A One-Step Self-Flowering Method toward Programmable Ultrathin Porous Carbon-Based Materials for Microwave Absorption and Hydrogen Evolution

Ultrathin 2D porous carbon-based materials offer numerous fascinating electrical, catalytic, and mechanical properties, which hold great promise in various applications. However, it remains a formidable challenge to fabricate these materials with tunable morphology and composition by a simple synthe...

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Published inSmall (Weinheim an der Bergstrasse, Germany) Vol. 19; no. 36; p. e2302132
Main Authors Ding, Rong, Wang, Yan-Qin, Zeng, Fu-Rong, Liu, Bo-Wen, Wang, Yu-Zhong, Zhao, Hai-Bo
Format Journal Article
LanguageEnglish
Published Germany Wiley Subscription Services, Inc 01.09.2023
Subjects
Carbon
Composite materials
Flowering
Hydrogen evolution
Mechanical properties
Microwave absorption
Nanotechnology
Pneumatics
Porous materials
Pyrolysis
Zinc oxide
one-step self-flowering
hydrogen evolution
ultrathin 2D porous materials
programmability
microwave absorption
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Summary:Ultrathin 2D porous carbon-based materials offer numerous fascinating electrical, catalytic, and mechanical properties, which hold great promise in various applications. However, it remains a formidable challenge to fabricate these materials with tunable morphology and composition by a simple synthesis strategy. Here, a facile one-step self-flowering method without purification and harsh conditions is reported for large-scale fabrication of high-quality ultrathin (≈1.5 nm) N-doped porous carbon nanosheets (NPC) and their composites. It is demonstrated that the layered tannic/oxamide (TA/oxamide) hybrid is spontaneously blown, exfoliated, bloomed, in situ pore-formed, and aromatized during pyrolysis to form flower-like aggregated NPC. This universal one-step self-flowering system is compatible with various precursors to construct multiscale NPC-based composites (Ru@NPC, ZnO@NPC, MoS @NPC, Co@NPC, rGO@NPC, etc.). Notably, the programmable architecture enables NPC-based materials with excellent multifunctional performances, such as microwave absorption and hydrogen evolution. This work provides a facile, universal, scalable, and eco-friendly avenue to fabricate functional ultrathin porous carbon-based materials with programmability.
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ISSN:1613-6810
1613-6829
DOI:10.1002/smll.202302132