Electrochemistry

Electrochemistry is a discipline that deals with chemical reactions that involve an exchange of electric charges between two substances. Both chemical changes generating electric currents and chemical reactions triggered by the passage of electricity can be considered electrochemical reactions.

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News and Comment

  • Comments and Opinion |

    Classical experiments from solid-state electrochemistry can be used to determine the charge of ions in solids. This Comment also clarifies how the charge of point defects fits with the standard picture of ionic charge, and highlights differences between these electrochemical experiments and methods that probe electrons directly.

    • Roger A. De Souza
    •  & David N. Mueller
  • News and Views |

    The activity and the stability of an electrocatalyst are equally important, but the reasons behind deactivation processes still remain unresolved. Achieving a deeper understanding of the process will help to inhibit deactivation and improve revivification protocols.

    • Alessandro Minguzzi
    Nature Catalysis 3, 687-689
  • Research Highlights |

    The formation of nanobubbles can limit the efficiency of nanoelectrodes. Molecular simulations can provide important physical insights on the nanobubble nucleation process that results in the current insensitivity to applied potential.

    • Gabriella Graziano
  • News and Views |

    Suppressing the degradation of polymer electrolyte membrane fuel cells due to anode side-reactions during repetitive cell start-up/shut-down remains a formidable challenge. Now, a phase transition material of WO3 has been explored as a smart catalytic switch to enable highly selective electrocatalysis and improve fuel cell longevity.

    • Yifei Sun
    •  & Shriram Ramanathan
    Nature Catalysis 3, 609-610