Article
Chemistry, Physical
Zixu Shi, Yue Liu, Yuchen Zhang, Jun Sun, Jingxing Zheng, Chengzhen Wei, Weimin Du, Lin Liu, Cheng Cheng
Summary: This study presents the controllable design of NiCo2O4/MnCo2O4 yolk-shelled hollow sphere as electrode material, which exhibits a large specific capacitance and cycling durability. A solid-state asymmetric supercapacitor is also designed, achieving high energy density. Overall, this work highlights the importance of rational micro architecture in electrode materials for enhancing performance in energy storage applications.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Chao Li, Tiantian Zhao, Xiaojie Feng, Shijia Liu, Longbo Li, Ruhua Zha, Yu Zhang, Zhang Zhang
Summary: Researchers have significantly improved the electrochemical performance of hierarchical honeycomb-like manganese cobalt sulfide nanosheets, making them a promising cathode material for hybrid supercapacitors. The assembled HSC shows high energy density and long cycling lifespan, demonstrating practical prospects in energy storage systems.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Ruling Huang, Jiao Lin, Jiahui Zhou, Ersha Fan, Xixue Zhang, Renjie Chen, Feng Wu, Li Li
Summary: Hierarchical MnCo2O4 hollow microspheres with three porous shells have been fabricated as anode materials for potassium-ion batteries, showing enhanced rate performance and demonstrated substance transformation during charging/discharging processes using in situ X-ray diffraction strategy.
Article
Chemistry, Physical
Alei Dang, Yiting Sun, Chenglin Fang, Tiehu Li, Xin Liu, Yu Xia, Fei Ye, Amir Zada, Muhammad Khan
Summary: This paper focuses on the improvement of electrochemical performance of supercapacitors with high-energy storage by selective electrode materials and rational structural design. The Ti3C2/CNTs/MnCo2S4 composite electrodes were fabricated, which exhibited enhanced specific capacitance, high rate retention, and excellent cycling stability. These improved electrochemical performances were attributed to the synergistic effect of pseudocapative material of MnCo2S4, remarkable conductivity of Ti3C2 and CNTs, and the micro-/nano-porous structures constructed by stacking Ti3C2 flakes with CNTs. The Ti3C2/CNTs/MnCo2S4 electrode-based symmetric supercapacitor also demonstrated a high energy density, indicating the substantial enhancement of Ti3C2-based supercapacitors by rational design and modification.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Sroeurb Loy, Jun Xiang, Wen-Duo Yang, Yi-Fei Di, Rong-Da Zhao, Fu -Fa Wu, Dong-Mei Ma, Mei -Ting Li, Jia Li
Summary: A 3D hierarchical MnCo2O4@NiO nanosheet was successfully synthesized and calcined using a promising hydrothermal strategy. The MnCo2O4@NiO electrode exhibited a high specific capacitance and excellent cycling stability, making it a promising candidate for supercapacitor applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Energy & Fuels
Chengzhen Wei, Zhaojiang Yu, Zhencai Guo, Nan Guan, Wen Xing, Weimin Du, Lin Liu, Yongming Zhang, Cheng Cheng
Summary: A self-template strategy is used to prepare carbon coated yolk-shelled Fe3O4-CeO2 hollow spheres, which possess abundant inner cavities, large surface area and more electroactive sites. As an electrode material for supercapacitors, it shows high capacity, outstanding rate capability and superior cycling durability. Furthermore, a quasi-solid-state flexible asymmetric supercapacitor device is constructed, exhibiting high energy density and excellent power performance.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Biochemistry & Molecular Biology
Muthukumar Govindaraj, Ananya Srivastava, Magesh Kumar Muthukumaran, Pei-Chien Tsai, Yuan-Chung Lin, Bharathi Kannan Raja, Jerome Rajendran, Vinoth Kumar Ponnusamy, J. Arockia Selvi
Summary: This review discusses the latest developments and future prospects of enzymatic and non-enzymatic glucose sensors, focusing on their effectiveness in detecting glucose levels in bodily fluids. The recent advancements in wearable optical and electrochemical sensors contribute to the management and control of diabetes worldwide.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Physical
Jing Xu, Anna Schulte, Holger Schoenherr, Xin Jiang, Nianjun Yang
Summary: A novel method for designing and synthesizing active materials for capacitor electrodes is introduced, leading to high-performance supercapacitors with high specific capacitance, cycling stability, energy density, and power density. The fabricated capacitor electrode exhibits excellent performance even after 10,000 charging/discharging cycles, providing a potential approach for producing binder-/current-collector-free capacitor electrodes.
Article
Chemistry, Multidisciplinary
Xueying Chang, Cheng-Wei Lin, Ailun Huang, Maher F. El-Kady, Richard B. Kaner
Summary: Through laser scribing technique, short-chain aniline trimers (ATs) and carbon nanotubes (CNTs) were covalently bonded using amide covalent linkages, resulting in a covalently coupled AT/CNT (ccAT/CNT) composite. The ccAT/CNT composite exhibited excellent cycling and rate performance, retaining 80% of its original capacitance after 20,000 charge/discharge cycles. This molecular design approach enabled by laser irradiation provides a feasible pathway towards robust advanced energy storage devices.
Article
Chemistry, Multidisciplinary
Qinghua Gong, Haiqing Wang, Wenhua Song, Bin Sun, Pei Cao, Shaonan Gu, Xuefeng Sun, Guowei Zhou
Summary: This study reports the preparation of unique hierarchical yolk/double-shelled SiOx@TiO2@C nanospheres with different voids using a sol-gel method and carbon coating. These nanospheres show remarkable lithium-ion battery performance as anodes, including high lithium storage capacity, outstanding rate capability, and stable long-term cycle life.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Energy & Fuels
Xiaobo Chen, Wei Wang, Xin Pan, Chengqun Qiu
Summary: The hierarchical core-shell nanowire arrays of MnCo2O4@CuCo2O4/CC composite material exhibit excellent performance at 1 A g(-1) and can be used for the preparation of flexible all-solid-state asymmetric supercapacitors, showing good cycling stability and flexibility.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Multidisciplinary
Guoqiang Song, Claudia Li, Tian Wang, Kang Hui Lim, Feiyang Hu, Shuwen Cheng, Emmerson Hondo, Shaomin Liu, Sibudjing Kawi
Summary: A novel carbon-based material called CNTs@HPC, consisting of multi-wall carbon nanotubes encapsulated within hollow porous carbon particles, has been successfully synthesized for supercapacitor applications. The material exhibits a distinctive hierarchical porous structure with macropores, mesopores, and micropores, resulting in a high specific surface area of 913 m2 g-1. The optimized CNTs@HPC demonstrates a specific capacitance of 306 F g-1 at a current density of 1 A g-1 and displays additional pseudocapacitance characteristics, surpassing conventional electric double-layer capacitors.
Article
Chemistry, Analytical
Thomas Soranzo, Awatef Ben Tahar, Ayman Chmayssem, Marc Zelsmann, Pankaj Vadgama, Jean-Luc Lenormand, Phillipe Cinquin, Donald K. Martin, Abdelkader Zebda
Summary: In this study, the enzyme aldehyde reductase was synthesized and cloned from a human gene. Spectrophotometric and electrochemical measurements demonstrated that aldehyde reductase can catalyze the reduction of glucose to sorbitol and significantly decrease the electrocatalytic oxidation current of NADPH after glucose addition. This work provides insights into the construction of an efficient electrochemical glucose biosensor.
Article
Chemistry, Inorganic & Nuclear
Qiaoxiang Kang, Xue Yin, Ruxue Liu, Shuangyan Meng, Xueqing Xu, Bitao Su, Zhiwang Yang, Ziqiang Lei
Summary: Hollow multi-shelled In2S3 hierarchical nanotubes were successfully fabricated and used as efficient photocatalysts for visible light irradiation. The hierarchical structure on the surface of the nanotubes promoted the reaction and the key substances involved were identified.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Biophysics
Wenbin Liu, Qing Guo, Xingming Zhao, Bowen Zhang, Mingguang Wang, Yuxiang Dai, Yang Qi
Summary: Cu2O yolk-shell nanospheres, nanocubes, and microcubes were successfully prepared via a seed-medium process and applied in non-enzymatic glucose detection. The electrodes modified with CTAB and SDBS as surfactants exhibited high sensitivity and low LOD, demonstrating good selectivity and stability. These electrodes have potential for practical applications due to their excellent sensing ability in real serum.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
