Fabrication of a flexible free-standing film electrode composed of polypyrrole coated cellulose nanofibers/multi-walled carbon nanotubes composite for supercapacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (89) ◽  
pp. 86744-86751 ◽  
Author(s):  
Nana Li ◽  
Xiaoyan Li ◽  
Chuang Yang ◽  
Fei Wang ◽  
Jianyu Li ◽  
...  

Today, flexible energy storage systems have become attractive alternatives for applications in portable electronic devices.

Nanoscale ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 6832-6843 ◽  
Author(s):  
Jun Xu ◽  
Qi Zhang ◽  
Xin Liang ◽  
Jian Yan ◽  
Jiaqin Liu ◽  
...  

Rare earth oxides, for example scandium oxide, may open up a new prospect towards the development of advanced Li–S batteries and other energy storage systems.


2010 ◽  
Vol 10 (7) ◽  
pp. 4738-4742 ◽  
Author(s):  
Tsung-Chi Hung ◽  
Chia-Fu Chen ◽  
Chien-Chung Chen ◽  
Wha-Tzong Whang

2010 ◽  
Vol 1258 ◽  
Author(s):  
Mario Michan ◽  
Alireza Nojeh

AbstractCarbon nanotubes are attractive candidates for electron field-emitters due to their high aspect ratio, mechanical stability, and electrical conductivity. It has previously been shown that an electron beam hitting the tip of a carbon nanotube biased near the threshold of field-emission can stimulate the emission of a large number of electrons from the nanotube tip. Here we report on similar experiments on arrays of free-standing multi-walled carbon nanotubes (nanotube forests) interacting with a scanning electron microscope's primary beam. Electron gains of up to 19,000 were obtained. This can enable applications such as electron detection and multiplication, and vacuum transistors.


Crystals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 951
Author(s):  
Norah Hamad Almousa ◽  
Maha R. Alotaibi ◽  
Mohammad Alsohybani ◽  
Dominik Radziszewski ◽  
Saeed M. AlNoman ◽  
...  

Thermal energy storage (TES) technologies are considered as enabling and supporting technologies for more sustainable and reliable energy generation methods such as solar thermal and concentrated solar power. A thorough investigation of the TES system using paraffin wax (PW) as a phase changing material (PCM) should be considered. One of the possible approaches for improving the overall performance of the TES system is to enhance the thermal properties of the energy storage materials of PW. The current study investigated some of the properties of PW doped with nano-additives, namely, multi-walled carbon nanotubes (MWCNs), forming a nanocomposite PCM. The paraffin/MWCNT composite PCMs were tailor-made for enhanced and efficient TES applications. The thermal storage efficiency of the current TES bed system was approximately 71%, which is significant. Scanning electron spectroscopy (SEM) with energy dispersive X-ray (EDX) characterization showed the physical incorporation of MWCNTs with PW, which was achieved by strong interfaces without microcracks. In addition, the FTIR (Fourier transform infrared) and TGA (thermogravimetric analysis) experimental results of this composite PCM showed good chemical compatibility and thermal stability. This was elucidated based on the observed similar thermal mass loss profiles as well as the identical chemical bond peaks for all of the tested samples (PW, CNT, and PW/CNT composites).


2017 ◽  
Vol 5 (29) ◽  
pp. 15266-15272 ◽  
Author(s):  
Jiaqi Dai ◽  
Kun Fu ◽  
Ramesh Palanisamy ◽  
Amy Gong ◽  
Glenn Pastel ◽  
...  

High power and high energy density are important requirements for advanced energy storage systems in mobile electronic devices, electric vehicles, and military-grade high-rate energy storage systems.


RSC Advances ◽  
2017 ◽  
Vol 7 (28) ◽  
pp. 17301-17310 ◽  
Author(s):  
Bruno Ernould ◽  
Olivier Bertrand ◽  
Andrea Minoia ◽  
Roberto Lazzaroni ◽  
Alexandru Vlad ◽  
...  

Poly(2,2,6,6-tetramethylpiperidin-1-oxyl-4-yl methacrylate) has been grafted onto multi-walled carbon nanotubes to obtain conducting organic cathodes for Li-ion batteries.


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