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Electrochemical recycling of lead from hybrid organic–inorganic perovskites using deep eutectic solvents
Authors:
Christopher G
Poll
(Imperial College London)
,
Geoffrey
Nelson
(Imperial College London)
,
David M
Pickup
(University of Kent)
,
Alan V
Chadwick
(University of Kent)
,
Jason
Riley
(Imperial College London)
,
David
Payne
(Imperial College London)
Co-authored by industrial partner:
No
Type:
Journal Paper
Journal:
Green Chemistry
, VOL 18
, PAGES 2946-2955
State:
Published (Approved)
Published:
March 2016
Diamond Proposal Number(s):
12198
Abstract: The emerging field of lead-based hybrid organic-inorganic perovskite (HOIP) photovoltaic devices has attracted a great deal of attention due to their very high conversion efficiencies and straightforward fabrication methods. Unfortunately a major obstacle to commercialization remains the high toxicity of lead. Whilst to date the focus has been on understanding and improving device performance, there has been no reported effort to develop methods to recover and recycle the lead from these materials. In this work we demonstrate a simple, low-cost and environmentally friendly method of recycling lead from HOIP photovoltaics by dissolution and selective electrodeposition using a deep eutectic solvent. We demonstrate that up to 99.8% of the lead is removed from the solvent. The results presented here provide a viable solution to lead-based HOIP photovoltaic recycling, and also open the possibility for providing an alternative method to conventional smelting in the recovery and recycling of different lead-based energy materials.
Diamond Keywords: Photovoltaics; Semiconductors
Subject Areas:
Chemistry,
Materials,
Energy
Instruments:
B18-Core EXAFS
Added On:
31/03/2016 10:41
Discipline Tags:
Earth Sciences & Environment
Sustainable Energy Systems
Energy
Climate Change
Physical Chemistry
Energy Materials
Chemistry
Materials Science
Perovskites
Metallurgy
Technical Tags:
Spectroscopy
X-ray Absorption Spectroscopy (XAS)
Extended X-ray Absorption Fine Structure (EXAFS)