Manganese Dioxide Morphology on Electrochemical Performance of Ti3C2Tx@MnO2 Composites

Xue-Lin LI; Jian-Feng ZHU; Yu-Hong JIAO; Jia-Xuan HUANG; Qian-Nan ZHAO

doi:10.15541/jim20190309

Journals >Journal of Inorganic Materials >Volume 35 >Issue 1 >Page 119 > Article

Journal of Inorganic Materials
Vol. 35, Issue 1, 119 (2020)

Manganese Dioxide Morphology on Electrochemical Performance of Ti₃C₂T_x@MnO₂ Composites

Xue-Lin LI, Jian-Feng ZHU^*, Yu-Hong JIAO, Jia-Xuan HUANG, and Qian-Nan ZHAO

Author Affiliations

Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Material Science and Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China

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DOI: 10.15541/jim20190309 Cite this Article

Xue-Lin LI, Jian-Feng ZHU, Yu-Hong JIAO, Jia-Xuan HUANG, Qian-Nan ZHAO. Manganese Dioxide Morphology on Electrochemical Performance of Ti₃C₂T_x@MnO₂ Composites[J]. Journal of Inorganic Materials, 2020, 35(1): 119 Copy Citation Text

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1. FE-SEM mages of the samples

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FE-SEM images (a), TEM images (b) and EDS mappings (c-f) of Ti3C2Tx@PDA

2. FE-SEM images (a), TEM images (b) and EDS mappings (c-f) of Ti₃C₂T_x@PDA

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3. XRD patterns of samples (a) and corresponding drawing of partial enlargement (b)

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4. Raman spectra (a), FT-IR spectra (b), Nitrogen sorption isotherms (c) and pore size distributions (d) of samples

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5. CV curves at different scan rate (a) and GCD curves at different current densities (b) of Ti₃C₂T_x@α-MnO₂ nanowires

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6. Electrochemical performance of samples

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Sample	R_e/Ω	C_dl/μF	R_ct/Ω	Z_w/(Ω^-1·s^1/2)	C_L/mF
Ti₃C₂T_x	2.043	12.04	0.4575	0.04459	39.82
Ti₃C₂T_x@PDA	2.397	43.26	0.4671	0.09429	65.16
Ti₃C₂T_x@δ-MnO₂ nanofragments	2.678	187.1	1.333	0.0999	343.5
Ti₃C₂T_x@α-MnO₂ nanorods	2.989	31.7	1.358	0.04104	263.1
Ti₃C₂T_x@α-MnO₂ nanoflowers	2.304	20.89	1.925	0.001071	65.97
Ti₃C₂T_x@α-MnO₂ nanowires	2.592	135.3	1.268	0.1547	373.5

Table 1. Details of various parameters based Spectroscopy Impedance on the equivalent circuit derived by fitting Electrochemical (EIS) data of prepared samples

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