NHC stabilized copper nanoparticles<i>via</i>reduction of a copper NHC complex

Richstein, Robert; Eisen, Constantin; Ge, Lingcong; Chalermnon, Monnaya; Mayer, Florian; Keppler, Bernhard K.; Chin, Jia Min; Reithofer, Michael R.

doi:10.1039/d3cc02745g

Chem. Commun.

2023

DOI: 10.1039/d3cc02745g

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NHC stabilized copper nanoparticlesviareduction of a copper NHC complex

Robert Richstein

Constantin Eisen

Lingcong Ge

et al.

Abstract: The bottom-up synthesis of plasmonic NHC@CuNPs from common starting reagents, via the formation of the synthetically accessible NHC-Cu(I)-Br complex and its reduction by NH3·BH3 is reported. The resulting NHC@CuNPs have...

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2024

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Cited by 3 publications

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Poly(N‐Heterocyclic Carbene)‐Capped Alloy and Core‐Shell AuAg Bimetallic Nanoparticles

Nguyen,

Salek,

Shultz‐Johnson

et al. 2024

Angewandte Chemie

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N‐Heterocyclic carbene (NHC)‐stabilized metal nanoparticles (NPs) have recently attracted considerable attention. While most efforts in the field have been devoted to the development of NHC‐tethered monometallic NPs and enhancing their stabilities under various conditions, their bimetallic counterparts are rare in the literature. Herein, we demonstrate that the covalent immobilization of Au and Ag atoms on polymerized NHCs is a powerful method to access bimetallic AuAg NPs. In addition, we show that while AuAg alloy NPs are often obtained via this method, the use of bimetallic polymeric substrates with lower Ag content, relative to Au, results in the formation of core‐shell NPs with Au core and Ag shell. Application of these nanomaterials for oxygen reduction reaction is demonstrated with all materials exhibiting electrocatalytic activity. This work demonstrates for the first time that while bimetallic poly(NHC‐metal)s are viable substrates to access NHC‐stabilized bimetallic NPs, careful adjustment of metal content in the polymeric substrates can finetune the microstructure of the resulting NPs, i.e. alloy vs. core‐shell.

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Poly(N‐Heterocyclic Carbene)‐Capped Alloy and Core‐Shell AuAg Bimetallic Nanoparticles

Nguyen,

Salek,

Shultz‐Johnson

et al. 2024

Angewandte Chemie

View full text Add to dashboard Cite

show abstract

Poly(N‐Heterocyclic Carbene)‐Capped Alloy and Core‐Shell AuAg Bimetallic Nanoparticles

Nguyen,

Salek,

Shultz‐Johnson

et al. 2024

Angew Chem Int Ed

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Supercritical hydrothermal synthesis of copper nanoparticles: Experimental and kinetic study

Liu,

Wang,

Wang

et al. 2024

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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NHC stabilized copper nanoparticlesviareduction of a copper NHC complex

Abstract: The bottom-up synthesis of plasmonic NHC@CuNPs from common starting reagents, via the formation of the synthetically accessible NHC-Cu(I)-Br complex and its reduction by NH3·BH3 is reported. The resulting NHC@CuNPs have...

Cited by 3 publications

References 43 publications

Poly(N‐Heterocyclic Carbene)‐Capped Alloy and Core‐Shell AuAg Bimetallic Nanoparticles

Poly(N‐Heterocyclic Carbene)‐Capped Alloy and Core‐Shell AuAg Bimetallic Nanoparticles

Poly(N‐Heterocyclic Carbene)‐Capped Alloy and Core‐Shell AuAg Bimetallic Nanoparticles

Supercritical hydrothermal synthesis of copper nanoparticles: Experimental and kinetic study

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