This yolk-shell HPC was further glued by an electron bridging structure consisting of carbon nanotube (CNT) decorated polyaniline (PANi), who can further suppress the shuttle effect benefit from PANi and afford a highly conductive network by affording a "point-to-plane" type electron transport ...
Their proposed functions are as follows: the doped N and S atoms (in the forms of pyridinic-N, pyrrolic-N and thiophenic-S species) act as electron-withdrawing atoms due to their higher electronegativity than C atoms, causing the nearby C atoms and C–O func- tional groups (carbonyl, ...
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4d), which are lower than those of the fresh cell, indicating great improvement of electron-transfer/Li+ diffusion pathways by the outer Pt nanoshell structure of S and inner conductive CNFs layer of Li–S batteries [47]. During the processes of discharge/charge, there is transformation ...
Fig. 13. (a) Schematic showing the orbital interaction and (b) Free energy diagram. Reproduced with permission [22] and copyrighted 2020, Wiley-VCH. Dual vacancies (DV) are responsible for balancing the hydrogen adsorption energy and facilitating electron transfer to promote HER. Liu et al. [...
[93]. Subsequently, the insulating Li2S islands will keep expanding and eventually proliferate into a layer at the interface, which will hinder the electron transfer at the S host interface, passivating the cathode and decreasing S utilization [94]. As vividly shown in Fig.4b,the conventional ...
Write the full electron configuration, number of valence electrons, and group number of the following atom. O, Na, Ca, Fe, Zn, Br Write the orbital diagram for sulfur and determine the number of unpaired electrons. Write the electron configuration for Mg2+. Write the main-shell electron conf...
DASCs exhibit not only metal-nitrogen bonds but also metal-metal bonds. Electron localization functions provide the visualization of lone pairs and bonding pairs, verifying the existence ofd-dorbital hybridization between the two metal sites (Fig.3a, b), which is mainly among orbitals betweendx2-...
Solid-state batteries are commonly acknowledged as the forthcoming evolution in energy storage technologies. Recent development progress for these rechargeable batteries has notably accelerated their trajectory toward achieving commercial feasibility. In particular, all-solid-state lithium–sulfur batteries (ASSL...
electron/ion transport conversion process [166,167]. Zhang et al. designed a new type of MgCo-LDH/ZIF-67 composite with yolk-shell structure as the cathode of lithium-sulfur battery in 2022. MgCo-LDH/ZIF-67 composite with yolk-shell structure was prepared on the basis of ZIF-67 particles...