POM-based metal-organic framework/reduced graphene oxide nanocomposites with hybrid behavior of battery-supercapacitor for superior lithium storage

Polyoxometalates: Tailoring metal oxides in molecular dimension toward energy applications

“…The interactions between graphene derivatives and polyoxomolybdates are extensively proved for energy storage purposes. H 5 PMo 10 V 2 O 40 forms nanocomposites with graphene oxide, demonstrating superior lithium storing properties . Composites based on PMo 12 /polyaniline/multi‐wall carbon nanotubes are fabricated for restraining the charge storing species, and PMo 10 ‐based polyoxometalate is used to polymerize dopamine, resulting in homogenous composites and application in lithium‐ion battery with good stability without the aid of binder materials .…”

“…H 5 PMo 10 V 2 O 40 forms nanocomposites with graphene oxide, demonstrating superior lithium storing properties. 286 Composites based on PMo 12 /polyaniline/multi-wall carbon nanotubes are fabricated for restraining the charge storing species, 287 and PMo 10 -based polyoxometalate is used to polymerize dopamine, resulting in homogenous composites and application in lithium-ion battery with good stability without the aid of binder materials. 288 The conjugation between Keggin-type H 3 PMo 12 O 40 and the graphene oxide is improved by the pyrrole bridge, leading to efficient polyoxometalate anchoring for redox performance.…”

Insight into the Anchoring and Catalytic Effects of VO2 and VS2 Nanosheets as Sulfur Cathode Hosts for Li–S Batteries

“…Moreover, these carbon HMs, with unique micron/nano architectures,n ot only mitigate the largev olume expansion of Sd uringl ithiation but also suppress LiPSs dissolution.N evertheless, carbon cannotb ec onsidered an excellent HM because of its weak physicalc onfinement ability between polar LiPSs and nonpolar carbon. [29] Recently,m any other types of HMs, such as heteroatom-doped carbons, [30,31] transition-metal oxides [4,10,32,33] /sulfides [16,[34][35][36][37][38] /nitrides [12,13] /carbides, [9,14,[39][40][41] and metal-organic frameworks, [1,[42][43][44] have remarkably improved the electrochemical performance of Li-S batteries because of the strongchemical interaction between LiPSs and HMs. In addition, the catalyt-Transition metal oxidesa nd sulfides have been intensively investigated as host materials fort he Sc athode in lithium-sulfur (Li-S) batteries; however,t he distinctions between them in battery operation have remained unclear.I nt his study,V O 2 and VS 2 nanosheets were systematically studied as host materials for Li-S batteries through theoretical calculations and experimental testing.…”

Recent advancements in metal organic framework based electrodes for supercapacitors

“…When compared with traditional porous materials, MOFs have the advantages of diverse scaffold structure, adjustable pore size, large SSA, and an abundance of active sites. Currently, MOFs have been widely used in gas adsorption and separation, catalysis, drug delivery, imaging, and sensors [31,34,35]. Interest in this new type of porous material is growing rapidly as its potential application in many fields is becoming realized.…”