PMID- 32878341
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201023
IS  - 2079-4991 (Print)
IS  - 2079-4991 (Electronic)
IS  - 2079-4991 (Linking)
VI  - 10
IP  - 9
DP  - 2020 Aug 31
TI  - Aerogels Based on Reduced Graphene Oxide/Cellulose Composites: Preparation and 
      Vapour Sensing Abilities.
LID - 10.3390/nano10091729 [doi]
LID - 1729
AB  - This paper reports on the preparation of cellulose/reduced graphene oxide (rGO) 
      aerogels for use as chemical vapour sensors. Cellulose/rGO composite aerogels 
      were prepared by dissolving cellulose and dispersing graphene oxide (GO) in 
      aqueous NaOH/urea solution, followed by an in-situ reduction of GO to reduced GO 
      (rGO) and lyophilisation. The vapour sensing properties of cellulose/rGO 
      composite aerogels were investigated by measuring the change in electrical 
      resistance during cyclic exposure to vapours with varying solubility parameters, 
      namely water, methanol, ethanol, acetone, toluene, tetrahydrofuran (THF), and 
      chloroform. The increase in resistance of aerogels on exposure to vapours is in 
      the range of 7 to 40% with methanol giving the highest response. The sensing 
      signal increases almost linearly with the vapour concentration, as tested for 
      methanol. The resistance changes are caused by the destruction of the conductive 
      filler network due to a combination of swelling of the cellulose matrix and 
      adsorption of vapour molecules on the filler surfaces. This combined mechanism 
      leads to an increased sensing response with increasing conductive filler content. 
      Overall, fast reaction, good reproducibility, high sensitivity, and good 
      differentiation ability between different vapours characterize the detection 
      behaviour of the aerogels.
FAU - Chen, Yian
AU  - Chen Y
AD  - Leibniz-Institut fur Polymerforschung Dresden e. V. (IPF), 01069 Dresden, 
      Germany.
AD  - Organic Chemistry of Polymers, Faculty of Chemistry and Food Chemistry, 
      Technische Universitat Dresden, 01062 Dresden, Germany.
FAU - Potschke, Petra
AU  - Potschke P
AUID- ORCID: 0000-0001-6392-7880
AD  - Leibniz-Institut fur Polymerforschung Dresden e. V. (IPF), 01069 Dresden, 
      Germany.
FAU - Pionteck, Jurgen
AU  - Pionteck J
AUID- ORCID: 0000-0003-2310-1106
AD  - Leibniz-Institut fur Polymerforschung Dresden e. V. (IPF), 01069 Dresden, 
      Germany.
FAU - Voit, Brigitte
AU  - Voit B
AUID- ORCID: 0000-0002-4531-691X
AD  - Leibniz-Institut fur Polymerforschung Dresden e. V. (IPF), 01069 Dresden, 
      Germany.
AD  - Organic Chemistry of Polymers, Faculty of Chemistry and Food Chemistry, 
      Technische Universitat Dresden, 01062 Dresden, Germany.
FAU - Qi, Haisong
AU  - Qi H
AD  - State Key Laboratory of Pulp and Paper Engineering, South China University of 
      Technology, Guangzhou 510640, China.
AD  - Guangdong Engineering Research Center for Green Fine Chemicals, South China 
      University of Technology, Guangzhou 510640, China.
LA  - eng
GR  - 201606240112/China Scholarship Council/
PT  - Journal Article
DEP - 20200831
PL  - Switzerland
TA  - Nanomaterials (Basel)
JT  - Nanomaterials (Basel, Switzerland)
JID - 101610216
PMC - PMC7560231
OTO - NOTNLM
OT  - aerogel
OT  - cellulose
OT  - conductive polymer composite
OT  - reduced graphene oxide
OT  - vapour sensor
COIS- The authors declare no conflict of interest.
EDAT- 2020/09/04 06:00
MHDA- 2020/09/04 06:01
PMCR- 2020/08/31
CRDT- 2020/09/04 06:00
PHST- 2020/07/22 00:00 [received]
PHST- 2020/08/25 00:00 [revised]
PHST- 2020/08/28 00:00 [accepted]
PHST- 2020/09/04 06:00 [entrez]
PHST- 2020/09/04 06:00 [pubmed]
PHST- 2020/09/04 06:01 [medline]
PHST- 2020/08/31 00:00 [pmc-release]
AID - nano10091729 [pii]
AID - nanomaterials-10-01729 [pii]
AID - 10.3390/nano10091729 [doi]
PST - epublish
SO  - Nanomaterials (Basel). 2020 Aug 31;10(9):1729. doi: 10.3390/nano10091729.