Direct Fabrication of Well-Aligned Free-Standing Mesoporous Carbon Nanofiber Arrays on Silicon Substrates

2007 ◽  
Vol 129 (44) ◽  
pp. 13388-13389 ◽  
Author(s):  
Kaixue Wang ◽  
Wenhua Zhang ◽  
Richard Phelan ◽  
Michael A. Morris ◽  
Justin D. Holmes
Keyword(s):  
Mesoporous Carbon ◽  
Carbon Nanofiber ◽  
Silicon Substrates ◽  
Free Standing ◽  
Direct Fabrication

scholarly journals A Review of Electrospun Carbon Nanofiber-Based Negative Electrode Materials for Supercapacitors

Electrochem ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 236-250
Author(s):  
Arjun Prasad Tiwari ◽  
Tanka Mukhiya ◽  
Alagan Muthurasu ◽  
Kisan Chhetri ◽  
Minju Lee ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrode Materials ◽  
Carbon Nanofiber ◽  
Negative Electrode ◽  
Smart Devices ◽  
Potential Candidate ◽  
Free Standing ◽  
High Capacitance ◽  
Negative Electrode Materials ◽  
Carbon Based

The development of smart negative electrode materials with high capacitance for the uses in supercapacitors remains challenging. Although several types of electrode materials with high capacitance in energy storage have been reported, carbon-based materials are the most reliable electrodes due to their high conductivity, high power density, and excellent stability. The most common complaint about general carbon materials is that these electrode materials can hardly ever be used as free-standing electrodes. Free-standing carbon-based electrodes are in high demand and are a passionate topic of energy storage research. Electrospun nanofibers are a potential candidate to fill this gap. However, the as-spun carbon nanofibers (ECNFs) have low capacitance and low energy density on their own. To overcome the limitations of pure CNFs, increasing surface area, heteroatom doping and metal doping have been chosen. In this review, we introduce the negative electrode materials that have been developed so far. Moreover, this review focuses on the advances of electrospun nanofiber-based negative electrode materials and their limitations. We put forth a future perspective on how these limitations can be overcome to meet the demands of next-generation smart devices.

Residual Stress Measurement and Simulation of 3C-SiC Single and Poly Crystal Cantilevers

2010 ◽  
Vol 645-648 ◽  
pp. 865-868 ◽  
Author(s):  
Ruggero Anzalone ◽  
Massimo Camarda ◽  
Daniel Alquier ◽  
M. Italia ◽  
Andrea Severino ◽  
...  
Keyword(s):  
Experimental Data ◽  
Theoretical Study ◽  
Stress Measurement ◽  
Bulk Material ◽  
Raman Shift ◽  
Silicon Substrates ◽  
Free Standing ◽  
Element Analysis ◽  
Micro Fabrication ◽  
Sic Films

The fabrication of SiC MEMS-based sensors requires new processes able to realize microstructures on either bulk material or on the SiC surface. The hetero-epitaxial growth of 3C-SiC on silicon substrates allows one to overcome the traditional limitations of SiC micro-fabrication. In this work a comparison between single crystal and poly crystal 3C-SiC micro-machined structures will be presented. The free-standing structures realized (cantilevers and membrane) are also a suitable method for residual field stress investigation in 3C-SiC films. Measurement of the Raman shift indicates that the mono and poly-crystal 3C-SiC structures release the stress in different ways. Finite element analysis was performed to determine the stress field inside the films and provided a good fit to the experimental data. A comprehensive experimental and theoretical study of 3C-SiC MEMS structures has been performed and is presented.

Direct Fabrication of Free-Standing MOF Superstructures with Desired Shapes by Micro-Confined Interfacial Synthesis

2016 ◽  
Vol 55 (25) ◽  
pp. 7116-7120 ◽  
Author(s):  
Jin-Oh Kim ◽  
Kyoung-Ik Min ◽  
Hyunwoo Noh ◽  
Dong-Hwi Kim ◽  
Soo-Young Park ◽  
...  
Keyword(s):  
Free Standing ◽  
Direct Fabrication ◽  
Interfacial Synthesis

Chemical deposition of MnO2 nanosheets on graphene-carbon nanofiber paper as free-standing and flexible electrode for supercapacitors

Ionics ◽  
2016 ◽  
Vol 22 (7) ◽  
pp. 1185-1195 ◽  
Author(s):  
Yuanzhan Wu ◽  
Suqin Liu ◽  
Kuangmin Zhao ◽  
Zhen He ◽  
Hao Yuan ◽  
...  
Keyword(s):  
Carbon Nanofiber ◽  
Chemical Deposition ◽  
Free Standing ◽  
Flexible Electrode ◽  
Mno2 Nanosheets

Free-standing mesoporous electrospun carbon nanofiber webs without activation and their electrochemical performance

2015 ◽  
Vol 161 ◽  
pp. 587-590 ◽  
Author(s):  
Yue Zeng ◽  
Xiaoyan Li ◽  
Shaohua Jiang ◽  
Shuijian He ◽  
Hong Fang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Carbon Nanofiber ◽  
Free Standing

Electrical Properties of Thin Film and Bulk Diamond Treated in Hydrogen Plasma

1989 ◽  
Vol 162 ◽  
Author(s):  
Sacharia Albin ◽  
Linwood Watkins
Keyword(s):  
Natural Diamond ◽  
Hydrogen Plasma ◽  
Diamond Films ◽  
Chemical Vapor ◽  
Deposition Process ◽  
Silicon Substrates ◽  
Free Standing ◽  
Before And After ◽  
Type Ia ◽  
Bulk Diamond

ABSTRACTCurrent-voltage characteristics of type Ia synthetic diamond, type IIb natural diamond and free-standing diamond films were measured before and after hydrogenation. The diamond films were polycrystalline, deposited on sacrificial silicon substrates using a microwave chemical vapor deposition process. On hydrogenation, all the samples showed several orders of magnitude increase in conductivity. Hydrogenation was carried out under controlled conditions to study the changes in the I-V characteristics of the samples. The concentration of electrically active hydrogen was determined from the I-V data. Hydrogen passivation of deep traps in diamond is clearly demonstrated.

Free-standing boron and oxygen co-doped carbon nanofiber films for large volumetric capacitance and high rate capability supercapacitors

Nano Energy ◽  
2015 ◽  
Vol 15 ◽  
pp. 235-243 ◽  
Author(s):  
Zi-You Yu ◽  
Li-Feng Chen ◽  
Lu-Ting Song ◽  
Yan-Wu Zhu ◽  
Heng-Xing Ji ◽  
...  
Keyword(s):  
Carbon Nanofiber ◽  
Rate Capability ◽  
High Rate ◽  
High Rate Capability ◽  
Free Standing ◽  
Volumetric Capacitance ◽  
Co Doped

Flexible and free-standing carbon nanofiber matt derived from electrospun polyimide as an effective interlayer for high-performance lithium–sulfur batteries

2019 ◽  
Vol 54 (12) ◽  
pp. 9075-9087 ◽  
Author(s):  
Tejassvi Pakki ◽  
E. Hari Mohan ◽  
Neha Y. Hebalkar ◽  
Jyothirmayi Adduru ◽  
Sarada V. Bulusu ◽  
...  
Keyword(s):  
High Performance ◽  
Carbon Nanofiber ◽  
Free Standing ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Ruthenium oxide coated ordered mesoporous carbon nanofiber arrays: a highly bifunctional oxygen electrocatalyst for rechargeable Zn–air batteries

2016 ◽  
Vol 4 (17) ◽  
pp. 6282-6289 ◽  
Author(s):  
Ziyang Guo ◽  
Chao Li ◽  
Wangyu Li ◽  
Hua Guo ◽  
Xiuli Su ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
Carbon Nanofiber ◽  
Rate Capability ◽  
Ruthenium Oxide ◽  
Ordered Mesoporous Carbon ◽  
Cycle Life ◽  
Long Cycle ◽  
Long Cycle Life ◽  
Ordered Mesoporous

Zn–air batteries with a RuO2-coated MCNA catalyst display relatively low overpotentials, long cycle life and superior rate capability.

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