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- Title
Micromotor-Based Energy Generation.
- Authors
Singh, Virendra V.; Soto, Fernando; Kaufmann, Kevin; Wang, Joseph
- Abstract
A micromotor-based strategy for energy generation, utilizing the conversion of liquid-phase hydrogen to usable hydrogen gas (H2), is described. The new motion-based H2-generation concept relies on the movement of Pt-black/Ti Janus microparticle motors in a solution of sodium borohydride (NaBH4) fuel. This is the first report of using NaBH4 for powering micromotors. The autonomous motion of these catalytic micromotors, as well as their bubble generation, leads to enhanced mixing and transport of NaBH4 towards the Pt-black catalytic surface (compared to static microparticles or films), and hence to a substantially faster rate of H2 production. The practical utility of these micromotors is illustrated by powering a hydrogen-oxygen fuel cell car by an on-board motion-based hydrogen and oxygen generation. The new micromotor approach paves the way for the development of efficient on-site energy generation for powering external devices or meeting growing demands on the energy grid.
- Subjects
MICROMOTORS; CATALYSIS; FUEL cells; GRID energy storage; NANOPARTICLES
- Publication
Angewandte Chemie, 2015, Vol 127, Issue 23, p7000
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201501971