DataVXACS Applied Materials & InterfacesPaper
journal article·2021-05-12

Self-Driven Multiplex Reaction: Reactant and Product Diffusion via a Transpiration-Inspired Capillary

Bingda Chen, Feifei Qin, Meng Su, Zeying Zhang, Qi Pan, Miaomiao Zou, Xu Yang, Sisi Chen, Dominique Derome, Jan Carmeliet, Yanlin Song

ACS Applied Materials & Interfaces· Volume 13· Issue 18
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Source abstract

Abstract

When dealing with reactions of a liquid reactant and a solid catalyst, macroreactors with vigorous stirring equipment may be dangerous and cause wastage of energy. Reducing the diffusion distance and promoting reactants to reach the catalyst surface for efficient reaction remain the key challenges. Here, inspired by capillary-driven water motion in plants, we propose to implement a self-driven multiplex reaction (SMR) in nanocatalyst-loaded microchannels. Unlike the classical capillary rise, the droplet in SMR has variable pressure difference, leading to tunable flow velocity for controlling the reaction rate without any auxiliary equipment. The SMR in microchannels contributes to an increase in the reaction rate by more than 2 orders of magnitude compared to that in macroreactors. Specifically, this strategy reduces the reaction volume by 170 times, the catalyst usage by about 12 times, and the energy consumption by 50 times. This apparatus with a small volume and less catalyst content promises to provide an efficient strategy for the precise manipulation of chemical reactions.
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Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: Innovative Microfluidic and Catalytic Techniques Innovation · Electrowetting and Microfluidic Technologies · Micro and Nano Robotics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing Engineering Research Center of Nanomaterials for Green Printing Technology, Beijing National Laboratory for Molecular Sciences (BNLMS), Zhongguancun North First Street 2, 100190 Beijing, P. R. China

University of Chinese Academy of Sciences, Yuquan Road No. 19A, 100049 Beijing, P. R. China

Chair of Building Physics, Department of Mechanical and Process Engineering, ETH Zürich (Swiss Federal Institute of Technology in Zürich), Zürich 8092, Switzerland

Department of Civil and Building Engineering, Université de Sherbrooke, Sherbrooke, Quebec J1K 2R1, Canada

Funding

Ministry of Science and Technology of the People's Republic of China · K. C. Wong Education Foundation · Beijing Municipal Science and Technology Commission · Youth Innovation Promotion Association of the Chinese Academy of Sciences · National Natural Science Foundation of China · Beijing National Laboratory for Molecular Sciences

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