Designing interfacial chemical bonds towards advanced metal-based energy-storage/conversion materials

Chemically engineered alloy anode enabling fully reversible conversion reaction: design of a C–Sn-bonded aerofilm anode

“…Furthermore, the C–Sn shortens the electron transfer pathway while significantly decreasing the resistance of electron movement, and the result is that the as-prepared aerofilm anode affords more optimal electrochemical performance. 31 In addition, the Li-ion diffusion calculated from the electrochemical impedance spectroscopy (EIS) plots was found to be 1.542 × 10 −10 cm 2 s −1 for the C–Sn-bonded aerofilm anode, whereas ten-fold lower diffusion occurred for the C–O–Sn-bonded anode (Table S1†). Such an observation supports the efficient ionic and electronic transport that prevails in the C–Sn-bonded quantum SnO 2 aerofilm anode for improved electrochemical performances.…”

Surface engineering of anode materials for improving sodium-ion storage performance

“…The formation of chemical bonds between an electrochemically active material and a support can signicantly enhance structural stability of the active component against cycling. 115 The chemical bonds also play an important role in suppressing volume expansion of the electrochemically active material upon sodiation/desodiation. Generally, two types of composite materials have chemical bonds, namely the M-C/S and M-X-C types, where M represents P, Sn, Sb, etc., C stands for carbon, S stands for sulfur, and X represents N, O, etc.…”

Manipulating Interfaces of Electrocatalysts Down to Atomic Scales: Fundamentals, Strategies, and Electrocatalytic Applications

“…An in‐depth understanding on the structure–performance relationship between the bond and coordination environment of interfacial atoms and the catalytic performances would be conducive to the development of new interfacial catalysts. The bond and coordination of interfacial atoms can well regulate the electron redistribution, [ 104,120 ] alter the adsorption affinity of active sites, [ 121 ] and provide unique synergistic catalysis at the interface in facilitating complicated catalytic reactions. [ 66,122 ] In general, a certain atomic arrangement at the interface must give a specific bond and coordination of the involved atoms.…”