Related Experiment Video
Updated: Sep 29, 2025

Translating Extracellular Electron Transfer Activities with Organic Electrochemical Transistors
Published on: January 31, 2025
Manipulating the Li-S reaction kinetics via the V8C7/phosphorus defect-integrated carbon promoter
Qin Yang1, Zhuo Chen1, Zhiqin Zheng2
1State Key Laboratory of Environmental-Friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621010, P. R. China. yzsong@swust.edu.cn.
Abstract:
V8C7/phosphorus defect-integrated carbon (VPC) is proposed as a dual-function promoter for Li-S chemistry. The well-dispersed V8C7 and phosphorus defects exhibit ample polar sites and remarkable electron conductivity. Such rational integration of dual active centers simultaneously suppresses the shuttle effect and propels the Li-S redox reaction kinetics. Therefore, the S/VPC cathode shows an initial capacity of 1090.0 mA h g-1 and a high retention of 83.5% at 0.2C after 100 cycles and a low decay rate of 0.076% at 2C over 600 cycles.
Related Concept Videos
Biasing of FET
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the...
Aldehydes and Ketones to Alkenes: Wittig Reaction Mechanism
The reaction begins with the nucleophilic addition between a phosphorus ylide and the carbonyl compound. Due to its carbanionic character, phosphorus ylide acts as a strong nucleophile and attacks the electrophilic carbonyl group. This generates a charge-separated dipolar intermediate called betaine. The negatively charged oxygen atom and...
Carbon-dioxide Fixation
E1 Reaction: Kinetics and Mechanism
E2 Reaction: Kinetics and Mechanism
Biasing of P-N Junction
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...

