Layer-by-layer inkjet printing GO film and Ag nanoparticles supported nickel cobalt layered double hydroxide as a flexible and binder-free electrode for supercapacitors.

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ID: 54356
2019
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Abstract
Inkjet printing is an attractive technique in the field of flexible electronics due to the direct writing, digital controls and non-contact operation process. In this work, we successfully printed graphite oxide and Ag nanoparticles on the substrate of flexible carbon cloth to form a flexible, conductive and hydrophilic layer, which could be used as a new substrate with an electron transport layer of large surface area. In addition, Ni-Co LDH nanosheets as the main active materials were synthesized for improving the electrochemical activity via a convenient electrochemical deposition method. The binder-free Ni-Co LDH/Ag/rGO@CC electrode exhibits outstanding electrochemical performance along with a high capacity of 173 mA h g at 1 A g. Moreover, an asymmetric supercapacitor (ASC) was assembled with Ni-Co LDH/Ag/rGO@CC electrode as the positive electrode materials and activated carbon coated CC as the negative electrode materials, showing a high capacity of 95 mA h g at 0.6 A g, and maximum energy density of 76 Wh kg at a power density of 480 W kg.
Reference Key
li2019layerbylayerjournal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Li, Xueying;Zhao, Yunhe;Yu, Jing;Liu, Qi;Chen, Rongrong;Zhang, Hongsen;Song, Dalei;Li, Rumin;Liu, Jingyuan;Wang, Jun;
Journal Journal of colloid and interface science
Year 2019
DOI
S0021-9797(19)31102-6
URL
Keywords
inkjet printing Supercapacitor graphene oxide ag nanoparticles nickel-cobalt layered double hydroxide

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