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Corrosion‐Mediated Self‐Assembly (CMSA): Direct Writing Towards Sculpturing of 3D Tunable Functional Nanostructures
Author(s) -
Wang Jing,
Ho Ghim Wei
Publication year - 2015
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201509356
Subject(s) - corrosion , materials science , dissolution , brass , nanostructure , nanocomposite , ionic bonding , nanotechnology , electrochemistry , photocatalysis , homogeneity (statistics) , chemical engineering , ion , metallurgy , copper , electrode , chemistry , computer science , organic chemistry , engineering , biochemistry , machine learning , catalysis
Inexpensive and readily available metal foils have been extracted and sculptured into nanocomposites without the expense of applied energy. The unwanted corrosion phenomenon has been contrarily utilized to realize desirable 3D nanostructures through a corrosion‐mediated self‐assembly (CMSA) method, which is unattainable by conventional 2D patterning routes. By virtue of electrochemical dissolution/re‐deposition initiated by brass corrosion, ionic derivatives (Zn 2+ and Cu 2+ ) are continuously supplied and seized by etchant ions (PO 4 3− ) to self‐assemble into well‐defined nanocomposites. Beyond 3D geometry patterning, CMSA enables arbitrarily tailoring of structures and chemical compositions with in situ multiphase amalgamation of hybrid materials, which improves homogeneity and thus mitigates phase separation issues. Importantly, the CMSA technique is demonstrated on transition metals for functional photocatalytic applications.