Engineering and Technology

New solar energy-storage resource of plasmon-activated water solution with higher chemical potential

C. Yang, S. Yu, et al.

Discover an innovative approach to solar energy storage through plasmon-activated water (PAW)! This research by Chih-Ping Yang, Shih-Hao Yu, Fu-Der Mai, Tai-Chih Kuo, and Yu-Chuan Liu reveals how PAW, enhanced by sunlight on gold nanoparticles, surpasses traditional methods with a chemical potential that boosts evaporation and vital chemical reactions, all while maintaining its properties for two days.

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Abstract

This work presents a novel strategy for solar energy storage using plasmon-activated water (PAW) as an energy-storage medium. The PAW solution, created via hot electron transfer (HET) on Au nanoparticles (AuNPs) illuminated by sunlight, exhibits a significantly higher chemical potential than deionized (DI) water. This higher chemical potential allows for faster evaporation and enhanced chemical reactions, such as hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The PAW solution maintains its enhanced properties for approximately two days, making it a practical energy storage system with an energy conversion efficiency of around 6.7%.

Publisher

Scientific Reports

Published On

Nov 30, 2020

Authors

Chih-Ping Yang, Shih-Hao Yu, Fu-Der Mai, Tai-Chih Kuo, Yu-Chuan Liu

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