PMID- 36105968
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220917
IS  - 2046-2069 (Electronic)
IS  - 2046-2069 (Linking)
VI  - 12
IP  - 35
DP  - 2022 Aug 10
TI  - Superior quality chemically reduced graphene oxide for high performance EMI 
      shielding materials.
PG  - 22608-22622
LID - 10.1039/d2ra02678c [doi]
AB  - The chemical reduction process of graphene oxide combined with a mild and 
      controllable thermal treatment under vacuum at 200  degrees C for 4 hours provided a 
      cost-effective, scalable, and high-yield route for Reduced Graphene Oxide (RGO) 
      industrial production and became a potential candidate for producing 
      electromagnetic interference (EMI) shielding. We investigated graphite, and RGO 
      using l-ascorbic acid and Sodium borohydride before and after thermal treatment 
      by carefully evaluating the chemical and morphological structures. The thermally 
      treated l-ascorbic Acid reduction route (TCRGOL) conductivity was 2.14 x 10(3) S 
      m(-1) and total shielding efficiency (SET) based on mass loadings per area of 
      shielding was 94 dB with about one-tenth less graphite weight and surpassing 
      other graphene reduction mechanisms in the frequency range of 8.2-12.4 GHz, i.e., 
      X-band, at room temperature while being tested using the waveguide line 
      technique. The developed treatment represents valuable progress in the path to 
      chemical reduction using a safe reducing agent and offering superior quality RGO 
      rarely achieved with the top-down technique, providing a high EMI shielding 
      performance.
CI  - This journal is (c) The Royal Society of Chemistry.
FAU - Sadek, Ramy
AU  - Sadek R
AUID- ORCID: 0000-0001-9710-0566
AD  - Chemical Engineering Department, Polytechnique Montreal Montreal H3C 3A7 Canada 
      jamal.chaouki@polymtl.ca +1 514 340 4711, ext. 4034.
FAU - Sharawi, Mohammad S
AU  - Sharawi MS
AD  - Poly-Grames Research Center, Electrical Engineering Department, Polytechnique 
      Montreal Montreal QC H3C 3A7 Canada.
FAU - Dubois, Charles
AU  - Dubois C
AD  - Chemical Engineering Department, Polytechnique Montreal Montreal H3C 3A7 Canada 
      jamal.chaouki@polymtl.ca +1 514 340 4711, ext. 4034.
FAU - Tantawy, Hesham
AU  - Tantawy H
AUID- ORCID: 0000-0001-5481-7049
AD  - Chemical Engineering Department, Military Technical College Cairo Egypt.
FAU - Chaouki, Jamal
AU  - Chaouki J
AD  - Chemical Engineering Department, Polytechnique Montreal Montreal H3C 3A7 Canada 
      jamal.chaouki@polymtl.ca +1 514 340 4711, ext. 4034.
LA  - eng
PT  - Journal Article
DEP - 20220812
PL  - England
TA  - RSC Adv
JT  - RSC advances
JID - 101581657
PMC - PMC9372871
COIS- There are no conflicts to declare.
EDAT- 2022/09/16 06:00
MHDA- 2022/09/16 06:01
PMCR- 2022/08/12
CRDT- 2022/09/15 02:34
PHST- 2022/04/27 00:00 [received]
PHST- 2022/08/02 00:00 [accepted]
PHST- 2022/09/15 02:34 [entrez]
PHST- 2022/09/16 06:00 [pubmed]
PHST- 2022/09/16 06:01 [medline]
PHST- 2022/08/12 00:00 [pmc-release]
AID - d2ra02678c [pii]
AID - 10.1039/d2ra02678c [doi]
PST - epublish
SO  - RSC Adv. 2022 Aug 12;12(35):22608-22622. doi: 10.1039/d2ra02678c. eCollection 
      2022 Aug 10.