Oxygen Microbubble Generator Enabled by Tunable Catalytic Microtubes

Sumayyah Naeem; Farah Naeem; Jinrun Liu; Vladimir A Bolaños Quiñones; Jing Zhang; Le He; Gaoshan Huang; Alexander A Solovev; Yongfeng Mei

doi:10.1002/asia.201900418

Oxygen Microbubble Generator Enabled by Tunable Catalytic Microtubes

Chem Asian J. 2019 Jul 15;14(14):2431-2434. doi: 10.1002/asia.201900418. Epub 2019 Jun 6.

Authors

Sumayyah Naeem^{1

2}, Farah Naeem^{1

2}, Jinrun Liu¹, Vladimir A Bolaños Quiñones¹, Jing Zhang³, Le He⁴, Gaoshan Huang¹, Alexander A Solovev¹, Yongfeng Mei¹

Affiliations

¹ Department of Materials Science, Fudan University, 220 Handan Road, Shanghai, 200433, People's Republic of China.
² State Key Laboratory for Modification of Chemical Fibers and Polymer Material Science and Engineering, Donghua University, Shanghai, 201620, People's Republic of China.
³ College of Science, Donghua University, Shanghai, 201620, People's Republic of China.
⁴ Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China.

PMID: 31087618
DOI: 10.1002/asia.201900418

Abstract

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.

Keywords: bubbles; catalyst; hydrogen peroxide; microtubes; oxygen.

Abstract

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