The effect of etching environment (opened or closed) on the synthesis and electrochemical properties of V2C MXene was studied. V2C MXene samples were synthesized by selectively etching of V2AlC at 90 °C in two different environments: opened environment (OE) in oil bath pans under atmosphere pressure and closed environment (CE) in hydrothermal reaction kettles under higher pressures. In OE, only NaF (sodium fluoride) + HCl (hydrochloric acid) etching solution can be used to synthesize highly pure V2C MXene. However, in CE, both LiF (lithium fluoride) + HCl and NaF+HCl etchant can be used to prepare V2C MXene. Moreover, the V2C MXene samples made in CE had higher purity and better-layered structure than those made in OE. Although the purity of V2C obtained by LiF+HCl is lower than that of V2C obtained using NaF+HCl, it shows better electrochemical performance as anodes of lithium-ion batteries (LIBs). Therefore, etching in CE is a better method for preparing highly pure V2C MXene, which provides a reference for expanding the synthesis methods of V2C with better electrochemical properties.
Naguib M, Kurtoglu M, Presser V, et al. Two-dimensional nanocrystals produced by exfoliation of Ti3AlC2. Adv Mater 2011, 23: 4248–4253.
Naguib M, Mashtalir O, Carle J, et al. Two-dimensional transition metal carbides. ACS Nano 2012, 6: 1322–1331.
Ling C, Tian WB, Zhang P, et al. Synthesis and formation mechanism of titanium lead carbide. J Adv Ceram 2018, 7: 178–183.
Yang DX, Zhou Y, Yan XH, et al. Highly conductive wear resistant Cu/Ti3SiC2(TiC/SiC) co-continuous composites via vacuum infiltration process. J Adv Ceram 2020, 9: 83–93.
Gong YM, Tian WB, Zhang PG, et al. Slip casting and pressureless sintering of Ti3AlC2. J Adv Ceram 2019, 8: 367–376.
Jin S, Wang ZT, Du YQ, et al. Hot-pressing sintering of double-A-layer MAX phase Mo2Ga2C. J Inorg Mater 2020, 35: 41–15.
Li ZY, Wang LB, Sun DD, et al. Synthesis and thermal stability of two-dimensional carbide MXene Ti3C2. Mater Sci Eng: B 2015, 191: 33–40.
Liu FF, Zhou AG, Chen JF, et al. Preparation and methane adsorption of two-dimensional carbide Ti2C. Adsorption 2016, 22: 915–922.
Hu MM, Hu T, Cheng RF, et al. MXene-coated silk-derived carbon cloth toward flexible electrode for supercapacitor application. J Energy Chem 2018, 27: 161–166.
Xia QX, Shinde NM, Zhang TF, et al. Seawater electrolyte-mediated high volumetric MXene-based electrochemical symmetric supercapacitors. Dalton Trans 2018, 47: 8676–8682.
Gao YP, Wang LB, Li ZY, et al. Electrochemical performance of Ti3C2 supercapacitors in KOH electrolyte. J Adv Ceram 2015, 4: 130–134.
Xia QX, Shinde NM, Yun JM, et al. Bismuth oxychloride/MXene symmetric supercapacitor with high volumetric energy density. Electrochimica Acta 2018, 271: 351–360.
Shen CJ, Wang LB, Zhou AG, et al. Synthesis and electrochemical properties of two-dimensional RGO/Ti3C2Tx nanocomposites. Nanomaterials 2018, 8: 80–91.
Shen CJ, Wang LB, Zhou AG, et al. MoS2-decorated Ti3C2 MXene nanosheet as anode material in lithium-ion batteries. J Electrochem Soc 2017, 164: A2654–A2659.
Wang ZX, Xu Z, Huang HC, et al. Unraveling and regulating self-discharge behavior of Ti3C2Tx MXene-based supercapacitors. ACS Nano 2020, 14: 4916–4924.
Xie YT, Zhang HT, Huang HC, et al. High-voltage asymmetric MXene-based on-chip micro-supercapacitors. Nano Energy 2020, 74: 104928–104937.
Huang HC, He JQ, Wang ZX, et al. Scalable, and low-cost treating-cutting-coating manufacture platform for MXene-based on-chip micro-supercapacitors. Nano Energy 2020, 69: 104431–104437.
Sun DD, Hu QK, Chen JF, et al. Structural transformation of MXene (V2C, Cr2C, and Ta2C) with O groups during lithiation: A first-principles investigation. ACS Appl Mater Interfaces 2016, 8: 74–81.
Naguib M, Halim J, Lu J, et al. New two-dimensional niobium and vanadium carbides as promising materials for Li-ion batteries. J Am Chem Soc 2013, 135: 15966–15969.
Xiao B, Li YC, Yu XF, et al. Penta-graphene: A promising anode material as the Li/Na-ion battery with both extremely high theoretical capacity and fast charge/discharge rate. ACS Appl Mater Interfaces 2016, 8: 35342–35352.
Yang ZP, Qin TT, Niu YT, et al. Flexible visible-light-driven photoelectrochemical biosensor based on molecularly imprinted nanoparticle intercalation-modulated graphene fiber for ultrasensitive urea detection. Carbon 2020, 157: 457–465.
Zhang XL, Zhang J, Leng B, et al. Photodetectors: Enhanced performances of PVK/ZnO nanorods/graphene heterostructure UV photodetector via piezo-phototronic interface engineering. Adv Mater Interfaces 2019, 6: 1970145–1970153.
Wang LB, Liu DR, Lian WW, et al. The preparation of V2CTx by facile hydrothermal-assisted etching processing and its performance in lithium-ion battery. J Mater Res Technol 2020, 9: 984–993.
Dall’Agnese Y, Taberna PL, Gogotsi Y, et al. Two-dimensional vanadium carbide (MXene) as positive electrode for sodium-ion capacitors. J Phys Chem Lett 2015, 6: 2305–2309.
Zhou J, Gao SH, Guo ZL, et al. Ti-enhanced exfoliation of V2AlC into V2C MXene for lithium-ion battery anodes. Ceram Int 2017, 43: 11450–11454.
Liu FF, Zhou J, Wang SW, et al. Preparation of high-purity V2C MXene and electrochemical properties as Li-ion batteries. J Electrochem Soc 2017, 164: A709–A713.
He HT, Xia QX, Wang BX, et al. Two-dimensional vanadium carbide (V2CTx) MXene as supercapacitor electrode in seawater electrolyte. Chin Chem Lett 2020, 31: 984–987.
Wu M, Wang BX, Hu QK, et al. The synthesis process and thermal stability of V2C MXene. Materials 2018, 11: 2112–2122.
Nan JX, Guo X, Xiao J, et al. Nanoengineering of 2D MXene-based materials for energy storage applications. Small 2019: 1902085.
Wang LB, Zhang H, Wang B, et al. Synthesis and electrochemical performance of Ti3C2Tx with hydrothermal process. Electron Mater Lett 2016, 12: 702–710.
Naguib M, Mashtalir O, Lukatskaya MR, et al. One-step synthesis of nanocrystalline transition metal oxides on thin sheets of disordered graphitic carbon by oxidation of MXenes. Chem Commun 2014, 50: 7420–7423.
Chen J, Chen K, Tong DY, et al. CO2 and temperature dual responsive “Smart” MXene phases. Chem Commun 2015, 51: 314–317.
Muckley ES, Naguib M, Wang HW, et al. Multimodality of structural, electrical, and gravimetric responses of intercalated MXenes to water. ACS Nano 2017, 11: 11118–11126.
Xie XQ, Zhao MQ, Anasori B, et al. Porous heterostructured MXene/carbon nanotube composite paper with high volumetric capacity for sodium-based energy storage devices. Nano Energy 2016, 26: 513–523.
Li M, Ding J, Xue JM. Mesoporous carbon decorated graphene as an efficient electrode material for supercapacitors. J Mater Chem A 2013, 1: 7469–7476.
Zhu H, Yin J, Wang XL, et al. Microorganism-derived heteroatom-doped carbon materials for oxygen reduction and supercapacitors. Adv Funct Mater 2013, 23: 1305–1312.
Xie Y, Naguib M, Mochalin VN, et al. Role of surface structure on Li-ion energy storage capacity of two-dimensional transition-metal carbides. J Am Chem Soc 2014, 136: 6385–6394.
Hu JP, Xu B, Ouyang C, et al. Investigations on V2C and V2CX2 (X = F, OH) monolayer as a promising anode material for Li ion batteries from first-principles calculations. J Phys Chem C 2014, 118: 24274–24281.
Tang Q, Zhou Z, Shen PW. Are MXenes promising anode materials for Li ion batteries? Computational studies on electronic properties and Li storage capability of Ti3C2 and Ti3C2X2 (X = F, OH) monolayer. J Am Chem Soc 2012, 134: 16909–16916.
This study was supported by the National Natural Science Foundation of China (51772077), the Program for Innovative Research Team (in Science and Technology) in University of Henan Province (19IRTSTHN027), the Fundamental Research Funds for the Universities of Henan Province (NSFRF200101), the China Postdoctoral Science Foundation (2019M652537), the Henan Postdoctoral Foundation (19030065), the Henan Province Key Science and Technology Research Projects (202102310628), the Foundation of Henan Educational Committee (20B430006), and the Doctoral Foundation of Henan Polytechnic University (B2019-41).
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Wu, M., He, Y., Wang, L. et al. Synthesis and electrochemical properties of V2C MXene by etching in opened/closed environments. J Adv Ceram (2020). https://doi.org/10.1007/s40145-020-0411-8
- V2C MXene
- etching environment
- oil bath pan
- hydrothermal reaction kettle
- lithium-ion battery (LIB)