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Oxygen Microbubble Generator Enabled by Tunable Catalytic Microtubes
Author(s) -
Naeem Sumayyah,
Naeem Farah,
Liu Jinrun,
Quiñones Vladimir A. Bolaños,
Zhang Jing,
He Le,
Huang Gaoshan,
Solovev Alexander A.,
Mei Yongfeng
Publication year - 2019
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201900418
Subject(s) - hydrogen peroxide , bubble , oxygen , microbubbles , materials science , catalysis , volume (thermodynamics) , radius , tube (container) , volumetric flow rate , chemical engineering , hydrogen , nanotechnology , chemistry , composite material , ultrasound , organic chemistry , thermodynamics , acoustics , physics , computer security , computer science , engineering , parallel computing
Rolled‐up catalytic Ti/Cr/Pt microtubes, consisting of inorganic nanomembranes integrated on‐chip, are used to generate oxygen microbubbles in solutions of hydrogen peroxide. Oxygen bubble parameters (frequency, radius and volumetric flow rate) are optimized at different concentrations of hydrogen peroxide and common dish soap. Increasing the aspect ratio of the microtube (e.g., tube length/diameter) leads to the formation of smaller bubbles, but at higher frequencies. Longer tubes produce less total oxygen volume in comparison to shorter tubes. We attribute this observation to the specific dynamic behaviours of bubbles in tubes.