Sponge-like polypyrrole–nanofibrillated cellulose aerogels: synthesis and application

Abstract

Nowadays materials for soft electronics are in high demand; among the different forms of conducting materials, conducting gels have become promising candidates. They provide both the electrical conductivity and mechanical...

Cellulose Nanofibers/PEDOT:PSS Conductive Aerogel for Pressure Sensing Prepared by a Facile Freeze-Drying Method

“…As shown in the FTIR spectra, the hydroxyl signal peak of the composite aerogel was broadened at around 3300 cm –1 , compared to pure CNF aerogel and pure PEDOT:PSS aerogel (Figure a), confirming the generation of hydrogen bonds . As shown in Figure b, 1412 and 1590 cm –1 of the pure CNF aerogel are the characteristic peaks of the stretching vibration of COO – . Moreover, 951 and 1037 cm –1 of the PEDOT:PSS aerogel are the SOH stretching vibration and SO stretching vibration on PSS in PEDOT:PSS, respectively.…”

“…38 As shown in Figure 4b, 1412 and 1590 cm −1 of the pure CNF aerogel are the characteristic peaks of the stretching vibration of COO − . 55 Moreover, 951 and 1037 cm −1 of the PEDOT:PSS aerogel are the S�OH stretching vibration and S�O stretching vibration on PSS in PEDOT:PSS, 56 respectively. These characteristic peaks are evident in the aerogels CP-0 and CP-2.…”

Designing free-standing 3D lamellar/pillared RGO/CNTs aerogels with ultra-high conductivity and compressive strength for elastic energy devices

“…3c). [31][32][33][34][35][36][37][38][39] The high electrical conductivity of RGO/CNTs composite aerogels can be attributed to that the conductive pillared CNTs efficiently connected layered RGO sheets, greatly enhancing the ability of charge transport. The mechanical properties of RGO and RGO/CNTs aerogels were also evaluated.…”

“…As a result, the as-prepared free-standing RGO/CNTs aerogel showed an electrical conductivity of 214.7 S m −1 , which was much higher than those of aerogel materials reported previously. [31][32][33][34][35][36][37][38][39] Due to the strong connection between the CNTs and graphene layers, the compressive strength of the asprepared RGO/CNTs aerogel was as high as 73.6 kPa, much superior to other studies. 22,[40][41][42][43][44][45][46][47][48][49] With using the RGO/CNTs aerogel-derived composite electrodes, a highly compressible energy storage supercapacitor device (Fig.…”

Polypyrrole micro/nanostructures and their soft materials in versatile forms: construction and applications

“…The dispersion of conducting polymers provides an effective way to prepare evenly mixed composites or coatings. For instance, repeated freeze-thaw cycles of PANI or PPy dispersions stabilized with PVA is a facile way to prepare PANI or PPy cryogels, 40,41 respectively. Wallace and co-workers developed a series of PPy nanodispersion formulations for injection printing.…”