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Published on: February 11, 2016
Crystallinity Engineering of Hematite Nanorods for High-Efficiency Photoelectrochemical Water Splitting
Degao Wang1, Yuying Zhang1, Cheng Peng1
1Division of Physical Biology, and Bioimaging Center Shanghai Synchrotron Radiation Facility CAS Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 China.
Abstract:
An effective strategy to overcome the morphology evolution of hematite nanorods under high-temperature activation is presented, via tuning the crystallinity and sintering temperature by substrate modification. It is demonstrated that the as-prepared doping-free hematite nanorods with fine nanostructures obtain a significantly higher photocurrent density of 2.12 mA cm-2 at 1.23 V versus RHE, due to effective charge separation and transfer.
