Non-photochromic solar energy storage in carbon nitride surpassing blue radicals for hydrogen production

• Published in: Journal of materials chemistry. A, Materials for energy and sustainability Vol. 10; no. 14; pp. 7728 - 7738
• Main Authors: Wu, Pei-Shan, Lin, Tzu-Jen, Hou, Sheng-Shu, Chen, Chih-Chia, Tsai, Dai-Ling, Huang, Kuan-Hsiang, Wu, Jih-Jen
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 05.04.2022
• Subjects: Carbon; Carbon nitride; Crystal structure; Crystallinity; Density functional theory; Energy conversion; Energy storage; Hydrogen evolution; Hydrogen production; Molecular structure; Photocatalysis; Photochromism; Photoelectrons; Photon absorption; Potassium; Radicals; Solar energy; Solar energy conversion; Storage capacity

Potassium poly(heptazine imide) (KPHI) exhibiting the dual functionality of photon absorption and photoelectron storage for solar energy conversion is a new class of ionic two-dimensional (2D) carbon nitrides. Rather than forming blue radicals upon storing photoelectrons in the yellow crystalline KP...