Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Sun Kyung Kim"'
Publikováno v:
KONA Powder and Particle Journal, Vol 31, Iss 0, Pp 111-125 (2014)
Graphene (GR) is a flat monolayer of sp2-bonded single carbon atoms densely packed into a honeycomb crystal lattice. Due to its unique characteristics, GR is expected to contribute to enhanced nanoelectronic, bio-electronic devices, etc. in the near
Externí odkaz:
https://doaj.org/article/90aecfecdfc5462c805c1eccb39e5987
Autor:
Ji Hyuk Choi, Hee Dong Jang, Hankwon Chang, Sun Kyung Kim, Chongmin Lee, Kyungbin Lee, Taehyeong Ha, Seung Woo Lee
Publikováno v:
Advanced Powder Technology. 32:464-471
Recently, there is a growing concern for high performance energy storage devices in many applications where a lot of energy needs to be either stored or delivered. Here, we introduce a facile strategy to fabricate effectively combined 3D structured c
Publikováno v:
Advanced Powder Technology. 30:3079-3087
In recent years, supercapacitors have received considerable research attention for energy storage systems due to their high-power density, fast charge-discharge processes, and long cycle life. The superior performance of supercapacitors is considerab
Publikováno v:
Nano-Micro Letters, Vol 12, Iss 1, Pp 1-9 (2019)
Nano-Micro Letters
Nano-Micro Letters
Highlights K2Ti6O13 nanoparticle (KTO NP)-loaded porous reduced graphene oxide crumples (PGCs) were fabricated.The specific capacitance was improved due to the synergy effect between KTO and PGC.The KTO NP/PGC composites can be promising electrode ma
Publikováno v:
ACS applied materialsinterfaces. 13(30)
Huge volume changes of silicon particles upon alloying and dealloying reactions with lithium are a major reason for the poor cycle performance of silicon-based anodes for lithium-ion batteries. To suppress dimensional changes of silicon is a key stra
Autor:
Chongmin Lee, Su-Ryeon Park, Ji Hyuk Choi, Eun Hee Jo, Sun Kyung Kim, Hee Dong Jang, Hankwon Chang
Publikováno v:
Aerosol and Air Quality Research. 19:449-454
A multiwall carbon nanotube/graphene (MWCNT/GR) composite was synthesized for an enhanced supercapacitor. Aerosol spray drying (ASD) was used to synthesize the MWCNT/GR particles using a mixture of graphene oxide (GO) solution and MWCNT. The effect o
Publikováno v:
Advanced Powder Technology. 30:18-22
Graphene (GR) has excellent physical and chemical properties, making it promising for application in supercapacitors. In this study, we report the synthesis of spherical GR (SGR) composed of tens of GR sheets and its application in supercapacitors. G
Publikováno v:
Applied Surface Science. 448:571-575
Asymmetric supercapacitors are considered promising energy storage devices due to their high applied voltage and corresponding high energy density. Herein, Fe-Co binary oxides nanoparticles loaded crumpled graphene (CGR) composites were prepared for
Publikováno v:
Journal of Alloys and Compounds. 751:43-48
Silicon (Si) particles are considered as promising anode electrode materials in lithium ion batteries (LIBs) because of high theoretical energy capacity of 3579 mA h/g. However, the large volume expansion of Si during the cycling process cause struct
Publikováno v:
Journal of Alloys and Compounds. 735:2030-2037
Mixed transition metal oxides (MTMOs) have been explored as attractive electrode materials for supercapacitors owing to their higher electronic conductivity and larger specific capacitance compared with simple transition metal oxides. Among MTMOs, co