【摘 要】
：
Zero-dimensional(0D)carbon quantum dots(CQDs),as a nanocarbon material in the carbon family,have garnered increasing attention in recent years due to their outs
【机 构】
：
School of Materials and Chemical Engineering,Xuzhou University of Technology,Xuzhou 221018,Jiangsu,C
论文部分内容阅读
Zero-dimensional(0D)carbon quantum dots(CQDs),as a nanocarbon material in the carbon family,have garnered increasing attention in recent years due to their outstanding features of low cost,nontoxicity,large surface area,high electrical conductivity,and rich surface functional groups.By virtue of their rapid electron transfer and large surface area,CQDs also emerge as promising functional materials for the applications in energy-conversion sectors through electrocatalysis.Besides,the rich functional groups on the surface of CQDs offer abundant anchoring sites and active sites for the engineering of multi-component and high-performance composite materials.More importantly,the heteroatom in the CQDs could effectively tailor the charge distribution to promote the electron transfer via internal interactions,which is crucial to the enhancement of electrocatalytic performance.Herein,an overview about recent progress in preparing CQDs-based composites and employing them as promising electrode materials to promote the catalytic activity and stability for electrocatalysis is provided.The introduced CQDs could enhance the conductivity,modify the morphology and crystal phase,optimize the electronic structure,and provide more active centers and defect sites of composites.After establishing a deep understanding of the relationship between CQDs and electrocatalytic performances,the issues and challenges for the development of CQDs-based composites are discussed.
其他文献
The aprotic lithium-oxygen battery (Li-O2 battery) has attracted much attraction for the future advanced battery technologies due to its ultra-high theoretical
Doping have been considered as a prominent strategy to stabilize crystal structure of battery materials during the insertion and removal of alkali ions.The inst
Based on the synchrotron soft X-ray absorption spectroscopy experiments,the fundamental electronic structures of layered LiNixCoyMnzO2 (NCM) are investigated sy
Layered P2-Na2/3Ni1/3Mn2/3O2 is a promising cathode material.It exhibits a high capacity and suitable operating voltage and undergoes a phase transition from P2
Numerous aspects of the water oxidation mechanism in photosystemⅡhave not been fully elucidated,especially the O-O bond formation pathway.However,a body of experimental evidences have identified the O5 and W2 ligands of the oxygen-evolving complex as the
The optoelectronic performance of CsPbBr3 nanocrystal (NC) has been dramatically limited by the severe charge carrier recombination and its narrow light absorpt
Oxygen reduction reaction (ORR) is an important process for the conversion and utilization of a wide range of renewable energy sources, and is critical for the
Lithium-sulfur(Li-S) batteries are one of the most promising rechargeable storage devices due to the high theoretical energy density.However,the low areal sulfur loading impedes their commercial development.Herein,a 3 D free-standing sulfur cathode scaffo
With the development of portable electronic devices, electric vehicles, and power storage systems, the demand for rechargeable batteries with high energy densit
Nickel-iron layered double hydroxides(NiFe LDHs) have been identified as one of the best promising electrocatalysts-candidates for oxygen evolution reaction(OER). However, the catalytic activity effected by interlayer water molecules is ignored and rarely