Preparation and Exceptional Lithium Anodic Performance of Porous Carbon-Coated ZnO Quantum Dots Derived from a Metal–Organic Framework

• DOI: 10.1021/ja311550t
• Publication Date: 2013-05-07T12:21:07Z
• Authors: Seung Jae Yang; Seunghoon Nam; Taehoon Kim; Ji Hyuk Im; Haesol Jung; Jong Hun Kang; Sungun Wi; Byungwoo Park; Chong Rae Park
• Keywords: Surface Properties; Electrochemical Techniques; 02 engineering and technology; Lithium; 7. Clean energy; Carbon; Electric Power Supplies; Quantum Dots; Organometallic Compounds; Zinc Oxide; 0210 nano-technology; Electrodes; Porosity

Hierarchically porous carbon-coated ZnO quantum dots (QDs) (~3.5 nm) were synthesized by a one-step controlled pyrolysis of the metal-organic framework IRMOF-1. We have demonstrated a scalable and facile synthesis of carbon-coated ZnO QDs without agglomeration by structural reorganization. This unique microstructure exhibits outstanding electrochemical performance (capacity, cyclability, and rate capability) when evaluated as an anode material for lithium ion batteries.