Abstract
Self-assembly of noble metal nanobuilding blocks (NBBs) to hierarchical self-supported porous monoliths provides a great potential for achieving their wonderful properties along with practical applications. However, the self-assembly procedure for this kind of material reported in template and sol–gel approach is limited to specific conditions, and little interest was paid to the role of ligands in the self-assembly process to grasp the control of the structure and properties. Herein, two ligands (L1 and L2) containing thiol and glutamic acid moiety were synthesized and grafted to noble metallic nanowires and nanospheres. It had been shown that these kind of functional NBBs formed supramolecular gels in various solvents. Interestingly, these gels displayed stimulus-responsibility that has remained unreported with noble metal gels so far. In particular, the gels formed by Pt nanowires capped with L2 (PtNW-L2) demonstrated both thermo and shearing reversible gelation. Furthermore, aerogels can easily be pre...
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