Isolating contiguous Pt atoms and forming Pt-Zn intermetallic nanoparticles to regulate selectivity in 4-nitrophenylacetylene hydrogenation

Aijuan Han, Jian Zhang, Wenming Sun, Wenxing Chen, Shaolong Zhang, Yunhu Han, Quanchen Feng, Lirong Zheng, Lin Gu, Chen Chen, Qing Peng, Dingsheng Wang () and Yadong Li
Additional contact information
Aijuan Han: Beijing University of Chemical Technology
Jian Zhang: Tsinghua University
Wenming Sun: China Agricultural University
Wenxing Chen: Tsinghua University
Shaolong Zhang: Tsinghua University
Yunhu Han: Tsinghua University
Quanchen Feng: Tsinghua University
Lirong Zheng: Chinese Academy of Sciences
Lin Gu: Chinese Academy of Sciences
Chen Chen: Tsinghua University
Qing Peng: Tsinghua University
Dingsheng Wang: Tsinghua University
Yadong Li: Tsinghua University

Nature Communications, 2019, vol. 10, issue 1, 1-7

Abstract: Abstract Noble metals play a momentous role in heterogeneous catalysis but still face a huge challenge in selectivity control. Herein, we report isolating contiguous Pt atoms and forming Pt-Zn intermetallic nanoparticles as an effective strategy to optimize the selectivity of Pt catalysts. Contiguous Pt atoms are isolated into single atoms and Pt-Zn intermetallic nanoparticles are formed which are supported on hollow nitrogen-doped carbon nanotubes (PtZn/HNCNT), as confirmed by aberration-corrected high-resolution transmission electron microscopy and X-ray absorption spectrometry measurements. Interestingly, this PtZn/HNCNT catalyst promotes the hydrogenation of 4-nitrophenylacetylene to 4-aminophenylacetylene with a much higher conversion ( > 99%) and selectivity (99%) than the comparison samples with Pt isolated-single-atomic-sites (Pt/HNCNT) and Pt nanoparticles (Pt/CN). Further density functional theory (DFT) calculations disclose that the positive Zn atoms assist the adsorption of nitro group and Pt-Zn intermetallic nanoparticles facilitate the hydrogenation on nitro group kinetically.

Date: 2019
References: Add references at CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
https://www.nature.com/articles/s41467-019-11794-6 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-11794-6

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-019-11794-6

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().