A1 Journal article (refereed)
N-Heterocyclic Carbene-Stabilized Hydrido Au24 Nanoclusters : Synthesis, Structure, and Electrocatalytic Reduction of CO2 (2022)

Kulkarni, V. K., Nourmohammadi Khiarak, B., Takano, S., Malola, S., Albright, E. L., Levchenko, T. I., Aloisio, M. D., Dinh, C.-T., Tsukuda, T., Häkkinen, H., & Crudden, C. M. (2022). N-Heterocyclic Carbene-Stabilized Hydrido Au24 Nanoclusters : Synthesis, Structure, and Electrocatalytic Reduction of CO2. Journal of the American Chemical Society, 144(20), 9000-9006. https://doi.org/10.1021/jacs.2c00789

JYU authors or editors

Malola, Sami
Häkkinen, Hannu

Publication details

All authors or editors: Kulkarni, Viveka K.; Nourmohammadi Khiarak, Behnam; Takano, Shinjiro; Malola, Sami; Albright, Emily L.; Levchenko, Tetyana I.; Aloisio, Mark D.; Dinh, Cao-Thang; Tsukuda, Tatsuya; Häkkinen, Hannu; et al.

Journal or series: Journal of the American Chemical Society

ISSN: 0002-7863

eISSN: 1520-5126

Publication year: 2022

Publication date: 12/05/2022

Volume: 144

Issue number: 20

Pages range: 9000-9006

Publisher: American Chemical Society (ACS)

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1021/jacs.2c00789

Publication open access: Not open

Publication channel open access: Channel is not openly available

Abstract

Atomically precise hydrido gold nanoclusters are extremely rare but interesting due to their potential applications in catalysis. By optimization of molecular precursors, we have prepared an unprecedented N-heterocyclic carbene-stabilized hydrido gold nanocluster, [Au24(NHC)14Cl2H3]3+. This cluster comprises a dimer of two Au12 kernels, each adopting an icosahedral shape with one missing vertex. The two kernels are joined through triangular faces, which are capped with a total of three hydrides. The hydrides are detected by electrospray ionization mass spectrometry and nuclear magnetic resonance spectroscopy, with density functional theory calculations supporting their position bridging the six uncoordinated gold sites. The reactivity of this Au24H3 cluster in the electrocatalytic reduction of CO2 is demonstrated and benchmarked against related catalysts.

Keywords: nanostructures; ligands; anions; gold

Free keywords: nanoclusters; ligands; metal clusters; anions; gold

Fields of science: