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Rational design of zero-valence and well-dispersed copper nanocluster stabilized by carbon-coated SiO 2 for highly effective and ultrafast reduction of nitroarenes

Colloid and Interface Science Communications, ISSN: 2215-0382, Vol: 56, Page: 100730
2023
  • 6
    Citations
  • 0
    Usage
  • 3
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    6
    • Citation Indexes
      6
  • Captures
    3
  • Mentions
    1
    • News Mentions
      1
      • News
        1

Most Recent News

Researchers' Work from Dezhou University Focuses on Nanoclusters (Rational Design of Zero-valence and Well-dispersed Copper Nanocluster Stabilized By Carbon-coated Sio2 for Highly Effective and Ultrafast Reduction of Nitroarenes)

2023 SEP 08 (NewsRx) -- By a News Reporter-Staff News Editor at Nanotech Daily -- Investigators publish new report on Nanotechnology - Nanoclusters. According to

Article Description

In this work, we present a ligand modification strategy that allows for the regulation of the valence and dispersion state of Cu clusters in the final obtained Cu@C/SiO 2 catalyst. Specifically, the phthalic acid (PA) ligand promotes the uniform anchoring of zero-valence Cu nanoclusters on Cu@C/SiO 2, resulting in excellent catalytic activity in the selective reduction of toxic 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) with a rate constant ( k ) of 19.06×10 -3 s -1. This value was approximately 2.4- and 31.2-fold higher than that of the CuO/SiO 2 and bare CuO catalysts, respectively. Additionally, no significant decline in activity was detected during six successful cycles. Through systematic analysis of structural and electronic properties of the catalyst, we confirmed that the coordination effect of the PA ligand and the carbothermic effect of its carbon derivatives effectively prevent particle aggregation and modulate the valence state of copper species in Cu@C/SiO 2, resulting in superior catalytic performance.

Bibliographic Details

Da-Shuai Zhang; Yaru Liu; Xiangrui Ren; Fengting Geng; Yong-Zheng Zhang; Yiliyasi Baikeli; Man Yang; Zhongmin Liu; Yanxia Wang; Xiuling Zhang; Longlong Geng

Elsevier BV

Biochemistry, Genetics and Molecular Biology; Chemistry; Materials Science; Chemical Engineering

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