3D conductive monolithic carbons from pyrolyzed bamboo for microfluidic self-heating system

• DOI: 10.1016/j.carbon.2023.118214
• Publication Date: 2023-06-15T12:43:47Z
• Authors: Layne O.L. Gontijo; Mario N. Barbosa ...; Druval Santos de Sá; Sonia Letichevsky; Marlin J. Pedrozo...; Ricardo Q. Aucélio; Ivani S. Bott; Haimon Diniz Lope...; Benjamin Fragneaud; Indhira Oliveira ...; André Linhares Rossi; Letizia Savio; Giovanni Carraro; Dosen Anja; Fernando Lazaro F...; Ghavami Khosrow; Sidnei Paciornik; Omar Ginoble Pandoli
• Keywords: Carbon fibers

Bamboo, like wood, is a promising natural template for biobased devices that takes advantage of its hierarchical architecture, microarray channels, anisotropic mechanical and electrical properties. Herein we report low heat thermal treatment (HTT, 700-1000 °C) bamboo specimens to obtain bamboo-based graphitic with thermoelectric electrochemical The preservation the highly architecture three-dimensional carbon material (3D-CM) allowed adding specific properties depending on HTT pristine specimens. High electric conductivity (σ, 839 S/m) was observed at 1000 °C showing remarkable potential application as working electrode. annealed 700 showed higher resistivity (ρ, 0.15 Ω m, σ, 6.6 S/m), (1.77 W/m K), heating rates (1.0 °C/s). pyrolyzed biomass (B-700) used 3D microfluidic heater polar solvents (H2O ethylene glycol) in flow mode up their boiling points. A 2D hotplate built-up warm solvent batch mode. complete chemical physical characterization samples us determine structural compositions, cellulose crystalline structure phase transition graphitic/turbostratic carbon, unprecedented bambootronics bio-devices.