Pomegranate-like mesoporous microspheres assembled by N-doped carbon coated Fe1−S nanocrystals for high-performance lithium storage

A facile precursor route towards the synthesis of Fe1−xS@NC-rGO composite anode materials for high-performance lithium-ion batteries

“…5 and Table S2. † 10,[13][14][15]19,[21][22][23][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51] Besides, the morphology of the Fe 1−x S@NC-rGO-2 electrode after 1700 cycles at 1 A g −1 has also been investigated using scanning electron microscopy. As shown in Fig.…”

“…This effectively prevents the self-accumulation of ultrafine Fe 1− x S subunits during the electrochemical reaction and prolongs their cycle life. 21 Guo et al have utilized a simple in situ hydrothermal process to prepare rGO-coated Fe 1− x S particles, and the resulting Fe 1− x S@rGO shows excellent lithium storage capacity. The reversible capacity is 907.8 mA h g −1 after 200 cycles at a current density of 0.1 A g −1 .…”

Pseudocapacitive sodium storage of Fe1−xS@N-doped carbon for low-temperature operation

“…For the high-resolution S 2p XPS spectrum (Fig. 2f), three major peaks at 168.1, 163.8, and 161.1 eV are attributed to SO x , S n 2− , and S 2− [32,33], respectively. The presence of SO x suggests the partial surface oxidation of Fe 1−x S@NC because of the inevitable contact with the air.…”

In situ synthesis of morphology-controlled MoOx/Fe1−xS bifunctional catalysts for high-efficiency and stable alkaline water splitting

“…S4 †). 35,36 Moreover, the ultrathin nanosheets have pores of about 4-7 nm, which is conducive to increasing the specific surface area of the catalyst and the contact area between the catalyst and the electrolyte during the reaction process, thus increasing the number of effective active sites in the electrocatalytic reaction. The corresponding elemental mapping images show a uniform spatial distribution of Fe, Mo, O and S elements in MoO x /Fe 1−x S/IF microspheres (Fig.…”