HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
工学研究科  >
雑誌発表論文等  >

DeNovo Synthesis of Gold-Nanoparticle-Embedded, Nitrogen-Doped Nanoporous Carbon Nanoparticles (Au@NC) with Enhanced Reduction Ability

フルテキスト
Revised MS-cctc.201501020.pdf703.47 kBPDF見る/開く
この文献へのリンクには次のURLを使用してください:http://hdl.handle.net/2115/64467

タイトル: DeNovo Synthesis of Gold-Nanoparticle-Embedded, Nitrogen-Doped Nanoporous Carbon Nanoparticles (Au@NC) with Enhanced Reduction Ability
著者: Liao, Yu-Te 著作を一覧する
Chen, Jeffrey E. 著作を一覧する
Isida, Yohei 著作を一覧する
Yonezawa, Tetsu 著作を一覧する
Chang, Wei-Chen 著作を一覧する
Alshehri, Saad M. 著作を一覧する
Yamauchi, Yusuke 著作を一覧する
Wu, Kevin C. -W. 著作を一覧する
キーワード: gold
nanoparticles
nanoporous carbon
reduction
zeolitic imidazolate framework-8
発行日: 2016年 2月 6日
出版者: Wiley-Blackwell
誌名: ChemCatChem
巻: 8
号: 3
開始ページ: 502
終了ページ: 509
出版社 DOI: 10.1002/cctc.201501020
抄録: A denovo synthesis of gold-nanoparticle-embedded, nitrogen-doped nanoporous carbon nanoparticles (Au@NC) was investigated in this work. Chloroauroic acid was encapsulated inside zeolitic imidazolate framework-8 (ZIF-8) nanoparticles during the synthesis and later reduced into gold nanoparticles. The as-synthesized gold-nanoparticle-embedded ZIF-8 (Au@ZIF-8) was then carbonized into Au@NC to enhance the stability of the nanoporous support. The results show that Au@NC exhibits a porous structure containing 3wt% of gold. 2-Methylimidazole provided an abundant amount of nitrogen (19wt%) on the carbon matrix, which resulted in a hydrophilic and positively charged surface that is useful for the reduction of 4-nitrophenol. The results of the catalytic reaction indicate that synthesized Au@NC could act as an effective catalyst with a turnover frequency (TOF) of 1185g(-1)s(-1), which is higher than that of conventional naked Au nanoparticles (TOF: 339g(-1)s(-1)) and that of Au nanoparticles on activated carbon (TOF: 89g(-1)s(-1)). We propose that the enhanced performance of Au@NC resulted from homogeneous distribution of Au nanoparticles along with the hydrophilic and positively charged nitrogen-doped carbon surface.
Rights: This is the accepted version of the following article: DeNovo Synthesis of Gold-Nanoparticle-Embedded, Nitrogen-Doped Nanoporous Carbon Nanoparticles (Au@NC) with Enhanced Reduction Ability. ChemCatChem, 8(3):502-509.,which has been published in final form at http://dx.doi.org/10.1002/cctc.201501020.
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/64467
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 米澤 徹

 

本サイトに関するご意見・お問い合わせは repo at lib.hokudai.ac.jp へお願いします。 - 北海道大学