Yafei Zhang

TL;DR: Nitrogen-doped, carbon-rich, highly photoluminescent carbon dots have been synthesized for the first time from ammonium citrate under hydrothermal conditions and possess bright blue luminescence, short fluorescence lifetime, pH-sensitivity and excellent stability at a high salt concentration.

TL;DR: A green, large-scale and high-output heterogeneous synthesis of N-doped CDs was developed by reacting calcium citrate and urea under microwave irradiation without the use of any capping agents to exhibit good aqueous solubility and yellowish-green fluorescence in the solid and aqueously states.

TL;DR: RGO, which was prepared via the reduction of graphene oxide by pyrrole, exhibited excellent responsive sensitivity and selectivity to ammonia (NH3) gas and showed great potential for ultrasensitive detection of NH3 gas in a wide variety of fields.

TL;DR: A novel p-n hetero-nanostructure on MoS2 NSs is designed using interface engineering via a simple wet chemical method, endowed with an excellent response and improves recoverability to more than 90%, which is rare for room-temperature gas sensors.

TL;DR: In this article, a flexible all-solid-state supercapacitors (ASSSCs) based on reduced graphene oxide (rGO)/polypyrrole nanotube (PPy NT) papers prepared by a facile vacuum filtration method was reported.