Electrochemically Induced High Capacity Displacement Reaction of PEO/MoS₂/Graphene Nanocomposites with Lithium

Abstract

10000 mA g − 1 , the capacity can be restored to 654 mAh g − 1 at a recovery rate of 50 mA g − 1 , which is indicative of excellent rate performance.

Graphene/polymer composites for energy applications

“…The rGO sheets and PEO bestow this composite with electrical and ionic conductivities, respectively. 27 Compared with the LIBs based on pure MoO 2 , the LIBs based on the composite exhibited an increased reversible capacity and improved rate performance.…”

“…Organic solar cells with heterojunction structures and DSSCs are regarded as promising alternatives. As a novel and unique member of the carbon nanomaterials family, graphene is an attractive material for fabricating transparent electrodes 27,43,141 and improving the performances of dyesensitized 15,142,143 and heterojunction solar cells. [108][109][110] Transparent Conducting Electrodes TCEs are a key component of optoelectronic devices.…”

“…To date, various graphene composites with insulating or conducting polymers (CPs) have been prepared through noncovalent 22 or covalent approaches. 24 They have also been applied as electrodes for supercapacitors and lithium ion batteries (LIBs), [25][26][27][28][29] counter electrodes of dye-sensitized solar cells (DSSCs), 15,30,31 and transparent conducting electrodes (TCEs) 32,33 or active layers of organic solar cells, 34 catalytic electrodes, and polymer electrolyte membranes of fuel cells. [35][36][37] This review focuses on summarizing the recent advances in the synthesis of graphene/polymer composites and their energy applications.…”

Critical Insight into the Relentless Progression Toward Graphene and Graphene‐Containing Materials for Lithium‐Ion Battery Anodes

“…1190 mAh g −1 after 100 cycles for an applied current of 100 mA g −1 (see Table 2 ). Another MoS 2 -graphene hybrid was also reported by J. P. Lemmon et al [ 132 ] In their work, RGO (2 wt%) was incorporated into a MoS 2 /polyethylene oxide (PEO) composite but, even if properly engineered, no real progresses in terms of cycling stability or gravimetric capacity were achieved with respect to the previous MoS 2 research efforts (see Table 2 ). A further graphene/metal sulfi de hybrid (i.e., RGO/CdS [ 133 ] ), alongside with several conversion-(i.e., RGO/ NiO, [ 134 ] RGO/MoO 2 , [ 135 ] RGO/Mn 2 Mo 3 O 8 , [ 136 ] RGO/MnO 2 , [ 137 ] polymer-functionalized RGO/MnO 2 , [ 138 ] solvothermally produced graphene/MnO 2 , [ 139 ] N-doped RGO/VN [ 140 ] and RGO/ CeO 2 [ 141 ] ), and alloying-(RGO/SnSe 2 , [ 142 ] RGO/NiSb [ 143 ] and RGO/FeSb 2 [ 143 ] ) based composites were also proposed for the fi rst time.…”

“…In all these cases, however, only modest improvements (especially in terms of cycling stability) were observed with respect to the reports published few years before. Although several publications reported the active material mass loadings, [ 58,60,65,129,130,132,138,142,147,168,172,[177][178][179][180] as well as the tap density of the active material [ 57 ] and the density of the electrode, [ 63 ] no considerations about volumetric capacity were made. Some progression on composite anodes based on graphene and germanium (i.e., alloy material), MFe 2 O 4 (M = Co, Ni, Cu) and M x S y (M = Sn, Sb, In) were reported in 2012.…”