“…As present in Table 1, the asprepared pure CoTiO 3 micro-prisms also deliver significantly higher capacity and better rate capability than typical carbon materials [9][10][11], and pure TiO 2 anode materials, meanwhile, show similar or even better electrochemical performance with N, Mo, Sn doped TiO 2 and ultra-small sized TiO 2 [13][14][15][16][17][18][19][20][21][22][23][24]. The better electrical conductivity of CoTiO 3 than NiTiO 3 , TiO 2 , because of the narrower band gap of CoTiO 3 (2.34 eV) than NiTiO 3 (3.02 eV) and TiO 2 (3.3 eV), should be one of the reason responsible for the much enhanced sodium ion storage performance [31,32]. Comparing to the reported counterparts, NiTiO 3 nanoparticle and micro-prisms, the initial capacity of CoTiO 3 are lower than reported NiTiO 3 [26,27], however, the preserved charge capacity of CoTiO 3 at 10 C after 2,000 cycles still kept 62.6 mA h g −1 , which is much higher than 51.1 mA h g −1 of reported NiTiO 3 [27].…”