Solution-Processed Ni-Based Nanocomposite Electrocatalysts: An Approach to Highly Efficient Electrochemical Water Splitting
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Other documents of the author: Noguera-Gomez, Jaume; García-Tecedor, Miguel; Sánchez Royo, Juan Francisco; Valencia, Luisa M.; de la Mata, María; Herrera Collado, Miriam; Molina, Sergio I.; Abargues, Rafael; Gimenez, Sixto
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comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
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INVESTIGACIONMetadata
Title
Solution-Processed Ni-Based Nanocomposite Electrocatalysts: An Approach to Highly Efficient Electrochemical Water SplittingAuthor (s)
Date
2021-05-10Publisher
American Chemical SocietyISSN
2574-0962Bibliographic citation
Noguera-Gómez, J.; García-Tecedor, M.; Sánchez-Royo, J. F.; Valencia Liñán, L. M.; de la Mata, M.; Herrera-Collado, M.; ; Molina, S. I.; Abargues, R.; Giménez, S. Solution-Processed Ni-Based Nanocomposite Electrocatalysts: An Approach to Highly Efficient Electrochemical Water Splitting. ACS Appl. Energy Mater. 2021, 4, 5, 5255–5264 DOI: 10.1021/acsaem.1c00776Type
info:eu-repo/semantics/articlePublisher version
https://pubs.acs.org/doi/full/10.1021/acsaem.1c00776Version
info:eu-repo/semantics/publishedVersionAbstract
In this study, we report an up-scalable and low-cost solution-processed method to in situ synthesize an earth-abundant non-stoichiometric NiOx-based electrocatalytic film for water oxidation. The catalytic activity ... [+]
In this study, we report an up-scalable and low-cost solution-processed method to in situ synthesize an earth-abundant non-stoichiometric NiOx-based electrocatalytic film for water oxidation. The catalytic activity was found to be inversely proportional to the baking temperature, which varied from 50 to 500 °C. We found the formation of a hybrid nanocomposite thin film of NiOx nanocrystals (<2 nm size) inside an acetate-based organic matrix at low temperatures (<200 °C). The defective and short-range structural order of the NiOx-based nanocomposite electrocatalysts, compatible with lattice stress, low electrical conductivity, and high density of catalytically active surface species, and higher Fe incorporation were responsible for the enhanced electrocatalytic activity. Our champion NiOx catalyst features a 358 mV overpotential at 10 mA cm–2 and more than 60 h of continuous operation without significant losses, which is a remarkable milestone for undoped NiOx electrocatalysts synthesized at nearly room temperature by a solution-processed up-scalable method. [-]
Is part of
ACS Applied Energy Materials, 2021, vol. 4, no 5Funder Name
Ministerio de Ciencia, Innovación y Universidades | Agencia Valenciana de la Innovacion (AVI)
Project code
TEC2017-86102-C2-1-R | ENE2017-85087-C3-1-R | RYC-2015-18349 | INNVAL10/18/032
Rights
info:eu-repo/semantics/openAccess
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