Water-Resistant Perovskite-Inspired Copper/Silver Pnictohalide Nanocrystals for Photoelectrochemical Water Splitting
(2023) In Electrochimica Acta 462.- Abstract
- Lead halide perovskites (LHPs) photoelectrodes for photoelectrochemical (PEC) water splitting are promising candidates for solar-to-fuel conversion. However, the poor stability of LHPs in aqueous electrolyte media, together with the toxicity of lead, restricts the practical application of LHP photoelectrodes. Herein, we report the first-ever colloidal synthesis of quaternary Cu1.4Ag0.6BiI5 nanocrystals (NCs), a new lead-free perovskite-inspired nanomaterial, by a facile hot injection method. The Cu1.4Ag0.6BiI5 NCs exhibit an extraordinary water resistance, due to the well-defined coverage of hydrophobic ligands on the surface of NCs with unique layered cation disordered structure. Together with their high structural stability, the... (More)
- Lead halide perovskites (LHPs) photoelectrodes for photoelectrochemical (PEC) water splitting are promising candidates for solar-to-fuel conversion. However, the poor stability of LHPs in aqueous electrolyte media, together with the toxicity of lead, restricts the practical application of LHP photoelectrodes. Herein, we report the first-ever colloidal synthesis of quaternary Cu1.4Ag0.6BiI5 nanocrystals (NCs), a new lead-free perovskite-inspired nanomaterial, by a facile hot injection method. The Cu1.4Ag0.6BiI5 NCs exhibit an extraordinary water resistance, due to the well-defined coverage of hydrophobic ligands on the surface of NCs with unique layered cation disordered structure. Together with their high structural stability, the Cu1.4Ag0.6BiI5 NCs-based photoanode displays a maximum photocurrent density of 4.62 mA cm−2 at 1.23 V vs. reversible hydrogen electrode, and an applied bias photo-to-current efficiency of 2.94% without any protective layer. Our study highlights the great potential of lead-free Cu1.4Ag0.6BiI5 NCs-based photoelectrodes for a wide range of low-cost, eco-friendly, and high-performance PEC applications. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/dc725e70-76df-4a87-bc12-e9baf5512254
- author
- Liu, Maning LU ; Grandhi, G Krishnamurthy ; Al-Anesi, Basheer ; Ali-Löytty, Harri ; Lahtonen, Kimmo ; Grisorio, Roberto and Vivo, Paola
- organization
- publishing date
- 2023-06
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Electrochimica Acta
- volume
- 462
- article number
- 142734
- publisher
- Pergamon Press Ltd.
- external identifiers
-
- scopus:85161905739
- ISSN
- 0013-4686
- DOI
- 10.1016/j.electacta.2023.142734
- language
- English
- LU publication?
- yes
- id
- dc725e70-76df-4a87-bc12-e9baf5512254
- date added to LUP
- 2023-06-14 20:58:27
- date last changed
- 2023-09-05 09:41:48
@article{dc725e70-76df-4a87-bc12-e9baf5512254, abstract = {{Lead halide perovskites (LHPs) photoelectrodes for photoelectrochemical (PEC) water splitting are promising candidates for solar-to-fuel conversion. However, the poor stability of LHPs in aqueous electrolyte media, together with the toxicity of lead, restricts the practical application of LHP photoelectrodes. Herein, we report the first-ever colloidal synthesis of quaternary Cu1.4Ag0.6BiI5 nanocrystals (NCs), a new lead-free perovskite-inspired nanomaterial, by a facile hot injection method. The Cu1.4Ag0.6BiI5 NCs exhibit an extraordinary water resistance, due to the well-defined coverage of hydrophobic ligands on the surface of NCs with unique layered cation disordered structure. Together with their high structural stability, the Cu1.4Ag0.6BiI5 NCs-based photoanode displays a maximum photocurrent density of 4.62 mA cm−2 at 1.23 V vs. reversible hydrogen electrode, and an applied bias photo-to-current efficiency of 2.94% without any protective layer. Our study highlights the great potential of lead-free Cu1.4Ag0.6BiI5 NCs-based photoelectrodes for a wide range of low-cost, eco-friendly, and high-performance PEC applications.}}, author = {{Liu, Maning and Grandhi, G Krishnamurthy and Al-Anesi, Basheer and Ali-Löytty, Harri and Lahtonen, Kimmo and Grisorio, Roberto and Vivo, Paola}}, issn = {{0013-4686}}, language = {{eng}}, publisher = {{Pergamon Press Ltd.}}, series = {{Electrochimica Acta}}, title = {{Water-Resistant Perovskite-Inspired Copper/Silver Pnictohalide Nanocrystals for Photoelectrochemical Water Splitting}}, url = {{http://dx.doi.org/10.1016/j.electacta.2023.142734}}, doi = {{10.1016/j.electacta.2023.142734}}, volume = {{462}}, year = {{2023}}, }