Author
Jie Zhou
Bio: Jie Zhou is an academic researcher from Shenzhen University. The author has contributed to research in topics: Supercapacitor & Capacitance. The author has an hindex of 5, co-authored 8 publications receiving 172 citations.
Topics: Supercapacitor, Capacitance, Carbon nanotube, Energy storage, PEDOT:PSS
Papers
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TL;DR: A conductive and highly deformable freestanding all-pseudocapacitive paper electrode is fabricated by solution processing of hybrid inks based on Ti3 C2 Tx MXene and ultralong MnO2 nanowires, which manifests a remarkable areal capacitance and outstanding volumetric capacitance.
Abstract: Flexible energy storage electronics have gained increasing attention in recent years, but the simultaneous acquiring of high volumetric and high areal capacities as well as excellent flexibility in order to truly implement wearable and portable electronics in practice remains challenging. Here, a conductive and highly deformable freestanding all-pseudocapacitive paper electrode (Ti3 C2 Tx /MnO2 NWs) is fabricated by solution processing of hybrid inks based on Ti3 C2 Tx MXene and ultralong MnO2 nanowires. The resulting Ti3 C2 Tx /MnO2 NWs hybrid paper manifests a remarkable areal capacitance of up to 205 mF cm-2 and outstanding volumetric capacitance of 1025 F cm-3 . Both the values are highly comparable with, or in most cases much higher than those of previously reported MXene-based flexible electrodes. The excellent energy storage performance is well maintained with a capacitance retention of 98.38% during 10 000 charge-discharge cycles. In addition, the flexible supercapacitor demonstrates excellent flexibility and electrochemical stability during repeated mechanical bendings of up to 120°, suggesting great potentials for the applications in future flexible and portable electronics.
148 citations
TL;DR: In this article, a MOF-derived Co-Fe oxide porous nanorod is introduced into the freestanding MXene film to produce a high-performance flexible electrode with excellent deformability and editability.
61 citations
47 citations
TL;DR: In this article, an all-in-one fiber high performance stretchable supercapacitor is constructed based on high performance bead-like NiCo2S4@carbon nanotube and Ti3C2Tx@N/O enriched carbon cloth threads electrodes.
39 citations
TL;DR: In this article, a flexible film electrode based on 2D MXene wrapped 3D Ni-Fe oxide nanocube mixed analogous heterostructure was fabricated and the resulting composite film electrode successfully inherits the merit of different building blocks: MXene layers works as binders and conductive additives that can connect cubic NiFe oxide nanoparticals, facilitate charge transfer and avoid a significant conductivity decrease in the resulting electrode.
36 citations
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01 Apr 2016
TL;DR: Heterocyclic pyrrole molecules are in situ aligned and polymerized in the absence of an oxidant between layers of the 2D Ti3C2Tx (MXene), resulting in high volumetric and gravimetric capacitances with capacitance retention of 92% after 25,000 cycles at a 100 mV s(-1) scan rate as discussed by the authors.
Abstract: Heterocyclic pyrrole molecules are in situ aligned and polymerized in the -absence of an oxidant between layers of the 2D Ti3C2Tx (MXene), resulting in high volumetric and gravimetric capacitances with capacitance retention of 92% after 25,000 cycles at a 100 mV s(-1) scan rate.
692 citations
TL;DR: The structure, properties, stability, and species of layered MXenes are introduced, and the focus then turns to the capacitive energy-storage mechanisms and the factors determining the electrochemical behavior and performance in supercapacitors.
Abstract: MXenes refer to a family of 2D transition metal carbides/nitrides that are rich in chemistry. The first member of the family, Ti3C2Tx, was reported in 2011. Since then MXenes have opened up an exciting new field in 2D inorganic functional materials by virtue of their intrinsic electronic conductivity, superior hydrophilicity, rich surface chemistry and layered structure, as evidenced by the fact that the number of papers on MXenes has increased exponentially. The unique properties and ease of processing have positioned them as promising materials for a variety of applications including energy storage, especially for supercapacitors. In this review, we aim to summarize the current advances in MXene research on supercapacitors. We begin by reviewing various fabrication routes and their influence on the structure and surface chemistry of MXenes. The structure, properties, stability, and species of layered MXenes are then introduced. The focus then turns to the capacitive energy-storage mechanisms and the factors determining the electrochemical behavior and performance in supercapacitors. Besides, various types of MXene-based supercapacitors are summarized to highlight the significance of MXenes in constructing energy storage devices. Finally, challenges and prospects in this booming field are proposed to promote further development of MXenes in supercapacitors.
346 citations
300 citations
TL;DR: In this paper, the authors acknowledge the support from the National Natural Science Foundation of China (51702225), National Key Research and Development Program (2016YFA0200103), and Jiangsu Youth Science Foundation (BK20170336).
Abstract: L.H.Y. and Z.D.F. contributed equally to this work. This work was supported by the National Natural Science Foundation of China (51702225), National Key Research and Development Program (2016YFA0200103), and Jiangsu Youth Science Foundation (BK20170336). The authors acknowledge the support from Suzhou Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Suzhou, China.
254 citations