In situ solution plasma synthesis of silver nanoparticles supported on nitrogen-doped carbons with enhanced oxygen reduction activity

Gasidit Panomsuwan, Jidapa Chantaramethakul, Chayanaphat Chokradjaroen, Takahiro Ishizaki

研究成果: Article

1 引用 (Scopus)

抄録

Silver nanoparticles supported on nitrogen-doped carbons (Ag/NC) were in situ synthesized by a solution plasma process. In the solution plasma, Ag nanoparticles were produced via the sputtering of Ag electrode, while the NC supports were simultaneously synthesized from 2-cyanopyridine (C 6 H 4 N 2 ). The results of the characterization show that Ag nanoparticles had good crystallinity and the NC supports possessed an amorphous structure. The oxygen reduction reaction (ORR) catalyzed on Ag/NC proceeded via the co-existence of two and four-electron pathways in alkaline solution, with the four-electron pathway being found to be more dominant. An enhanced ORR activity of Ag/NC was attributed to the synergistic effect of Ag nanoparticles and NC supports. Moreover, Ag/NC exhibited long-term durability and high resistance to methanol oxidation in comparison with the commercial Pt/C catalyst.

元の言語English
ページ(範囲)135-139
ページ数5
ジャーナルMaterials Letters
251
DOI
出版物ステータスPublished - 2019 9 15

Fingerprint

Silver
Nitrogen
Carbon
silver
Oxygen
Nanoparticles
Plasmas
nitrogen
nanoparticles
carbon
oxygen
synthesis
Electrons
high resistance
durability
Sputtering
Methanol
crystallinity
Durability
electrons

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

これを引用

@article{8772e35db1fe4fd39dc184d72b1ab7f8,
title = "In situ solution plasma synthesis of silver nanoparticles supported on nitrogen-doped carbons with enhanced oxygen reduction activity",
abstract = "Silver nanoparticles supported on nitrogen-doped carbons (Ag/NC) were in situ synthesized by a solution plasma process. In the solution plasma, Ag nanoparticles were produced via the sputtering of Ag electrode, while the NC supports were simultaneously synthesized from 2-cyanopyridine (C 6 H 4 N 2 ). The results of the characterization show that Ag nanoparticles had good crystallinity and the NC supports possessed an amorphous structure. The oxygen reduction reaction (ORR) catalyzed on Ag/NC proceeded via the co-existence of two and four-electron pathways in alkaline solution, with the four-electron pathway being found to be more dominant. An enhanced ORR activity of Ag/NC was attributed to the synergistic effect of Ag nanoparticles and NC supports. Moreover, Ag/NC exhibited long-term durability and high resistance to methanol oxidation in comparison with the commercial Pt/C catalyst.",
keywords = "Electrocatalyst, Nitrogen-doped carbon, Oxygen reduction reaction, Silver nanoparticles, Solution plasma",
author = "Gasidit Panomsuwan and Jidapa Chantaramethakul and Chayanaphat Chokradjaroen and Takahiro Ishizaki",
year = "2019",
month = "9",
day = "15",
doi = "10.1016/j.matlet.2019.05.052",
language = "English",
volume = "251",
pages = "135--139",
journal = "Materials Letters",
issn = "0167-577X",
publisher = "Elsevier",

}

TY - JOUR

T1 - In situ solution plasma synthesis of silver nanoparticles supported on nitrogen-doped carbons with enhanced oxygen reduction activity

AU - Panomsuwan, Gasidit

AU - Chantaramethakul, Jidapa

AU - Chokradjaroen, Chayanaphat

AU - Ishizaki, Takahiro

PY - 2019/9/15

Y1 - 2019/9/15

N2 - Silver nanoparticles supported on nitrogen-doped carbons (Ag/NC) were in situ synthesized by a solution plasma process. In the solution plasma, Ag nanoparticles were produced via the sputtering of Ag electrode, while the NC supports were simultaneously synthesized from 2-cyanopyridine (C 6 H 4 N 2 ). The results of the characterization show that Ag nanoparticles had good crystallinity and the NC supports possessed an amorphous structure. The oxygen reduction reaction (ORR) catalyzed on Ag/NC proceeded via the co-existence of two and four-electron pathways in alkaline solution, with the four-electron pathway being found to be more dominant. An enhanced ORR activity of Ag/NC was attributed to the synergistic effect of Ag nanoparticles and NC supports. Moreover, Ag/NC exhibited long-term durability and high resistance to methanol oxidation in comparison with the commercial Pt/C catalyst.

AB - Silver nanoparticles supported on nitrogen-doped carbons (Ag/NC) were in situ synthesized by a solution plasma process. In the solution plasma, Ag nanoparticles were produced via the sputtering of Ag electrode, while the NC supports were simultaneously synthesized from 2-cyanopyridine (C 6 H 4 N 2 ). The results of the characterization show that Ag nanoparticles had good crystallinity and the NC supports possessed an amorphous structure. The oxygen reduction reaction (ORR) catalyzed on Ag/NC proceeded via the co-existence of two and four-electron pathways in alkaline solution, with the four-electron pathway being found to be more dominant. An enhanced ORR activity of Ag/NC was attributed to the synergistic effect of Ag nanoparticles and NC supports. Moreover, Ag/NC exhibited long-term durability and high resistance to methanol oxidation in comparison with the commercial Pt/C catalyst.

KW - Electrocatalyst

KW - Nitrogen-doped carbon

KW - Oxygen reduction reaction

KW - Silver nanoparticles

KW - Solution plasma

UR - http://www.scopus.com/inward/record.url?scp=85065717137&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85065717137&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2019.05.052

DO - 10.1016/j.matlet.2019.05.052

M3 - Article

AN - SCOPUS:85065717137

VL - 251

SP - 135

EP - 139

JO - Materials Letters

JF - Materials Letters

SN - 0167-577X

ER -