NDLI: Synthesis and Electrochemical Performance of Mesoporous Hollow Sphere Shape LiMn 2 O 4 using Silica Template

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Synthesis and Electrochemical Performance of Mesoporous Hollow Sphere Shape LiMn 2 O 4 using Silica Template

Content Provider	Semantic Scholar
Author	Ryu, Seong-Hyeon Ryu, Kwang Sun
Copyright Year	2011
Abstract	with mesoporous hollow sphere shape was synthesized by precipitation method with silica template. The synthesized has nanosized first particle and mesoporous hollow sphere shape. Silica template was removed by chemical etching method using NaOH solution. When the concentration of NaOH solution was increased, first particle size of manganese oxide was decrease and confirmed mesoporous hollow shpere shape. X-ray diffraction(XRD) patterns revealed that the synthesized samples has spinel structure with Fd3m space group. In case the ratio of silica and maganese salt increased, the size of first particles was decreased. The tetragoanal with micron size was synthesized at ratio of silica and manganese salt over 1 : 9. The prepared samples were assembled as cathode materials of Li-ion battery with 2032 type coin cell and their electrochemical properties are examined by charge-discharge and cyclic performance. Electrochemical measurements show that the nano-size particles had lower capacity than micron-size particles. But, cyclic performance of nano-size particles had better than that of micron-size particles.
Starting Page	184
Ending Page	190
Page Count	7
File Format	PDF HTM / HTML
DOI	10.5229/JKES.2011.14.3.184
Volume Number	14
Alternate Webpage(s)	http://ocean.kisti.re.kr/downfile/volume/kecs/JHHHB@/2011/v14n3/JHHHB@_2011_v14n3_184.pdf
Alternate Webpage(s)	https://doi.org/10.5229/JKES.2011.14.3.184
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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