fig16

Figure 16. (A) Experimental procedure for the synthesis of the selenium nanowire/CNT composite electrode, with the SEM image showing the morphology of the composite electrode, (B) Cycling performance of the TSeCE at 1 C rate, (C) Rate performance of the TSeCE^[97], Copyright 2019, Wiley-VCH. (D) Formation mechanism of bimodal porous nitrogen-doped carbon nanofiber homogeneously filled with chain-like Se, (E) cycling performance of BP-CNF/Se and M-CNF/Se at a current density of 0.5 C, (F) Rate performances with the coulombic efficiencies^[91], Copyright 2018, The Royal Society of Chemistry. (G) Schematic illustration of the formation of the PANI@Se/C-G composite, (H) Rate capability at various current densities between 1.0 and 3.0 V for Se/C, PANI@Se/C, and PANI@Se/C-G, (I) Cycle performance at a current density of 0.2 C between 1.0 and 3.0 V^[101]. Copyright 2017, Tsinghua University Press and Springer.