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3D‐Printed Conical Arrays of TiO 2 Electrodes for Enhanced Photoelectrochemical Water Splitting
Author(s) -
Lee ChongYong,
Taylor Adam C.,
Beirne Stephen,
Wallace Gordon G.
Publication year - 2017
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201701060
Subject(s) - materials science , fabrication , electrode , nanotechnology , water splitting , 3d printing , conical surface , deposition (geology) , optoelectronics , photocatalysis , composite material , catalysis , medicine , paleontology , biochemistry , chemistry , alternative medicine , pathology , sediment , biology
Control over the topography of semiconducting materials can lead to enhanced performances in photoelectrochemical related applications. One means of implementing this is through direct patterning of metal‐based substrates, though this is inadequately developed. Conventional techniques for patterned fabrication commonly involve technologically demanding and tedious processes. 3D printing, a form of additive fabrication, enables creation of a 3D object by deposition of successive layers of material via computer control. In this work, the feasibility of fabricating metal‐based 3D printed photoelectrodes is explored. Electrodes comprised of conical arrays are fabricated and the performance for photoelectrochemical water splitting is further enhanced by the direct growth of TiO2 nanotubes on this platform. 3D metal printing provides a flexible and versatile approach for the design and fabrication of novel electrode structures.