Abstract
Electrically conductive thin carbon materials have attracted remarkable interest as a shielding material to mitigate the electromagnetic interference (EMI) produced by many telecommunication devices. Herein, we developed a sulfur-doped reduced graphene oxide (SrGO) with high electrical conductivity through using a novel biomass, mushroom-based sulfur compound (lenthionine) via a two-step thermal treatment. The resultant SrGO product exhibited excellent electrical conductivity of 311 S cm -1 , which is 52% larger than 205 S cm -1 for undoped rGO. SrGO also exhibited an excellent EMI shielding effectiveness of 38.6 dB, which is 61% larger than 24.4 dB measured for undoped rGO. Analytical examinations indicate that a sulfur content of 1.95 atom % acts as n-type dopant, increasing electrical conductivity and, therefore, EMI shielding of doped graphene.
| Original language | English |
|---|---|
| Pages (from-to) | 9361-9369 |
| Number of pages | 9 |
| Journal | ACS Applied Materials and Interfaces |
| Volume | 8 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - 2016 Apr 27 |
| Externally published | Yes |
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Keywords
- biomass
- electrical conductivity
- electromagnetic interference shielding
- graphene
- sulfur doping
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Biomass-Derived Thermally Annealed Interconnected Sulfur-Doped Graphene as a Shield against Electromagnetic Interference. / Shahzad, Faisal; Kumar, Pradip; Kim, Yoon Hyun; Hong, Soon Man; Koo, Chong Min.
In: ACS Applied Materials and Interfaces, Vol. 8, No. 14, 27.04.2016, p. 9361-9369.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Biomass-Derived Thermally Annealed Interconnected Sulfur-Doped Graphene as a Shield against Electromagnetic Interference
AU - Shahzad, Faisal
AU - Kumar, Pradip
AU - Kim, Yoon Hyun
AU - Hong, Soon Man
AU - Koo, Chong Min
PY - 2016/4/27
Y1 - 2016/4/27
N2 - Electrically conductive thin carbon materials have attracted remarkable interest as a shielding material to mitigate the electromagnetic interference (EMI) produced by many telecommunication devices. Herein, we developed a sulfur-doped reduced graphene oxide (SrGO) with high electrical conductivity through using a novel biomass, mushroom-based sulfur compound (lenthionine) via a two-step thermal treatment. The resultant SrGO product exhibited excellent electrical conductivity of 311 S cm -1 , which is 52% larger than 205 S cm -1 for undoped rGO. SrGO also exhibited an excellent EMI shielding effectiveness of 38.6 dB, which is 61% larger than 24.4 dB measured for undoped rGO. Analytical examinations indicate that a sulfur content of 1.95 atom % acts as n-type dopant, increasing electrical conductivity and, therefore, EMI shielding of doped graphene.
AB - Electrically conductive thin carbon materials have attracted remarkable interest as a shielding material to mitigate the electromagnetic interference (EMI) produced by many telecommunication devices. Herein, we developed a sulfur-doped reduced graphene oxide (SrGO) with high electrical conductivity through using a novel biomass, mushroom-based sulfur compound (lenthionine) via a two-step thermal treatment. The resultant SrGO product exhibited excellent electrical conductivity of 311 S cm -1 , which is 52% larger than 205 S cm -1 for undoped rGO. SrGO also exhibited an excellent EMI shielding effectiveness of 38.6 dB, which is 61% larger than 24.4 dB measured for undoped rGO. Analytical examinations indicate that a sulfur content of 1.95 atom % acts as n-type dopant, increasing electrical conductivity and, therefore, EMI shielding of doped graphene.
KW - biomass
KW - electrical conductivity
KW - electromagnetic interference shielding
KW - graphene
KW - sulfur doping
UR - http://www.scopus.com/inward/record.url?scp=84964892211&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84964892211&partnerID=8YFLogxK
U2 - 10.1021/acsami.6b00418
DO - 10.1021/acsami.6b00418
M3 - Article
VL - 8
SP - 9361
EP - 9369
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 14
ER -