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衍射峰强度比pc弱 - els-cdn
Supporting information
Hydrothermal Synthesis of Layered Molybdenum Sulfide/N-Doped Graphene Hybrid with Enhanced Supercapacitor Performance
Bingqiao Xiea, Ying Chena*，Mengying Yua, Tu Suna, Luhua Lua, Ting Xiec, Yong Zhangb,c, Yucheng Wub,c
Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan 388 Lumo RD, Wuhan 430074, China
School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, China
Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, Hefei, 230009, China
Figure S1. TEM image of (a) NG, and (b) MoS2/NG with petal-like cluster morphology, (c) AFM image and corresponding height profile of GO.
Figure S2. The photograph of GO(left), MoS2/NG(middle) and pure MoS2(right) dispersed solution after left to stand for 12h
Table S1. Percentage of O and N species obtained by fitting the N1s and O1s spectra.
Sample N distribution/ % O distribution/ % N-6
(398.5eV) N-5
(399.5eV) N-Q
(401.5eV) N-X
(404.4eV) O-I
(531.5eV) O-II
(532.8eV) O-III
(534.7eV) NG
MoS2/NG(5) 27.1 52.2 15.1
17.6 5.6 24.7 47.1 10.6 22.5 53.1 24.4 MoS2/NG(3) 35.8 36.2 17.7 10.3 18.4 65.4 16.2 MoS2/NG(1.5) 35.9 37.6 19.4 7.1 7.2 66.1 26.7
Figure S3. IR spectra of the NG, MoS2/GNs and three MoS2/NG samples.
Table S2. Capacitance performance of MoS2/graphene composite
electrode materials involved precursors
(preparation method) capacitance value(F/g) electrolyte ref. MoS2-Gr GO+Na2MoO4+L-cysteine
(hydrothermal) 243(1A/g)
130(5A/g) 1M Na2SO4 19 MoS2/RGO GO+(NH4)6Mo7O24+NH2CSNH2
(hydrothermal) 249(0.3A/g) ~173(5A/g) 1M H2SO4 16 MoS2/RGO GO(DMF)+MoCl5+butyl mercaptan
(microwave) 205(80mV/s) 1M HClO4 18 MoS2-GNs graphite+MoS2 pellets
(layer-by-layer) 255(2A/g) 1M Na2SO4 17 MoS2/NG(1.5) GO+Na2MoO4+L-cysteine+urea
(hydrothermal) 245(0.25A/g)
196(5A/g) 6M KOH this paper
Figure S4. (a) XPS survey spectra of MoS2/GNs and NG, (b) N 1s spectra of NG, (c) Mo 3d spectra of
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