Crystal structure dependent cation exchange reactions in Cu<sub>2−<i>x</i></sub>S nanoparticles
Lihui Chen, Zhenzhen Kong, Hengcong Tao, Haifeng Hu, Jing Gao, Guohua Li
Abstract
S/CdS NDs, and this process is kinetically and thermodynamically favorable. For covellite CuS NDs, they were transformed into hollow CdS NDs under a more aggressive reaction condition due to the unique disulfide covalent bonds. These disulfide bonds distributed along [0 0 1] direction were gradually ruptured/reduced and CuS@CdS core-shell NDs could be obtained. Our findings suggest that not only the CE reaction kinetics and thermodynamics, but also the intermediates and final products are intimately correlated to the crystal structure of the host material.
Topics & Concepts
Wurtzite crystal structureCrystal structureNanoparticleCrystallographyCovelliteCrystal (programming language)Covalent bondChemistryMaterials scienceNanomaterialsChemical engineeringNanotechnologyHexagonal crystal systemOrganic chemistryCopperEngineeringComputer scienceProgramming languageChalcopyriteQuantum Dots Synthesis And PropertiesCopper-based nanomaterials and applicationsAdvanced Photocatalysis Techniques