Mesoporous Transition Metal Dichalcogenide ME2 (M = Mo, W; E = S, Se)

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Mesoporous Transition Metal Dichalcogenide ME2 (M = Mo, W; E = S, Se)

Electronic Supplementary Material (ESI) for RSC Advances. This journal is © The Royal Society of Chemistry 2016 Electronic Supplementary Information (ESI) for RSC Advances This journal is © Royal Society of Chemistry 2016 Mesoporous transition metal dichalcogenide ME2 (M = Mo, W; E = S, Se) with 2-D layered crystallinity as anode materials for lithium ion batteries Yoon Yun Lee,a Gwi Ok Park,b Yun Seok Choi,c Jeong Kuk Shon,‡c Jeongbae Yoon,b Kyoung Ho Kim,c Won-Sub Yoon,*b Hansu Kim,*d and Ji Man Kim*abc a SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea b Department of Energy Science, Sungkyunkwan University, Suwon 16419, Republic of Korea c Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea d Department of Energy Engineering, Hanyang University, Seoul 04763, Republic of Korea *Corresponding authors: Prof. Won-Sub. Yoon ([email protected]); Prof. Hansu Kim ([email protected]); Prof. Ji Man Kim ([email protected]) ‡ Present address: Energy Lab., Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co., Ltd., P.O. Box 111, Suwon 16678, Republic of Korea page 1 of 6 Figure S1. (a) Low angle XRD pattern, (b) N2-sorption isotherm and pore size distribution curve, (c) SEM image and (d) TEM image of the mesoporous silica KIT-6. page 2 of 6 Figure S2. Wide angle XRD patterns of (a) KIT-6 silica template, (b) H3PMo12O40·xH2O@KIT-6 silica template, (c) mixture of H3PMo12O40·xH2O@KIT-6 and sulphur powder, and (d) after heating at 160 °C for 12 h of (c). page 3 of 6 Figure S3. Raman spectrums of the mesoporous (a) MoS2, (b) MoSe2, (c) WS2 and (d) WSe2. page 4 of 6 Figure S4. Wide angle XRD patterns of (a) MoS2 in JCPDS #87-2416, (b) bulk MoS2, (c, d) SEM images and (e, f) TEM images of the bulk MoS2. page 5 of 6 Figure S5. Galvanostatic discharge – charge curves at various current rates from 0.1 to 2 C of the mesoporous electrodes, (a) MoS2, (b) MoSe2, (c) WS2 and (d) WSe2. page 6 of 6.

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