Co-operative motion of multiple benzoquinone disks at the air–water interface

Literature Information

Publication Date 2015-10-08
DOI 10.1039/C5CP04471E
Impact Factor 3.676
Authors

Jennifer E. Satterwhite-Warden, Dilip K. Kondepudi


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Abstract

Self-motion of physical-chemical systems is a promising avenue for studying and developing mechanical functions with inanimate systems. In this paper, we investigate spontaneous motion of collections of solid macroscopic benzoquinone (BQ) disks at the air–water interface without intervention of chemical reactions. The BQ particles slowly dissolve and create heterogeneous interfacial tension fields on the water surface that drive the motion. Spontaneous, continuous locomotion was observed between multiple BQ particles, along with coupling, collisions, cycling and collective foraging for interfacial free energy. Analysis of the motion suggests co-operative behavior depends strongly on particle shape.

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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