Abstract:The key preponderance of supramolecular self-assembly strategy is its ability to precisely assemble various functional units at the molecular level through non-covalent bonds to form multifunctional materials. Supramolecular-derived materials merit...
“…Polyoxometalate-based coordination polymers (POMCPs), constructed by polyoxomethodes (POMs) and transition metal complexes (TMCs) as secondary structural units, are considered to be promising candidates as negative electrode materials. [6][7][8] It exhibits structural flexibility, fascinating topology, rapidly reversible redox reaction and high theoretical capacity value due to the synergistic effect of two components and the advantages of combining two parts. [9][10][11] What's more, a wide negative voltage window is displayed perfectly by POMCPs similar to that of the POMs, such as [SiW 6À , and [VW 12 O 40 ] 4À .…”
The key to obtain supercapacitors with high energy density is rational design and synthesis of negative electrode materials. Herein, a new type of polyoxometalate‐based coordination polymer was prepared by one‐step hydrothermal method. Polymer 1 with honeycomb two‐dimensional network structure is beneficial to improve electrical conductivity and storage capacity because of its π‐π stacking interaction. Ti3C2Tx, an MXene material with excellent electrical conductivity, was mixed with compound 1, which has rich redox reactions. As expected, 1@Ti3C2Tx exhibited outstanding specific capacitance (768.7 F g‐1 at 8 A g‐1), which is superior to many materials. In addition, the hybrid material also showed good cycle stability (88.1% capacity retention after 1000 cycles). This work provides an effective way to develop hybrid electrode materials based on polyoxometalate‐based coordination polymers as supercapacitors. In addition, using 1@Ti3C2Tx as the negative electrode material and celery leaf carbon paper as the positive electrode material, the asymmetric supercapacitor device is fabricated. When the power density is 629.7 W kg‐1, the energy density is 9.2 Wh kg‐1, which indicates that it has a good application prospect.
“…Polyoxometalate-based coordination polymers (POMCPs), constructed by polyoxomethodes (POMs) and transition metal complexes (TMCs) as secondary structural units, are considered to be promising candidates as negative electrode materials. [6][7][8] It exhibits structural flexibility, fascinating topology, rapidly reversible redox reaction and high theoretical capacity value due to the synergistic effect of two components and the advantages of combining two parts. [9][10][11] What's more, a wide negative voltage window is displayed perfectly by POMCPs similar to that of the POMs, such as [SiW 6À , and [VW 12 O 40 ] 4À .…”
The key to obtain supercapacitors with high energy density is rational design and synthesis of negative electrode materials. Herein, a new type of polyoxometalate‐based coordination polymer was prepared by one‐step hydrothermal method. Polymer 1 with honeycomb two‐dimensional network structure is beneficial to improve electrical conductivity and storage capacity because of its π‐π stacking interaction. Ti3C2Tx, an MXene material with excellent electrical conductivity, was mixed with compound 1, which has rich redox reactions. As expected, 1@Ti3C2Tx exhibited outstanding specific capacitance (768.7 F g‐1 at 8 A g‐1), which is superior to many materials. In addition, the hybrid material also showed good cycle stability (88.1% capacity retention after 1000 cycles). This work provides an effective way to develop hybrid electrode materials based on polyoxometalate‐based coordination polymers as supercapacitors. In addition, using 1@Ti3C2Tx as the negative electrode material and celery leaf carbon paper as the positive electrode material, the asymmetric supercapacitor device is fabricated. When the power density is 629.7 W kg‐1, the energy density is 9.2 Wh kg‐1, which indicates that it has a good application prospect.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.