Article
Chemistry, Applied
Elodie Blanco, J. Noe Diaz de Leon, Jose Luis Garcia-Fierro, Nestor Escalona
Summary: The experiments showed that the enrichment of Re on the surface may improve the dispersion of Re and enhance the reaction rate of bimetallic catalysts. XPS results indicated a synergistic effect between Mo and Re carbides, promoting the demethylation of guaiacol to catechol.
Article
Polymer Science
Andrea Loncarevic, Karla Ostojic, Inga Urlic, Anamarija Rogina
Summary: The aim of this study was to prepare bimetallic chitosan microgels and investigate the effects of metal-ion type and content on the properties of the microgels. The microgels were produced using electrohydrodynamic atomization process, and their size and morphology were influenced by the quantity of Cu2+ ions. The bimetallic chitosan microgels showed good stability during enzymatic degradation and exhibited good cytocompatibility.
Article
Electrochemistry
Mengtao Sun, Likun Wang, Guohua Shi, Qiying Liu, Gang Xu, Yong Liu, Gaorong Han
Summary: Dual-band electrochromic smart windows have the potential to regulate light and reduce building energy consumption. Niobium-tungsten bimetallic oxides show excellent dual-band EC potential in the electrochemical field, and NWO films synthesized using a hydrothermal technique demonstrate impressive performance.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Inorganic & Nuclear
Xianhao Chen, Fuhe Le, Zhenjiang Lu, Dehuo Zhou, Haibin Yao, Wei Jia
Summary: In this study, ultrafine Co3Mo3N-Mo2C/CNFs composite material with a nano size was prepared by electrostatic spinning and pyrolysis treatment. The synergistic interactions between Mo2C and Co3Mo3N significantly adjusted the electronic structure of Mo2C and enabled fast charge transfer, leading to superior electrocatalytic performance for hydrogen evolution reaction in water. Specifically, the as-obtained Co3Mo3N-Mo2C/CNFs exhibited a low overpotential of only 76 mV to achieve a current density of 10 mA cm(-2) and showed excellent durability for 200 hours without obvious degradation in acidic media. This research provides important findings in the study of transition metal nitrides as electrocatalysts.
INORGANIC CHEMISTRY
(2023)
Article
Green & Sustainable Science & Technology
S. Saranya, S. Dhanapandian, S. Suthakaran, Sankaranarayanan Nagarajan, N. Krishnakumar, S. Dinesh, A. Muthukrishnaraj, Ayyar Manikandan
Summary: Evolving efficient electrochemically active nanostructures from earth-abundant transition metals, such as nickel (Ni) and manganese (Mn), has gained significant interest for energy storage applications. In this study, Ni-Mn diselenide nanoparticles with spherical morphology were successfully synthesized using a simple hydrothermal method. The synthesized NiMnSe2 nanoparticles demonstrated a cubic phase and excellent electrochemical behavior, with a specific capacitance of 1490F/g.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Chemistry, Multidisciplinary
Zhiquan He, Li Yao, Wei Guo, Nana Sun, Fadi Wang, Yuhang Wang, Rongming Wang, Fengping Wang
Summary: MXenes are promising high-rate pseudocapacitive materials due to their metallic-like conductivity and transition metal oxide-like surfaces. A mild method of producing highly stable bimetallic solid-solution MXene Ti2VC2 using a solution of potassium fluoride and hydrochloric acid is reported. The resulting Ti2VC2 films show superior electrochemical properties compared to Ti3C2, delivering up to 2000 F cm-3 capacitance and retaining over 90% of the initial capacitance after 20,000 cycles.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Energy & Fuels
Xiaoyuan Liang, Hang He, Xijia Yang, Wei Lu, Liying Wang, Xuesong Li
Summary: A fully flexible, lightweight, and high-performance supercapacitor was designed by growing NiCo2S4 nanowire on activated carbon cloth using a simple two-step hydrothermal method. The electrode exhibited high area capacitance and good capacitance retention after numerous cycles. Additionally, a flexible asymmetric supercapacitor using the designed electrode and cathode displayed high specific capacitance, energy density, and power density, along with good capacitance retention, indicating the feasibility for wearable energy storage devices.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Energy & Fuels
Rui Yang Hu, Li Yuan Liu, Jia Hao He, Yang Zhou, Shi Bo Wu, Mao Xiang Zheng, Muslum Demir, Pian Pian Ma
Summary: Recent studies have shown that bimetallic carbide, due to its abundant active sites, high conductivity, and electrochemical stability, is a promising electrode material for supercapacitors. By combining bimetallic carbides with other advanced materials such as graphene, porous carbon, or carbon nanotubes (CNTs), the electrochemical properties of the electrode can be greatly enhanced. In this study, Fe3Mo3C/Mo2C@CNTs composite material was synthesized for the first time using hydrothermal and high-temperature carbonization methods. The Fe3Mo3C/Mo2C@CNTs nanoparticles carbonized at 800℃ exhibited the best electrochemical performance, with a specific capacitance of 196.3 F g-1 at a scanning rate of 10 mV s-1 (202.3 F g-1 at 1 A g-1). An asymmetric supercapacitor assembled with Fe3Mo3C/Mo2C@CNTs and NiCo2O4 electrode achieved an energy density of 39.9 Wh Kg-1 at a power density of 1800 W Kg-1, with a capacitance retention rate of 73.9% after 4000 cycles. Overall, Fe3Mo3C/Mo2C@CNTs shows significant potential as a negative electrode material for supercapacitors in the field of electrochemical energy storage.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
M. Sangeetha Vidhya, R. Yuvakkumar, G. Ravi
Summary: In this work, bimetallic ZnSe-CoSe2 electrode material was designed and prepared for supercapacitor applications. The material showed high capacitance, stability, and long cycle life. It also exhibited high energy density at high power density and effectively lit up an LED.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Safiyah Arif Hejazi, Zoya Zaheer, Samia A. Kosa
Summary: Cetyltrimethylammonium bromide (CTAB) and chitosan capped iridium-silver nanoparticles (Ir-AgNPs) were synthesized using seedless co-reduction method. CTAB and chitosan capped Ir-AgNPs exhibited surface Plasmon resonance (SPR) bands at 420 nm and 430 nm, respectively. Chitosan capped Ir-AgNPs showed faster reduction rate compared to CTAB capped Ir-AgNPs with NaBH4. The nanoparticles showed good stability and specific surface morphology, size, and pore structure.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Materials Science, Multidisciplinary
Elanchezhian Sangeetha, Richa Sharma, Abathodharanan Narayanan, Sudha Varadaraj, Raghavachari Dhamodharan
Summary: Tough gels and foams based on chitosan were prepared by hydrothermal reaction, and their structures and properties were characterized. The results showed that CHTAUR had macroporous structures and high porosity, which could be transformed into tough gels through water absorption. The foams exhibited good compressive strength and supported cell growth, making them potential materials for biodegradable packaging and tissue engineering applications.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Engineering, Chemical
Xiaojun Zhao, Lijuan Liu, Weiting Yang, Qinhe Pan
Summary: The composite precursors of ZIF and chitosan were designed and synthesized to prepare a series of efficient carbon-based catalysts for oxygen reduction by pyrolysis, among which ZnCo-ZIF@CS-3-800 showed the best catalytic performance. It exhibited similar electrochemical properties to Pt/C, with excellent stability and durability, showing promising potential for application in fuel cells.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Biochemistry & Molecular Biology
Gozde Yurdabak Karaca, Hilmi Kaan Kaya, Filiz Kuralay, Aysegul Uygun Oksuz
Summary: The study successfully prepared chitosan-functionalized gold-nickel wire nanomotors for the recognition and detection of dsDNA, showing promise for bioapplications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Biochemistry & Molecular Biology
Panghu Zhou, Zunen Xia, Chao Qi, Meng He, Tengbo Yu, Lei Shi
Summary: Chitosan/Ag nanocomposite sponges exhibit good mechanical properties, suitable water vapor transmission, and excellent antibacterial activity, making them potentially ideal for wound dressings.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Engineering, Environmental
Ximing Deng, Sarah Imhanria, Yan Sun, Miao Zhang, Yangshuai Cheng, Wei Wang
Summary: In this study, a high-performance ORR electrocatalyst (MoFeCx-NC) composed of nitrogen-doped carbon armored by ferro-molybdenum binary carbides was developed. The physical characterization revealed that MoFeCx-NC is composed of amorphous bimetallic carbides and N-doped carbon. Electrochemical tests showed that MoFeCx-NC has a higher onset potential and half-wave potential, comparable to traditional Pt/C catalysts. Furthermore, the MoFeCx-NC assembled battery exhibited excellent peak power density and discharge voltage, indicating its potential as a future ORR electrocatalyst.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Electrochemistry
Xicheng Gao, Weili Wang, Jianqiang Bi, Yafei Chen, Xuxia Hao, Xiaoning Sun, Jingde Zhang
ELECTROCHIMICA ACTA
(2019)
Article
Chemistry, Physical
Mingzhe Leng, Jianqiang Bi, Weili Wang, Zheng Xing, Weikang Yan, Xicheng Gao, Jingyu Wang, Rui Liu
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Chemistry, Physical
Xuxia Hao, Jianqiang Bi, Weili Wang, Weikang Yan, Xicheng Gao, Xiaoning Sun, Rui Liu
JOURNAL OF POWER SOURCES
(2020)
Article
Chemistry, Physical
Xicheng Gao, Jianqiang Bi, Weili Wang, Haozhe Liu, Yafei Chen, Xuxia Hao, Xiaoning Sun, Rui Liu
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Materials Science, Ceramics
Weikang Yan, Jianqiang Bi, Weili Wang, Zheng Xing, Rui Liu, Xuxia Hao, Xicheng Gao, Mingzhe Leng
Summary: Core-shell hierarchical structured composites, particularly those with rationally structural components and controllable morphology, have shown great advantages in enhancing electrochemical properties for energy storage devices. In this study, MnO2@NiCo2O4@Ti3SiC2/CC core-shell hierarchical structured composites were successfully synthesized and demonstrated improved specific capacitance and cycling stability. These composites have the potential to be used as electrode materials with exceptional electrochemical properties for supercapacitors, with high energy density and superior cycling stability.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Mingzhe Leng, Jianqiang Bi, Weili Wang, Zheng Xing, Weikang Yan, Xicheng Gao, Jingyu Wang, Rui Liu
Summary: An innovative and convenient method has been developed to stabilize the surface of O3-type NaNi0.45Mn0.3Ti0.2Zr0.05O2 composite electrode using an ultrathin MgO film. The MgO-coated cathode shows superior surface stability and capacity retention under high rate conditions, with three main mechanisms discovered to enhance electrochemical performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Mingzhe Leng, Jianqiang Bi, Zheng Xing, Weili Wang, Xicheng Gao, Jingyu Wang, Zhao Qian
Summary: The study investigates a new family of layered transition metal oxides in sodium-ion batteries, demonstrating high specific capacity, superior rate performance, and high coulombic efficiency. In-depth understanding of the material's intrinsic structure and electrochemical performance could potentially offer new insights for material design and development.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Yafei Chen, Simona Spinelli, Zhanjun Gu, Zhengwei Pan
Summary: This study presents a multi-band persistent probe, CaTiO3:Pr3+, that can be charged by weak visible light and emit red, near-infrared, and short-wave infrared persistent luminescence simultaneously. This probe enables bioimaging in all three bioimaging windows using one probe and can be charged by low-intensity light sources, maintaining emission intensity and imaging quality over an unlimited imaging time. These unique features are expected to impact persistent luminescence-based bioimaging and optical bioimaging in general.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Electrochemistry
Xicheng Gao, Jianqiang Bi, Jian Gao, Linjie Meng, Lulin Xie, Chen Liu
Summary: This study improves the electrochemical performance of nickel ferrite in supercapacitors by partial sulfur doping, which combines the advantages of oxides and sulfides.
ELECTROCHIMICA ACTA
(2022)
Article
Materials Science, Multidisciplinary
Dangli Gao, Jie Gao, Feng Gao, Qingqing Kuang, Yong Pan, Yafei Chen, Zhengwei Pan
Summary: Traditional luminescent inks used in anti-counterfeiting applications are usually single-mode and easily counterfeited. This study introduces the use of multi-mode persistent phosphors to achieve quintuple-mode, multi-colour dynamic anti-counterfeiting, potentially leading to more sophisticated optical anti-counterfeiting technology.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Inorganic & Nuclear
Shao Yan, Yanjie Liang, Yafei Chen, Jingwei Liu, Dongxun Chen, Zhengwei Pan
Summary: This study reports a Pr3+-doped UVC emissive persistent phosphor, Lu2SiO5:Pr3+, exhibiting intense UVC persistent luminescence peaking at 270 nm with a long persistence time of over 12 hours. The UVC persistent luminescence of this phosphor can be clearly monitored and imaged in bright environments, including direct sunlight and indoor light, using a corona camera.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Xianli Wang, Yafei Chen, Peter A. Kner, Zhengwei Pan
Summary: This study demonstrates the realization of Gd3+ persistent luminescence in the NB-UVB spectral region through efficient energy transfer from sensitizers, leading to the discovery of new NB-UVB and UV-B persistent phosphors. These NB-UVB persistent phosphors may serve as self-sustained radiation sources for dermatological therapy.
DALTON TRANSACTIONS
(2021)
Proceedings Paper
Materials Science, Ceramics
Guandong Liang, Jianqiang Bi, Guoxun Sun, Yafei Chen, Weili Wang
ADVANCES IN POWDER AND CERAMIC MATERIALS SCIENCE
(2020)
Article
Electrochemistry
Jingyu Wang, Jianqiang Bi, Weili Wang, Zheng Xing, Yunjun Bai, Mingzhe Leng, Xicheng Gao
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)