Highly Electroconductive Nanopapers Based on Nanocellulose and Copper Nanowires: A New Generation of Flexible and Sustainable Electrical Materials
authors Pinto, RJB; Martins, MA; Lucas, JMF; Vilela, C; Sales, AJM; Costa, LC; Marques, PAAP; Freire, CSR
nationality International
journal ACS APPLIED MATERIALS & INTERFACES
author keywords copper nanowires; nanofibrillated cellulose; flexible nanopapers; electrical conductivity; sustainable nanomaterials
keywords EFFICIENT HETEROGENEOUS CATALYST; GRAPHENE COMPOSITE FILM; CELLULOSE NANOFIBERS; TRANSPARENT; NANOPARTICLES; OXIDATION; CONDUCTIVITY; ELECTRONICS; FABRICATION; NANOTUBES
abstract Nowadays, the development of sustainable high-performance functional nanomaterials is in the spotlight. In this work, we report the preparation of a new generation of flexible and high electroconductive nanopapers based on nanofibrillated cellulose (NFC) and copper nanowires (CuNWs). Homogeneous red brick color nanopapers (thickness 30.2-36.4 mu m) were obtained by mixing different amounts of NFC aqueous suspensions and CuNWs (1, 5, 10, 20, and 50 wt %), followed by vacuum filtration and drying. scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) analysis confirmed the incorporation of the different amounts of CuNWs, and their uniform and random distribution. All of the nanomaterials displayed good mechanical properties, viz., Young's modulus = 2.62-4.72 GPa, tensile strength = 30.2-70.6 MPa, and elongation at break = 2.3-4.1% for the nanopapers with 50 and 1 wt % of CuNWs mass fraction, respectively. The electrical conductivity of these materials strongly depends on the CuNW content, attaining a value of 5.43 x 10(4) S.m(-1) for the nanopaper with a higher mass fraction. This is one of the highest values reported so far for nanocellulose-based conductive materials. Therefore, these nanopapers can be seen as an excellent inexpensive and green alternative to the current electroconductive materials for applications in electronic devices, energy storage, or sensors.
publisher AMER CHEMICAL SOC
issn 1944-8244
isbn 1944-8252
year published 2020
volume 12
issue 30
beginning page 34208
ending page 34216
digital object identifier (doi) 10.1021/acsami.0c09257
web of science category Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
subject category Science & Technology - Other Topics; Materials Science
unique article identifier WOS:000557854700079
  ciceco authors
  impact metrics
journal analysis (jcr 2019):
journal impact factor 8.758
5 year journal impact factor 8.901
category normalized journal impact factor percentile 86.33
dimensions (citation analysis):
altmetrics (social interaction):



 


Apoio

1suponsers_list_ciceco.jpg