Article
Chemistry, Physical
Chang Su Yeo, Young Jung Heo, Min Kyoon Shin, Jong-Hoon Lee, Yong Yeol Park, Seong-Jun Mun, Yahya A. Ismail, Le Hoang Sinh, Soo-Jin Park, Sang Yoon Park
Summary: The study successfully developed ultra-long and millimeter-thick supercapacitors using gel graphene oxide fibers with an ultrahigh aspect ratio, without the need for post-treatment. These supercapacitors have a large electrochemical volumetric capacitance, which enables practical applications.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Energy & Fuels
Syedah Afsheen Zahra, Ebrima Ceesay, Syed Rizwan
Summary: Two-dimensional MXenes are efficient electrochemical capacitors with high energy and power densities. V2CTx MXene, as one of the lightest members, is limited in its effective use due to restacking. A composite of ZrO2-MXene was reported, where ZrO2 nanparticles were grown on V2CTx MXene sheets. The interconnected structure boosted conductivity and suppressed restacking. This composite showed outstanding capacitance and cyclic stability.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Multidisciplinary
Beenish Mustafa, Wengang Lu, Zhiyuan Wang, Fuzhuo Lian, Andy Shen, Bing Yang, Jun Yuan, Chang Wu, Yangbowen Liu, Weiwei Hu, Lei Wang, Geliang Yu
Summary: Rational design electrodes are created by mixing MXene with an aqueous solution of chloroauric acid. The electrodes show improved rate performance and structural durability due to simultaneous self-reduction of the material, resulting in more active electrochemical sites and enhanced electron transfer. Additionally, MXene-based electrode materials work well as supercapacitors in sulfuric acid.
Article
Chemistry, Physical
Min Zhang, Jun Cao, Yi Wang, Jia Song, Tianci Jiang, Yanyu Zhang, Weimeng Si, Xiaowei Li, Bo Meng, Guangwu Wen
Summary: A method using electrolyte mediation is employed to integrate dense structure reduced graphene oxide/MXene-electrolyte composite films, which can serve as self-supporting electrodes, resulting in enhanced volumetric specific capacity and energy density. The composite films also exhibit good flexibility electrochemical performance.
Article
Energy & Fuels
S. W. Bokhari, A. Ellis, M. Uceda, S. Wei, M. Pope, S. Zhu, W. Gao, P. C. Sherrell
Summary: This study synthesized a nanocomposite of nitrogen-doped reduced graphene oxide and mixed-phase molybdenum disulfide nanoflowers using a one-pot hydrothermal synthesis. The nanocomposite exhibited high surface area and electrical conductivity, and the interconnected charge transport channels facilitated robust ion transport and minimized charge transfer resistance. As a result, the electrodes showed excellent electrochemical activity, high specific capacitance, and exceptional energy and power densities, with excellent capacitance retention during long-term cycling.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Multidisciplinary
Bin Li, Na Wu, Qilei Wu, Yunfei Yang, Fei Pan, Wei Liu, Jiurong Liu, Zhihui Zeng
Summary: Transition metal carbides/nitrides (MXenes) have potential for preparing wearable, flexible multifunctional e-textiles due to their exceptional electrical and mechanical properties. However, challenges such as high production costs and low utilization of precursor titanium aluminum carbide (MAX) need to be addressed. This work proposes a 100% utilization of MAX/MXene strategy to produce additive-free conductive inks for creating durable, multifunctional MXene-based e-textiles that perform in extreme conditions.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Energy & Fuels
Abdulrahman S. Binfaris, Alexander G. Zestos, Jandro L. Abot
Summary: Developing efficient, sustainable, and high-performance energy storage systems, specifically carbon nanotube yarn supercapacitors, is crucial for advancing industries like integrated structural health monitoring. Experimental studies were conducted to determine the capacitive properties, energy, and power densities of supercapacitors fabricated using various materials. The results showed that the CNTY supercapacitors exhibited excellent capacitive behavior and fluctuated between energy densities of 3.89 Wh/kg and 6.46 Wh/kg, and power densities of 8 W/kg and 13.20 W/kg. These supercapacitors are being tailored to power CNTY sensors integrated into structures to monitor damage, strain, temperature, and more.
Article
Chemistry, Multidisciplinary
Yongjiu Yuan, Lan Jiang, Xin Li, Pei Zuo, Xueqiang Zhang, Yiling Lian, Yunlong Ma, Misheng Liang, Yang Zhao, Liangti Qu
Summary: In this study, an in situ strategy using a temporally and spatially shaped femtosecond laser was reported to synthesize MXene quantum dots (MQDs) uniformly attached to laser reduced graphene oxide (LRGO) for ultratransparent electrodes with exceptional electrochemical capacitance. The mechanism and plasma dynamics of the synthesis process were analyzed. The MQD/LRGO supercapacitor exhibited high flexibility and durability, ultrahigh energy density, long cycle life, excellent capacitance, high transparency, and high performance.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Junjun Huang, Wenqing Zhang, Xin Chen, Sanlong Wang, Zhenming Chen, Peng Li, Honglin Li, Chengmei Gui
Summary: This study proposes a new structural sensor that integrates a Ni particle-encapsulated carbon tube (Ni@C tube) with polydimethylsiloxane (PDMS) by means of multiple strain mechanisms for improving recognition accuracy using a signal superposition technique. By integrating convolutional neural network (CNN) analysis based on the voltage signals of the T-TENG device, we explored a strategy that could enable the as-fabricated device to recognize 6 gestures with 99.3% recognition accuracy and 8 different materials with 99.8% recognition accuracy in the natural environment.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Agricultural Engineering
Lin Li, Dou Du, Chengen He, Lianqing Yu, Wenyang Tang, Shuang Hu, Xinyu Wang, Zhuan Fu, Liangjun Xia, Weilin Xu, Lingxue Kong
Summary: A reduced graphene oxide/cotton yarn supercapacitor was fabricated using a green hydrothermal approach without the use of any chemical reducing agents. The study investigated the reduction efficiency of graphene oxide nanoparticles and morphology change of cotton fibers under different hydrothermal treatments, and their effects on the energy storage performance of the supercapacitor.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Physics, Applied
Xiu-Yan Fu, Chang-Jing Ma, Ruo-Yu Shu, Yu-Yin Zhang, Hao-Bo Jiang
Summary: MXene-based layered materials with high conductivity have shown excellent performance in supercapacitor applications. However, device planarization hinders their broader ability in film-based energy storage devices. In this study, self-assembled MXene-graphene oxide (M-GO) composites were fabricated based on the electrostatic interaction between MXene and GO solutions. The as-prepared M-GO composite exhibited homogeneous structures and tunable conductivities, benefiting charge storage and ions transmission. Planar supercapacitors based on these M-GO composites showed enhanced electrochemical performance, thanks to the improved interface effect between electrodes and electrolytes. Additionally, planar M-GO based supercapacitors demonstrated excellent electrochemical performance, showing great potential in wearable electronic applications.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Wen Yu, Xiang Li, Jianxin He, Yuankun Chen, Linya Qi, Pingping Yuan, Kangkang Ou, Fan Liu, Yuman Zhou, Xiaohong Qin
Summary: In this study, nanofiber yarn loaded with a high-efficiency antibacterial agent was prepared using electrospinning technology. The nanofiber fabric showed over 99.99% antibacterial rate against Escherichia coli and Staphylococcus aureus, which remained above 99.99% even after ten washes, demonstrating high antibacterial activity and excellent durability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Engineering, Environmental
K. Nasrin, M. Arunkumar, N. Koushik Kumar, V. Sudharshan, S. Rajasekar, D. Mukhilan, M. Arshad, M. Sathish
Summary: This research demonstrates the ability to store energy in a hetero-assembly of two-dimensional materials, reduced graphene oxide (rGO) and Nb2C MXene, through dual N doping on both lattices using the supercritical fluid processing method. The engineered hetero-assembly, N-(Nb2C/rGO), exhibits outstanding electrochemical performance with high specific capacitance and admirable energy density in aqueous and non-aqueous electrolytes. Additionally, the capacitance retention remains close to 100% after multiple cycles of charging and discharging in a quasi-solid-state electrolyte. This study provides insights into the modulation of energy storage ability and the design of high-performance electrode materials for supercapacitors.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Multidisciplinary
Sheng-xue Yan, Shao-hua Luo, Qing Wang, Ya-hui Zhang, Xin Liu
Summary: The study utilized in-situ carbon coating technology to embed sulfide-loaded MXene in carbon nanofibers, improving sulfide conductivity and ion transfer rate. The resulting hybrid membrane offers a solution to the problems of poor sulfide conductivity and cyclic stability through its unique structure and characteristics.
COMPOSITES PART B-ENGINEERING
(2021)
Review
Chemistry, Multidisciplinary
Md Rashedul Islam, Shaila Afroj, Kostya S. Novoselov, Nazmul Karim
Summary: Electronic textiles have attracted attention as lightweight wearable devices that can interface with the human body and monitor physiological parameters. However, one major challenge is the lack of compatible power supply units. Textile-based supercapacitors, with their thin and flexible properties, offer a promising solution for powering smart gadgets integrated into clothing.
Article
Chemistry, Physical
Nanfei He, Ozkan Yildiz, Qin Pan, Jiadeng Zhu, Xiangwu Zhang, Philip D. Bradford, Wei Gao
JOURNAL OF POWER SOURCES
(2017)
Article
Chemistry, Physical
Guixia Wang, Vahid Babaahmadi, Nanfei He, Yixin Liu, Qin Pan, Majid Montazer, Wei Gao
JOURNAL OF POWER SOURCES
(2017)
Article
Chemistry, Multidisciplinary
Qin Pan, Eunkyoung Shim, Behnam Pourdeyhimi, Wei Gao
Article
Nanoscience & Nanotechnology
Jiangang Qu, Nanfei He, Shradha V. Patil, Yanan Wang, Debjyoti Banerjee, Wei Gao
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
Chemistry, Physical
Qi Qiao, Chang Liu, Wei Gao, Liangliang Huang
Article
Nanoscience & Nanotechnology
Srivatsan Ramesh, Jack Davis, Alexandra Roros, Chuanzhen Zhou, Nanfei He, Wei Gao, Stefano Menegatti, Saad Khan, Jan Genzer
Summary: This study developed the first composite nonwoven fiber mats with infrared light-controlled permeability, allowing for remote control of the membrane's permeability to electrolytes through photothermal smart-gating. The technology shows potential for processing temperature-sensitive bioactive ingredients or remote-controlled bioreactors.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Nakarin Subjalearndee, Nanfei He, Hui Cheng, Panpanat Tesatchabut, Priew Eiamlamai, Somruthai Phothiphiphit, Orapan Saensuk, Pimpa Limthongkul, Varol Intasanta, Wei Gao, Xiangwu Zhang
Summary: This study investigates the fabrication of graphene oxide (GO) and manganese dioxide (MnO2) composite fibers and their application as fiber cathodes in Zn-ion batteries. The study examines the effects of MnO2 micromorphology and mass loading on the properties of the resulting composite fibers. The researchers find that thermal annealing under an argon atmosphere is the most effective method to avoid MnO2 dissolution and leaching.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Electrical & Electronic
Nanfei He, Junhua Song, Jinyun Liao, Feng Zhao, Wei Gao
Summary: Yarn-shaped supercapacitors (YSCs) with good mechanical flexibility can be integrated into e-textiles. However, current YSCs still suffer from length short-circuiting due to the failure of gel electrolyte structure. In this study, separator threads are introduced to address this issue and a YSC configuration that can withstand mechanical deformation is proposed.
NPJ FLEXIBLE ELECTRONICS
(2022)
Article
Chemistry, Physical
Nanfei He, Shradha Patil, Jiangang Qu, Jinyun Liao, Feng Zhao, Wei Gao
ACS APPLIED ENERGY MATERIALS
(2020)
Article
Nanoscience & Nanotechnology
Yi Shi, Xiao-Kun Huang, Yang Wang, Yue Zhou, Dong-Rui Yang, Feng-Bin Wang, Wei Gao, Xing-Hua Xia
ACS APPLIED NANO MATERIALS
(2019)
Article
Chemistry, Physical
Nanfei He, Weitao Shan, Julia Wang, Qin Pan, Jiangang Qu, Guofeng Wang, Wei Gao
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Article
Chemistry, Physical
Nanfei He, Seunghyun Yoo, Jiajia Meng, Ozkan Yildiz, Philip D. Bradford, Sunkyu Park, Wei Gao
Article
Nanoscience & Nanotechnology
Nanfei He, Qin Pan, Yixin Liu, Wei Gao
ACS APPLIED MATERIALS & INTERFACES
(2017)