Modulating 2D Heterointerface with g-C3N4 Meshes: A Suitable Hetero-Layered Architecture for High-Power and Long-Life Energy Storage

Author(s):  
Yunping Wu ◽  
Wei Wei ◽  
Tianyi Ding ◽  
Sheng Chen ◽  
Rui Zhai ◽  
...  

Two-dimensional (2D) heterostructures combine the advantageous features of different 2D materials and represent advanced electrode architectures for development of efficient energy storage devices. However, the common 2D heterostructures made by...

2014 ◽  
Vol 245 ◽  
pp. 553-556 ◽  
Author(s):  
Ken Sakaushi ◽  
Eiji Hosono ◽  
Georg Nickerl ◽  
Haoshen Zhou ◽  
Stefan Kaskel ◽  
...  

Author(s):  
Dhanasekar Kesavan ◽  
Vimal Kumar Mariappan ◽  
Karthikeyan Krishnamoorthy ◽  
Sang-Jae Kim

In this study, we report a facile carbothermal method for the preparation of boron-oxy-carbide (BOC) nanostructures and explore their properties towards electrochemical energy storage devices.


2020 ◽  
Vol 11 ◽  
pp. 662-670
Author(s):  
Matangi Sricharan ◽  
Bikesh Gupta ◽  
Sreejesh Moolayadukkam ◽  
H S S Ramakrishna Matte

MoO3 is a versatile two-dimensional transition metal oxide having applications in areas such as energy storage devices, electronic devices and catalysis. To efficiently utilize the properties of MoO3 arising from its two-dimensional nature exfoliation is necessary. In this work, the exfoliation of MoO3 is carried out in 2-butanone for the first time. The achieved concentration of the dispersion is about 0.57 mg·mL−1 with a yield of 5.7%, which are the highest values reported to date. These high values of concentration and yield can be attributed to a favorable matching of energies involved in exfoliation and stabilization of MoO3 nanosheets in 2-butanone. Interestingly, the MoO3 dispersion in 2-butanone retains its intrinsic nature even after exposure to sunlight for 24 h. The composites of MoO3 nanosheets were used as an electrode material for supercapacitors and showed a high specific capacitance of 201 F·g−1 in a three-electrode configuration at a scan rate of 50 mV·s−1.


Author(s):  
Nilimapriyadarsini Swain ◽  
Saravanakumar Balasubramaniam ◽  
Manab Kundu ◽  
Lukas Schmidt-Mende ◽  
Ananthakumar Ramadoss

Supercapacitors have emerged as an outstanding candidate among numerous energy storage devices because of their long-term cycle life, high power density, and minimal safety concerns. As we know, the lower...


2020 ◽  
Vol 142 (46) ◽  
pp. 19570-19578
Author(s):  
Minghao Yu ◽  
Naisa Chandrasekhar ◽  
Ramya Kormath Madam Raghupathy ◽  
Khoa Hoang Ly ◽  
Haozhe Zhang ◽  
...  

Materials ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 4302
Author(s):  
Dominik Knozowski ◽  
Magdalena Graczyk-Zajac ◽  
Grzegorz Trykowski ◽  
Monika Wilamowska-Zawłocka

Herein we present a study on polymer-derived silicon oxycarbide (SiOC)/graphite composites for a potential application as an electrode in high power energy storage devices, such as Lithium-Ion Capacitor (LIC). The composites were processed using high power ultrasound-assisted sol-gel synthesis followed by pyrolysis. The intensive sonication enhances gelation and drying process, improving the homogenous distribution of the graphitic flakes in the preceramic blends. The physicochemical investigation of SiOC/graphite composites using X-ray diffraction, 29Si solid state NMR and Raman spectroscopy indicated no reaction occurring between the components. The electrochemical measurements revealed enhanced capacity (by up to 63%) at high current rates (1.86 A g−1) recorded for SiOC/graphite composite compared to the pure components. Moreover, the addition of graphite to the SiOC matrix decreased the value of delithiation potential, which is a desirable feature for anodes in LIC.


2019 ◽  
Vol 7 (28) ◽  
pp. 16962-16968 ◽  
Author(s):  
Jeong Hee Park ◽  
Harpalsinh H. Rana ◽  
Jun Young Lee ◽  
Ho Seok Park

In the quest for renewable and highly efficient energy storage devices, all-lignin-based flexible supercapacitors are fabricated by integrating cross-linked lignin hydrogel electrolytes with electrospun lignin/polyacrylonitrile nanofiber electrodes.


Author(s):  
Ya-Nan Liu ◽  
Huili Li ◽  
Xue Wang ◽  
Tian Lv ◽  
Keyi Dong ◽  
...  

Flexible supercapacitors have attracted increasing interests due to their high power density, long-term cycling life and excellent safety. Liking other energy storage devices, flexible supercapacitors show serious performance degradation as...


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