Self-assembled Nanohybrid from Opposite Charged Sheets: Alternate Stacking of CoAl LDH and MoS2

摘要

Hybrid materials are attracting intensive attention for their applications in electronics,photoelectronics,LEDs,field-effect transistors,etc.Engineering new hybrid materials and further exploiting their new functions will be significant for future science and technique development.In this work,alternatively stacked self-assembled CoAl LDH/MoS2 nanohybrid has been successfully synthesized by an exfoliation-flocculation method from positively charged CoAl LDH nanosheets (CoAl-NS) with negatively charged MoS2 nanosheets (MoS2-NS).The CoAl LDH/MoS2 hybrid material exhibits an enhanced catalytic performance for oxygen evolution reaction (OER) compared with original constituents of CoAl LDH nanosheets and MoS2 nanosheets.The enhanced OER catalytic performance of CoAl LDH/MoS2 is demonstrated to be due to the improved electron transfer,more exposed catalytic active sites,and accelerated oxygen evolution reaction kinetics.