Theory of Chemical Kinetics and Charge Transfer based on Nonequilibrium Thermodynamics

Massachusetts Institute of Technology

Abstract

Advances in the fields of catalysis and electrochemical energy conversion often involve nanoparticles, which can have kinetics surprisingly different from the bulk material. Classical theories of chemical kinetics assume independent reactions in dilute solutions, whose rates are determined by mean concentrations. In condensed matter, strong interactions alter chemical activities and create variations that can dramatically affect the reaction rate. The extreme case is that of a reaction coupled to a phase transformation, whose kinetics must depend not only on the order parameter but also on its gradients at phase boundaries. Reaction-driven phase transformations are common in electrochemistry, when charge…

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Topics & keywords

Keywords
  • Thermodynamics
  • Chemistry
  • Non-equilibrium thermodynamics
  • Chemical physics
  • Dissolution
  • Phase (matter)
  • Kinetics
  • Ion
UN Sustainable Development Goals
  • Affordable and clean energy
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