BibTex format
@article{Yang:2024:10.1002/aenm.202401298,
author = {Yang, M and Oldham, L and Daboczi, M and Baghdadi, Y and Cui, J and Benetti, D and Zhang, W and Durrant, JR and Hankin, A and Eslava, S},
doi = {10.1002/aenm.202401298},
journal = {Advanced Energy Materials},
title = {Advancing hematite photoanodes for photoelectrochemical water splitting: the impact of g-C3N4 supported Ni-CoP on photogenerated hole dynamics},
url = {http://dx.doi.org/10.1002/aenm.202401298},
volume = {14},
year = {2024}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - The increasing demand for clean hydrogen necessitates the rapid development of efficient photoanodes to catalyze the water oxidation half-reaction effectively. Here a strategy is introduced to fabricate photoanodes that synergistically combine and leverage the properties of porous Ti-doped hematite (Ti-Fe2O3) and graphitic carbon nitride (g-C3N4) nanosheets anchored with in situ grown Ni-doped CoP co-catalyst (Ni-CoP). The resulting hybrid photoanodes exhibit >7 times higher photocurrent density at +1.23 VRHE compared with Ti-Fe2O3 photoanodes. Comprehensive characterization techniques, including ambient photoemission spectroscopy, intensity-modulated photocurrent spectroscopy, and transient absorption spectroscopy complementarily reveal the key impact of g-C3N4 in these composites with enhanced solar oxygen evolution reaction: The incorporation of g-C3N4 leads to enhanced charge separation through a type-II heterojunction, thereby increasing the hole flux at the surface, and extending the charge carrier lifetime to the ms-s range needed for water oxidation. Additionally, g-C3N4 facilitates efficient transfer of photogenerated holes to the fine Ni-CoP nanoparticles confined in the graphitic matrix for a boosted oxygen evolution reaction. These findings highlight the advantages of complex heterostructure photoanodes and demonstrate a new application of g-C3N4 as a multifunctional support of co-catalysts for future photoanodes with enhanced performance.
AU - Yang,M
AU - Oldham,L
AU - Daboczi,M
AU - Baghdadi,Y
AU - Cui,J
AU - Benetti,D
AU - Zhang,W
AU - Durrant,JR
AU - Hankin,A
AU - Eslava,S
DO - 10.1002/aenm.202401298
PY - 2024///
SN - 1614-6832
TI - Advancing hematite photoanodes for photoelectrochemical water splitting: the impact of g-C3N4 supported Ni-CoP on photogenerated hole dynamics
T2 - Advanced Energy Materials
UR - http://dx.doi.org/10.1002/aenm.202401298
UR - https://onlinelibrary.wiley.com/doi/10.1002/aenm.202401298
UR - http://hdl.handle.net/10044/1/114225
VL - 14
ER -