Green synthesis and formation mechanism of nanostructured Bi2Te3 using ascorbic acid in aqueous solution

Shun Yokoyama; Keita Sato; Makoto Muramatsu; Takehiro Yamasuge; Takashi Itoh; Kenichi Motomiya; Hideyuki Takahashi; Kazuyuki Tohji

doi:10.1016/j.apt.2015.02.002

Green synthesis and formation mechanism of nanostructured Bi₂Te₃ using ascorbic acid in aqueous solution

Shun Yokoyama, Keita Sato, Makoto Muramatsu, Takehiro Yamasuge, Takashi Itoh, Kenichi Motomiya, Hideyuki Takahashi, Kazuyuki Tohji

研究成果: Article › 査読

8 被引用数 (Scopus)

抄録

Nanostructured Bi₂Te₃ can be synthesized in 100% yield by a chemical reduction method in aqueous TeO₃^2- solution using mild and safe ascorbic acid as reducing agent instead of toxic reducing agent commonly employed. Additionally, ascorbic acid works not only as reducing agent but also as capping agent which has an excellent oxidation resistance. In general, ascorbic acid cannot directly reduce TeO₃^2- to metal Te due to the lower reduction potential of TeO₃^2-. Electrochemical analysis and ESI-TOFMS study showed that TeO₃^2- changes to metal Te via easily reducible Te species with ascorbic acid [TeO₂(C₆H₆O₆)]^2-, and subsequently metal Te triggers the reduction of Bi species, resulting in the Bi₂Te₃ nanoparticles. This finding creates a path of green synthesis method for nanostructured metal tellurides which have various applications.

本文言語	English
ページ（範囲）	789-796
ページ数	8
ジャーナル	Advanced Powder Technology
巻	26
号	3
DOI	https://doi.org/10.1016/j.apt.2015.02.002
出版ステータス	Published - 2015 5 1

ASJC Scopus subject areas

Chemical Engineering(all)
Mechanics of Materials

文献へのアクセス

10.1016/j.apt.2015.02.002

フィンガープリント「Green synthesis and formation mechanism of nanostructured Bi<sub>2</sub>Te<sub>3</sub> using ascorbic acid in aqueous solution」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル

@article{871b4442158749c6aa000e8c6404bbfc,

title = "Green synthesis and formation mechanism of nanostructured Bi2Te3 using ascorbic acid in aqueous solution",

abstract = "Nanostructured Bi2Te3 can be synthesized in 100% yield by a chemical reduction method in aqueous TeO32- solution using mild and safe ascorbic acid as reducing agent instead of toxic reducing agent commonly employed. Additionally, ascorbic acid works not only as reducing agent but also as capping agent which has an excellent oxidation resistance. In general, ascorbic acid cannot directly reduce TeO32- to metal Te due to the lower reduction potential of TeO32-. Electrochemical analysis and ESI-TOFMS study showed that TeO32- changes to metal Te via easily reducible Te species with ascorbic acid [TeO2(C6H6O6)]2-, and subsequently metal Te triggers the reduction of Bi species, resulting in the Bi2Te3 nanoparticles. This finding creates a path of green synthesis method for nanostructured metal tellurides which have various applications.",

keywords = "Aqueous solution, Ascorbic acid, Chemical reduction, Green synthesis, Nanostructured BiTe",

author = "Shun Yokoyama and Keita Sato and Makoto Muramatsu and Takehiro Yamasuge and Takashi Itoh and Kenichi Motomiya and Hideyuki Takahashi and Kazuyuki Tohji",

year = "2015",

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doi = "10.1016/j.apt.2015.02.002",

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T1 - Green synthesis and formation mechanism of nanostructured Bi2Te3 using ascorbic acid in aqueous solution

AU - Yokoyama, Shun

AU - Sato, Keita

AU - Muramatsu, Makoto

AU - Yamasuge, Takehiro

AU - Itoh, Takashi

AU - Motomiya, Kenichi

AU - Takahashi, Hideyuki

AU - Tohji, Kazuyuki

PY - 2015/5/1

Y1 - 2015/5/1

N2 - Nanostructured Bi2Te3 can be synthesized in 100% yield by a chemical reduction method in aqueous TeO32- solution using mild and safe ascorbic acid as reducing agent instead of toxic reducing agent commonly employed. Additionally, ascorbic acid works not only as reducing agent but also as capping agent which has an excellent oxidation resistance. In general, ascorbic acid cannot directly reduce TeO32- to metal Te due to the lower reduction potential of TeO32-. Electrochemical analysis and ESI-TOFMS study showed that TeO32- changes to metal Te via easily reducible Te species with ascorbic acid [TeO2(C6H6O6)]2-, and subsequently metal Te triggers the reduction of Bi species, resulting in the Bi2Te3 nanoparticles. This finding creates a path of green synthesis method for nanostructured metal tellurides which have various applications.

AB - Nanostructured Bi2Te3 can be synthesized in 100% yield by a chemical reduction method in aqueous TeO32- solution using mild and safe ascorbic acid as reducing agent instead of toxic reducing agent commonly employed. Additionally, ascorbic acid works not only as reducing agent but also as capping agent which has an excellent oxidation resistance. In general, ascorbic acid cannot directly reduce TeO32- to metal Te due to the lower reduction potential of TeO32-. Electrochemical analysis and ESI-TOFMS study showed that TeO32- changes to metal Te via easily reducible Te species with ascorbic acid [TeO2(C6H6O6)]2-, and subsequently metal Te triggers the reduction of Bi species, resulting in the Bi2Te3 nanoparticles. This finding creates a path of green synthesis method for nanostructured metal tellurides which have various applications.

KW - Aqueous solution

KW - Ascorbic acid

KW - Chemical reduction

KW - Green synthesis

KW - Nanostructured BiTe

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