4.7 Article

Facile Preparation and Highly Efficient Catalytic Performances of Pd-Cu Bimetallic Catalyst Synthesized via Seed-Mediated Method

Journal

NANOMATERIALS
Volume 10, Issue 1, Pages -

Publisher

MDPI
DOI: 10.3390/nano10010006

Keywords

seed-mediated; bimetallic catalyst; nanocomposites; catalyst

Funding

  1. National Natural Science Foundation of China [21872119]
  2. Support Program for the Top Young Talents of Hebei Province
  3. China Postdoctoral Science Foundation [2015M580214]
  4. Research Program of the College Science and Technology of Hebei Province [ZD2018091]

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With the rapid development of industry, the problem of environmental pollution has become increasingly prominent. Exploring and preparing green, efficient, and low cost catalysts has become the key challenge for scientists. However, some conventional preparation methods are limited by conditions, such as cumbersome operation, high energy consumption, and high pollution. Here, a simple and efficient seed-mediated method was designed and proposed to synthesize a highly efficient bimetallic catalyst for catalyzing nitro compounds. A Pd-Cu bimetallic composite (BCM) can be prepared by synthesizing the original seed crystal of precious metal palladium, then growing the mature nanocrystalline palladium and supporting the transition metal copper. Importantly, after eight consecutive catalytic cycles, the conversion of the catalyzed 2-NA was 84%, while the conversion of the catalyzed 4-NP was still 72%. And the catalytic first order rates of 2-NA and 4-NP constants were 0.015 s(-1), and 0.069 s(-1), respectively. Therefore, current research of nanocomposites catalyst showed great significance for serious environmental pollution problems and the protection of living environment, providing a new idea for the preparation of new bimetallic catalytic materials.

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