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Efficient photoselectrochemical hydrogen production utilizing of APbI 3 (A = Na, Cs, and Li) perovskites nanorods
Author(s) -
Shaban Mohamed,
Rabia Mohamed,
Eldakrory Mahmoud G.,
Maree Ragab M.,
Ahmed Ashour M.
Publication year - 2021
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.6326
Subject(s) - perovskite (structure) , hydrogen production , nanorod , materials science , water splitting , hydrothermal circulation , scanning electron microscope , absorption (acoustics) , hexagonal phase , phase (matter) , nanotechnology , optoelectronics , hydrogen , chemical engineering , hexagonal crystal system , chemistry , crystallography , catalysis , photocatalysis , organic chemistry , engineering , biochemistry , composite material
Summary This study investigated the structural, morphological, and optical absorption of three separate perovskites (NaPbI 3 , CsPbI 3 , and LiPbI 3 ) developed by a low‐cost and massive hydrothermal production technique. For all samples, X‐ray diffraction (XRD) measurement demonstrated the growth of perovskites in the hexagonal phase along (002) orientation. From the scanning electron microscope (SEM) analyses, the perovskites have mixed morphologies between nano/micro rods and nano/microdiscs. In the visible field, NaPbI 3 demonstrated stronger light absorption than CsPbI 3 and LiPbI 3 . The prepared perovskites were tested under visible light as working electrodes for water splitting reactions using Na 2 S 2 O 3 electrolyte. With 2.76% at 405 nm, the NaPbI 3 perovskite photoelectrode in accordance with its optical properties showed the highest incident photon‐to‐current efficiency (IPCE) among the studied perovskites. Also, the NaPbI 3 perovskite demonstrated higher PEC performance with an H 2 production rate of 38 μmolh −1 cm −2 than many other reported perovskites. The studied perovskites have high stability and reproductivity for the photoelectrochemical H 2 production.