Electroless reductions on carbon nanotubes: How critical is the diameter of a nanotube
KAUST DepartmentAdvanced Membranes and Porous Materials Research Center
Physical Sciences and Engineering (PSE) Division
Chemical Science Program
Imaging and Characterization Core Lab
Biological and Environmental Sciences and Engineering (BESE) Division
Environmental Science and Engineering Program
Numerical Porous Media SRI Center (NumPor)
Smart Hybrid Materials (SHMs) lab
Advanced Nanofabrication, Imaging and Characterization Core Lab
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AbstractDetailed experimental and theoretical studies have been performed to investigate the influence of the diameter of multi-walled carboxy-functionalized carbon nanotubes (CFCNTs) on their ability to reduce PdCl4 2- salt to Pd nanoparticles on their surface at room temperature. The obtained results (inductively-coupled plasmaspectrometry and cyclic voltammetry) show that the reduction ability of CFCNTs with 5 nm diameter (CFCNT5) is stronger than that of CFCNTs with 15 nm diameter (CFCNT15). Density Functional Theory (DFT) calculations suggest that a more negative charge distribution exists on CFCNT5, which makes it a better electron donor to PdCl42-. This journal is © The Royal Society of Chemistry.
SponsorsWe thank King Abdullah University of Science and Technology (KAUST) and King Abdul-Aziz City of Science and Technology (KACST) for the financial support.
PublisherRoyal Society of Chemistry