A general synthesis approach for supported bimetallic nanoparticles via surface inorganometallic chemistry

Authors

Kunlun Ding, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA 70803, USA. kunlunding@lsu.edu.
David A. Cullen, Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
Laibao Zhang, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA 70803, USA.
Zhi Cao, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi 030001, People's Republic of China.
Amitava D. Roy, Center for Advanced Microstructures and Devices, Louisiana State University, Baton Rouge, LA 70806, USA.
Ilia N. Ivanov, Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
Dongmei Cao, Shared Instrumentation Facility, Louisiana State University, Baton Rouge, LA 70803, USA.

Document Type

Article

Publication Date

11-2-2018

Abstract

The synthesis of ultrasmall supported bimetallic nanoparticles (between 1 and 3 nanometers in diameter) with well-defined stoichiometry and intimacy between constituent metals remains a substantial challenge. We synthesized 10 different supported bimetallic nanoparticles via surface inorganometallic chemistry by decomposing and reducing surface-adsorbed heterometallic double complex salts, which are readily obtained upon sequential adsorption of target cations and anions on a silica substrate. For example, adsorption of tetraamminepalladium(II) [Pd(NH) ] followed by adsorption of tetrachloroplatinate [PtCl ] was used to form palladium-platinum (Pd-Pt) nanoparticles. These supported bimetallic nanoparticles show enhanced catalytic performance in acetylene selective hydrogenation, which clearly demonstrates a synergistic effect between constituent metals.

Publication Source (Journal or Book title)

Science (New York, N.Y.)

First Page

560

Last Page

564

Recommended Citation

Ding, K., Cullen, D. A., Zhang, L., Cao, Z., Roy, A. D., Ivanov, I. N., & Cao, D. (2018). A general synthesis approach for supported bimetallic nanoparticles via surface inorganometallic chemistry. Science (New York, N.Y.), 362 (6414), 560-564. https://doi.org/10.1126/science.aau4414