| Title | Affinity of Ligands Co-Ordinated on Gold Nanoparticles |
| Authors | Zhu, Lili Liu, Xiaoqing Wang, Yong Li, Linling Teng, Chao Zhang, Chen Tao, HuChun Xue, Gi |
| Affiliation | Shenzhen Polytech, Inst Crit Mat Integrated Circuits, Shenzhen 518055, Peoples R China Nanjing Univ, Sch Chem & Chem Engn, Dept Polymer Sci & Engn, Nanjing 210093, Peoples R China Peking Univ, Sch Environm & Energy, Key Lab Heavy Met Pollut Control & Reutilizat, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China |
| Keywords | MICRODOMAIN STRUCTURE EXCHANGE-REACTIONS SINGLE-MOLECULE MONOLAYERS NMR DYNAMICS SURFACE MOBILITY BIOLOGY SPECTROSCOPY |
| Issue Date | Nov-2022 |
| Publisher | JOURNAL OF PHYSICAL CHEMISTRY C |
| Abstract | Structural information at an assembled molecule/ solid interface has been limited, due in part to the obscure NMR signals for the atoms co-ordinated to the solid surface. Here, we report an effective detection of the surface composition of the ligands on gold nanoparticles (AuNPs) by 1H solid-state NMR under fast magic angle spinning. An investigation of the confinement effect of the ligand shell was successfully performed by multiple pulse dipolar filter NMR. We demonstrate that the affinity of surface species on AuNPs is affected not only by interfacial chemical bonding but also by physical confinement, leading to a new fundamental insight into the structure-property correlation for major interfacial behaviors, such as ligand exchange reaction and curvature effect on properties. The concept of physical confinement and the characterization method developed in this work is probably applicable to all ligand/nanoparticle interfaces and thus can provide a clue to the design and execution of the manipulating strategy for nanocomposites. |
| URI | http://hdl.handle.net/20.500.11897/659229 |
| ISSN | 1932-7447 |
| DOI | 10.1021/acs.jpcc.2c05315 |
| Indexed | SCI(E) |
| Appears in Collections: | 环境与能源学院 环境模拟与污染控制国家重点联合实验室 |
