Unveiling room temperature hydrogen storage in tubular graphitic carbon nitride with diverse morphologies

• DOI: 10.1016/j.ecmx.2023.100496
• Publication Date: 2023-11-20T21:38:36Z
• Authors: Ruiran Guo; Barton Arkhurst; Xinyue Fan; Min-wei Lee; Wen-jui Lin; Yung-Hsin Shih; Ghazaleh Bahman Rokh; Honghao Li; Sharon Sasmita; Yifan Zhou; Sammy Lap Ip Chan
• Keywords: Graphitic carbon nitride; Specific surface area

The 21st century stands as the hydrogen century, embodying profound possibilities for an economy driven by hydrogen. However, a main obstacle in realizing revolves around establishing secure and efficient method storing In this work, tubular graphitic carbon nitride (g-C3N4) was synthesized potential storage. strategic fabrication of g-C3N4 takes shape via three distinctive routes: hydrothermal, thermal condensation, double calcination. Each pathway yields with varying attributes such surface area size, thereby laying groundwork intricate exploration discussion their storage capabilities. Among materials, those obtained through hydrothermal route (H-g-C3N4) exhibited most substantial dimensions, boasting impressive length exceeding 10 µm. Conversely, both condensation-derived nanotubes (T-g-C3N4) calcination counterparts (D-g-C3N4) displayed similar lengths hovering 1 It became evident that D-g-C3N4 exceeded results other two samples aspect, showcasing elevated BET 114.2 m2/g. contrast, H-g-C3N4 T- demonstrated lower areas, registering at 59.3 70.2 Regarding storage, all were found to be able adsorb desorb within 5 min. distinct materials (H-g-C3N4, T-g-C3N4, D-g-C3N4), measured using Sivert's system under room temperature 3.7 MPa, manifested 0.68 wt%, 0.72 0.8 respectively. This observed variation capacity potentially correlation morphologies materials. Despite current capacities these being below inherent remains considerable. Achieving further advancements techniques enhance nanotube purity reduce size holds promise substantially augmenting