1 research outputs found
General Self-Assembly Route toward Sparsely Studded Noble-Metal Nanocrystals inside Graphene Hollow Sphere Network for Ultrastable Electrocatalyst Utilization
Herein, we rationally design and
construct a novel type of sparsely
studded noble-metal nanocrystals inside graphene hollow sphere network
(abbreviated as noble-metal@G HSN) through an electrostatic-attraction-directed
self-assembly approach. The formation of Pt@G and Pd@G hollow sphere
networks have been illustrated as examples using SiO<sub>2</sub> spheres
as templates. Moreover, the electrocatalytic performance of the Pt@G
HSN for methanol oxidation reaction has been examined as a proof-of-concept
demonstration of the compositional and structural superiorities of
noble-metal@G HSN toward electrocatalyst utilization. The as-prepared
Pt@G HSN manifests higher catalytic activity and markedly enhanced
long-term durability in comparison with commercial Pt/C catalyst