TY - JOUR
T1 - Single-walled carbon nanotubes wrapped by cationic nitrogen-doped carbon for electrocatalytic applications
AU - Chae, Sangwoo
AU - Phan, Phu Quoc
AU - Panomsuwan, Gasidit
AU - Bratescu, Maria Antoaneta
AU - Hashimoto, Takeshi
AU - Teshima, Katsuya
AU - Saito, Nagahiro
N1 - Funding Information:
This work has been financially supported by Ministry of Education, Culture, Sports, Science, and Technology (MEXT)—Japan Science and Technology Agency (JST)—Program on Open Innovation Platform with Enterprises, Research Institute and Academia (OPERA), Grant JPMJOP1843 and Ministry of Education, Culture, Sports, Science and Technology (MEXT)—Japan Science and Technology Agency (JST)—Strategic International Collaborative Research Program (SICORP), Grant JPMJSC18H1.
Publisher Copyright:
© 2020 American Chemical Society.
PY - 2020/10/23
Y1 - 2020/10/23
N2 - The exploration of novel carbon material systems has emerged as a promising strategy for yielding unique and unconventional functional properties. In this study, a cationic nitrogen-doped carbonwrapped single-walled carbon nanotube (CN-C@SWCNT) was synthesized for the first time via solution plasma (SP) by using an aniline aqueous solution with the SWCNT dispersion under ambient conditions. The reactive species produced from SP led to the formation of cationic nitrogendoped carbon (CN-C) completely wrapped around SWCNT. Raman spectroscopy, electron diffraction, and X-ray photoelectron spectroscopy confirmed the presence of cationic nitrogen. CN-C@SWCNT exhibited an excellent electrical conductivity of 120.30 S cm-1. Room-temperature halleffect measurements revealed p-type semiconducting behavior for CN-C@ SWCNT, with a carrier concentration of 4.6 × 1020 cm-3. The electrical conductivity and carrier concentration of p-type CN-C@SWCNT were greater than those reported previously for carbon-based materials. The high electrical properties of CN-C@SWCNT were synergistically related to a conducting bridge between CN-C and SWCNT conducting domains and the presence of doped cationic nitrogen. The SP-synthesized CN-C@SWCNT demonstrates immense potential as an emerging class of p-type carbon materials in advanced electrocatalytic applications.
AB - The exploration of novel carbon material systems has emerged as a promising strategy for yielding unique and unconventional functional properties. In this study, a cationic nitrogen-doped carbonwrapped single-walled carbon nanotube (CN-C@SWCNT) was synthesized for the first time via solution plasma (SP) by using an aniline aqueous solution with the SWCNT dispersion under ambient conditions. The reactive species produced from SP led to the formation of cationic nitrogendoped carbon (CN-C) completely wrapped around SWCNT. Raman spectroscopy, electron diffraction, and X-ray photoelectron spectroscopy confirmed the presence of cationic nitrogen. CN-C@SWCNT exhibited an excellent electrical conductivity of 120.30 S cm-1. Room-temperature halleffect measurements revealed p-type semiconducting behavior for CN-C@ SWCNT, with a carrier concentration of 4.6 × 1020 cm-3. The electrical conductivity and carrier concentration of p-type CN-C@SWCNT were greater than those reported previously for carbon-based materials. The high electrical properties of CN-C@SWCNT were synergistically related to a conducting bridge between CN-C and SWCNT conducting domains and the presence of doped cationic nitrogen. The SP-synthesized CN-C@SWCNT demonstrates immense potential as an emerging class of p-type carbon materials in advanced electrocatalytic applications.
KW - Carbon nanotube
KW - Carrier concentration
KW - Cationic nitrogen
KW - Electrical conductivity
KW - Solution plasma
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U2 - 10.1021/acsanm.0c02164
DO - 10.1021/acsanm.0c02164
M3 - Article
AN - SCOPUS:85096112146
SN - 2574-0970
VL - 3
SP - 10183
EP - 10189
JO - ACS Applied Nano Materials
JF - ACS Applied Nano Materials
IS - 10
ER -