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Electrodeposition of Zinc onto Au(111) and Au(100) from the Ionic Liquid [MPPip][TFSI]
Author(s) -
Schuett Fabian M.,
Heubach MarenKathrin,
Mayer Jerome,
Ceblin Maximilian U.,
Kibler Ludwig A.,
Jacob Timo
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202107195
Subject(s) - scanning electron microscope , ionic liquid , auger electron spectroscopy , zinc , scanning tunneling microscope , electrochemistry , cyclic voltammetry , chemistry , substrate (aquarium) , deposition (geology) , electrode , inorganic chemistry , ionic bonding , materials science , chemical engineering , analytical chemistry (journal) , nanotechnology , ion , organic chemistry , catalysis , paleontology , physics , oceanography , sediment , geology , nuclear physics , engineering , composite material , biology
The improvement of rechargeable zinc/air batteries was a hot topic in recent years. Predominantly, the influence of water and additives on the structure of the Zn deposit and the possible dendrite formation were studied. However, the effect of the surface structure of the underlying substrate was not focused on in detail, yet. We now show the differences in electrochemical deposition of Zn onto Au(111) and Au(100) from the ionic liquid N ‐methyl‐ N ‐propylpiperidinium bis(trifluoromethanesulfonyl)imide. The fundamental processes were initially characterized via cyclic voltammetry and in situ scanning tunnelling microscopy. Bulk deposits were then examined using Auger electron spectroscopy and scanning electron microscopy. Different structures of Zn deposits are observed during the initial stages of electrocrystallisation on both electrodes, which reveals the strong influence of the crystallographic orientation on the metal deposition of zinc on gold.