NiO/Ni(OH)2/NiOOH transition.
Article
Chemistry, Multidisciplinary
Mustafa Aghazadeh, Hamzeh Forati Rad, Ramin Cheraghali
Summary: An outstanding nano-structured composite electrode was fabricated by co-depositing Co(OH)(2) nanoplates and porous reduced GO nanosheets onto Ni foam. The resulting composite electrode exhibited a high surface area, large pore size, and improved energy storage and power capabilities, making it a promising candidate for supercapacitor applications.
Article
Materials Science, Multidisciplinary
Hao Lei, Yang Pan, Rong-Gui Guo, Jing Zhang, Xue Han, Li-Min Yu, Wen-Quan Jiang
Summary: Nickel hydroxide is widely used as cathode materials in nickel-metal secondary batteries. In this study, Mn-substituted nickel hydroxide samples with a special alpha/beta mixed phase structure were synthesized. The physical properties and electrochemical performances of the samples were characterized. The results showed that the Mn-substituted samples with a alpha/beta mixed phase structure exhibited higher discharge capacity and maintained high structure stability.
Article
Chemistry, Multidisciplinary
Abdul Sammed Khan, Lujun Pan, Amjad Farid, Muhammad Javid, Hui Huang, Yongpeng Zhao
Summary: The study utilizes functionalized three-dimensional carbon nanocoils on nickel foam as the substrate for fabricating faradaic nickel cobaltite (NiCo2O4) electrode, demonstrating high specific capacitance and excellent cyclic stability.
Article
Energy & Fuels
Wei Li, Yuli Zhang, Longjia Yuan, Kaibo Tian, Hongwei Yue, Tingting Li, Pinjiang Li, Lijun Wu, Yuanhao Gao, Xiaojie Lou
Summary: In this study, a three-dimensional Ni3N mesh with a mesoporous structure was constructed as the electrode material for hybrid supercapacitors, improving its energy storage performance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Electrical & Electronic
Sachin B. Abitkar, Suprimkumar D. Dhas, N. P. Jadhav, Pravin R. Jadhav, Parvejha S. Maldar, C. E. Patil, Annasaheb V. Moholkar
Summary: Hierarchical mesoporous nickel hydroxide (alpha-Ni(OH)(2)) nanoparticles were prepared using an inexpensive and green co-precipitation technique. The alpha-Ni(OH)(2)-activated carbon (AC) composite electrode showed higher specific capacitance and better capacitance retention compared to pure alpha-Ni(OH)(2). These composite materials have potential for use in next generation electrochemical supercapacitors.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Biochemistry & Molecular Biology
Xiaolong Ma, Dandan Zhao, Jinjin Qian, Zichuan Ma, Jiansheng Cui
Summary: In this study, a novel approach for utilizing volatile organic compounds (VOCs) was established using coupled oxidation and reduction reactions. The results showed that increasing the temperature and reducing the flow rate enhanced the removal of o-xylene and the reduction of hematite.
Article
Engineering, Chemical
Hao Cai, Dongshuo Zhang, Xiaolong Ma, Zichuan Ma
Summary: In this study, waste pine-attached zinc oxide composites were synthesized and used for the photocatalytic degradation of metronidazole. The composites showed improved photocatalytic activity due to the increased surface area and reduced electronic band gap. Hydroxyl radicals played a dominant role in the degradation process, and the composites exhibited stability and high photocatalytic activity over a wide pH range.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Dandan Zhao, Yuheng Liu, Xiaolong Ma, Jinjin Qian, Zichuan Ma
Summary: Efficient removal of cumene from gaseous streams and recovery of its derivatives were achieved using a MCM-41-supported sulfuric acid (SSA/MCM-41) adsorbent. The process conditions significantly influenced the removal performance, and the spent SSA/MCM-41 could be regenerated for cyclic reuse. Two recoverable adsorbed products were successfully separated and identified.
Article
Chemistry, Physical
Dandan Zhao, Mengze Ma, Jinjin Qian, Yaxu Wang, Zichuan Ma, Xiaolong Ma
Summary: The effects of solvent type on the performance of silica supported sulfuric acid (SSA) adsorbents for removing phenyl VOCs were investigated. The results showed that adsorbents prepared using ethyl acetate solvent exhibited better performance.
Article
Chemistry, Multidisciplinary
Yanhui Zheng, Xifeng Hou, Siqi Lv, Zichuan Ma, Xiaolong Ma
Summary: In this study, beta-cyclodextrin-modified reduced graphene oxide aerogels (beta-CD-rGOAs) were synthesized and used to remove hexamethyldisiloxane from biogas. Characterizations showed that beta-CD was grafted onto the surface of rGOAs as a cross-linking modifier, forming a three-dimensional, cross-linked porous structure. The maximum breakthrough adsorption capacity of L2 on beta-CD-rGOA was 111.8 mg g(-1) at 273 K, and the material could be regenerated by annealing at 80 degrees C, making it promising for L2 removal from biogas.
Article
Chemistry, Physical
Xing Zhou, Huilong Jin, Zichuan Ma, Na Li, Guang Li, Tong Zhang, Pei Lu, Xuzhong Gong
Summary: Carbon-assisted water electrolysis using carbon oxidation reaction reduces energy consumption for hydrogen production. However, mass transfer issues limit its efficiency. This study proposes a biochar sacrificial anode to solve the mass transfer problem, improving both activity and stability. The biochar anode produces less oxygen and has lower potential than a Pt anode, providing a sustainable approach for green hydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Green & Sustainable Science & Technology
Xifeng Hou, Yanhui Zheng, Siqi Lv, Zichuan Ma, Xiaolong Ma
Summary: In this study, reduced graphene oxide aerogels (rGOAs) with excellent adsorption performance were successfully synthesized using citric acid-assisted hydrothermal reduction and self-assembly techniques. The rGOAs demonstrated efficient removal of methyl siloxane and exhibited promising recyclability and reusability.
Article
Chemistry, Physical
Dandan Zhao, Jinjin Qian, Yaxu Wang, Zichuan Ma, Xiaolong Ma
Summary: This study investigated the removal of anisole, a representative pollutant, using an MCM-41-supported sulfuric acid (SSA/MCM-41) adsorbent. The results showed that the SSA/MCM-41 adsorbent had a reactive temperature range of 110-140 degrees C, with a removal ratio of anisole greater than 95%. The analysis of process conditions indicated that reducing flow rate increased the theoretical breakthrough time and adsorption capacity, while reducing the inlet concentration or raising the bed height had a slightly decreasing trend in adsorption capacity. The results obtained in this study will contribute to the application of the gas-solid adsorption approach in VOC treatment.
Article
Chemistry, Multidisciplinary
Hao Cai, Tianci Zhao, Zichuan Ma
Summary: Nanoscale magnetic spinel ferrite composites were prepared using a facile impregnation and pretreatment method. The composites were characterized using various techniques, such as XRD, FTIR, SEM, BET, XPS, and VSM. The results showed that the MFe2O4@PC composites exhibited good photocatalytic and adsorption performance for the degradation of MNZ in wastewater.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Xiaolong Ma, Shuqi Li, He Ren, Yin Zhang, Zichuan Ma
Summary: This study proposes an adhesion approach with a mixed suspension containing egg white to prepare a hybrid material of Mg/Al-layered double hydroxide and almond shell biochar. The hybrid material shows higher phosphate adsorption capacity compared to the pure Mg/Al-layered double hydroxide. The study provides an efficient approach to improve the adsorption performance of hard biochar in wastewater treatment.
Article
Biochemistry & Molecular Biology
Xing Zhou, Huilong Jin, Na Li, Xiaolong Ma, Zichuan Ma, Pei Lu, Xiaomeng Yao, Shenna Chen
Summary: Fe-based chemical looping gasification is a clean biomass technology that reduces CO2 emissions and has the potential for self-sustaining operation. This paper proposes a novel process combining Fe-based chemical looping and biomass pyrolysis. The process produces bio-oil, biochar, high-purity hydrogen, and carbon dioxide from rice straw, with high efficiency and CO2 concentration. Compared to biomass direct chemical looping hydrogen generation technology, this new process enhances efficiency.
Article
Chemistry, Physical
Siqi Lv, Xiaolong Ma, Qingling Fu, Yanhui Zheng, Zichuan Ma
Summary: The development of activated porous carbon (APC) with high adsorption capacity for removing volatile methyl siloxane (VMS) has been studied. A high-specific-surface-area APC material with a large porous texture was successfully developed using coconut shell waste and NaOH as the activating agent. The APC material showed remarkable adsorption capacity for hexamethyldisiloxane (L2) and could be easily recycled for sustained adsorption performance even after multiple cycles.
Article
Biochemistry & Molecular Biology
Siqi Lv, Xifeng Hou, Yanhui Zheng, Zichuan Ma
Summary: In this study, Fe3O4-urea-modified reduced graphene-oxide aerogels (Fe3O4-urea-rGOAs) were fabricated using industrial-grade graphene oxide as the raw material. The Fe3O4-urea-rGOAs showed high adsorption capacity for the VMS pollutant and could be easily regenerated, making them promising adsorbents for removing VMS in biogas.
Article
Biochemistry & Molecular Biology
Siqi Lv, Yingrun Wang, Yanhui Zheng, Zichuan Ma
Summary: The hydrophobic APTMS@APC adsorbents were prepared for efficient removal of volatile methyl siloxanes (VMS). The modified APC showed enhanced texture properties and increased adsorption capacity for model pollutant hexamethyldisiloxane. After multiple cycles, the APTMS@APC demonstrated excellent cycling performance, indicating its significance in removing VMS.
Article
Engineering, Environmental
Mengze Ma, Kaiyin Gao, Dandan Zhao, Xiaolong Ma, Zichuan Ma
Summary: Reaction-type adsorption shows promise in the removal of aromatic volatile organic compounds, with SSA/MCM-41 demonstrating potential in removing o-xylene. The dose-response model was found to be the best-fit model for the adsorption process, with a maximum breakthrough adsorption capacity of 545.60 mg.g(-1) determined through experiments.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.