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Effect of SDS and PVP surfactants on synthesis of a flower-shaped porous Ni-MOFBDC@C as electrode materials for high performance supercapacitor

Ningkuan Zhong,Weiyi Wu,Fen Xu,Lixian Sun,Yi Wu,Jianhao Lao,Xiaohui Qin,Yu Wang,Xiangpeng Ding,Aicheng Peng,Jincheng Liu,Dingding Yuan

In this work, a flower-like porous Ni-MOF BDC @C (MOFs@C SP ) has been synthesized successfully on carbon material through two surfactants (SDS and PVP) control by means of a facile solvothermal method. SEM results reveal that the MOFs@C SP is the porous material that bends and folds into the flower shape of Ni-MOF nano sheets orientated grown on the carbon materials. The results also illustrate that the carbon material plays the role of template and conductive reinforcing agent. Under the action of carbon and double surfactants, the MOFs@C SP has the highest specific capacity and the lowest resistance of charge transfer in the four Ni-MOF BDC materials (namely MOFs@C SP , MOFs@C P , MOFs@C S and Ni-MOF BDC ). That is the specific capacity of MOFs@C SP is 1350.1 F g -1 at 1 A g -1 , corresponding to resistance of charge transfer of 0.3 Ω. Moreover, the energy density of the asymmetric device assembled by MOFs@C SP is 42.9 Wh kg -1 under 813.1 W kg -1 .