Facile synthesis of hollow Sn–Co@PMMA nanospheres as high performance anodes for lithium-ion batteries via galvanic replacement reaction and in situ polymerization

Magnesium Hydride Nanoparticles Self-Assembled on Graphene as Anode Material for High-Performance Lithium-Ion Batteries

“…Those favorable interactions between PMMA and GMH composite not only ensure that active materials could be tightly attached to current collector but also buffer the volume expansion and internal strain of active materials, which is beneficial to maintain the structural integrity of electrode. Third, as to PMMA itself, it has been widely reported as a binder, polymer electrolyte, and separator for LIBs, because it helps to improve the rate of charge/lithium ion transfer and offers a beneficial conductivity environment. − For one thing, PMMA exhibits high affinity toward liquid electrolytes in the presence of ester functional groups, which contributes to a high ionic conductivity and low interfacial impedance; for another, protons in the ester groups of the PMMA molecule are highly active in coordinating with lithium ions. As a result, lithium ions can dissociate from their complexation sites and conjugate with new sites in electrolyte solution effectively.…”

Co3O4–SnO2 Hollow Heteronanostructures: Facile Control of Gas Selectivity by Compositional Tuning of Sensing Materials via Galvanic Replacement

“…Various physicochemical techniques have been used to prepare heteronanostructures, which include metal–organic vapor phase epitaxy, sputtering, atomic layer deposition, solution-based coating, and galvanic replacement . Among these, galvanic replacement is a facile chemical route to prepare heteronanostructures by replacing the host cations with other cations of stronger ionization tendency dissolved in solution . Oxide/metal/organic heteronanostructures prepared by galvanic replacement have been applied to electrode materials for Li ion batteries, , electrochemical biosensors, and electrocatalysts. , Uniform and gradual substitution that minimizes changes in host nanoarchitectures is advantageous for manufacturing highly gas accessible oxide heteronanostructures and for controlling the composition.…”

“…Among these, galvanic replacement is a facile chemical route to prepare heteronanostructures by replacing the host cations with other cations of stronger ionization tendency dissolved in solution . Oxide/metal/organic heteronanostructures prepared by galvanic replacement have been applied to electrode materials for Li ion batteries, , electrochemical biosensors, and electrocatalysts. , Uniform and gradual substitution that minimizes changes in host nanoarchitectures is advantageous for manufacturing highly gas accessible oxide heteronanostructures and for controlling the composition. However, to the best knowledge of the authors, galvanic replacement has not been widely used to produce high-performance gas sensors.…”

Synthesis of Sn–Co@PMMA nanowire arrays by electrodeposition and in situ polymerization as a high performance lithium-ion battery anode

“…S4 †) also prove that the Sn-Co@PMMA NWs could maintain their pristine morphology and the SEI lm formed around PMMA layer is not ruptured aer cycling, which is consistent with our previous research. 39 However, the bare Sn-Co NWs suffer a repeated breaking and formation of thick SEI layer during cycling leading to loss of cyclic lithium, consumption of electrolyte, and compromised electrical contact between active materials, and hence, continuous capacity fading. These results clearly demonstrate that the uniform coating layer of PMMA can effectively suppress the electrode from ination and pulverization and consequently result in the formation of a stable and thin SEI layer on the surface of the cycled electrode.…”