Flexible Freestanding MoO3-x-Carbon Nanotubes-Nanocellulose Paper Electrodes for Charge-Storage ApplicationsShow others and affiliations
2019 (English)In: ChemSusChem, ISSN 1864-5631, E-ISSN 1864-564X, Vol. 12, no 23, p. 5157-5163Article in journal (Refereed) Published
Abstract [en]
Herein, a one‐step synthesis protocol was developed for synthesizing freestanding/flexible paper electrodes composed of nanostructured molybdenum oxide (MoO3−x) embedded in a carbon nanotube (CNT) and Cladophora cellulose (CC) matrix. The preparation method involved sonication of the precursors, nanostructured MoO3−x, CNTs, and CC with weight ratios of 7:2:1, in a water/ethanol mixture, followed by vacuum filtration. The electrodes were straightforward to handle and possessed a thickness of approximately 12 μm and a mass loading of MoO3−x–CNTs of approximately 0.9 mg cm−2. The elemental mapping showed that the nanostructured MoO3−x was uniformly embedded inside the CNTs–CC matrix. The MoO3−x–CNTs–CC paper electrodes featured a capacity of 30 C g−1, normalized to the mass of MoO3−x–CNTs, at a current density of 78 A g−1 (corresponding to a rate of approximately 210 C based on the MoO3 content, assuming a theoretical capacity of 1339 C g−1), and exhibited a capacity retention of 91 % over 30 000 cycles. This study paves the way for the manufacturing of flexible/freestanding nanostructured MoO3−x‐based electrodes for use in charge‐storage devices at high charge/discharge rates.
Place, publisher, year, edition, pages
John Wiley & Sons, 2019. Vol. 12, no 23, p. 5157-5163
Keywords [en]
carbon nanotubes, charge storage applications, Cladophora cellulose, molybdenum oxide, paper electrodes
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-397673DOI: 10.1002/cssc.201902394ISI: 000495103400001PubMedID: 31613052OAI: oai:DiVA.org:uu-397673DiVA, id: diva2:1373977
Funder
Swedish Foundation for Strategic Research, EM16-0004Knut and Alice Wallenberg Foundation, KAW 2015.00432019-11-282019-11-282022-09-23Bibliographically approved