RT Journal Article
T1 Adaptive Catalytic Nanointerfaces for Controlled Hydrogen Evolution: an in Situ Electrochemical Approach
A1 Herreros Lucas, Carlos
A1 Guillén Soler, Melanie
A1 Vizcaíno Anaya, Lucía
A1 Murray, Glen
A1 Aygün, Mehtap
A1 Vila Fungueiriño, José Manuel
A1 Giménez López, María del Carmen
AB Precious metal nanoparticles in electrocatalytic applications tend to be single-use, becoming unusable afterward. Here, this is demonstrated that the electrocatalytic response of these nanoparticles, when confined at the step-edges of corrugated carbon nanofibers interiors, can be switched on again at will by simply introducing sulfur as an inorganic mediator. To achieve this, an electrochemical methodology is developed that triggers the rapid surface reconfiguration of confined, deactivated nanoparticles (PdSx) involving the release of sulfur to yield highly active crystalline Pd(0) nanoparticles, confined polysulfides, and sulfur-terminated carbon step-edges. More importantly, the electrochemical performance can be systematically switched from a highly active mode, in which polysulfides enhance the hydrogen adsorption on palladium, to a much less active mode, called the resting mode, in which sulfur (formed by the oxidation of polysulfides) passivates the active Pd(0) nanoparticle surface. This discovery introduces a new protocol to control nanoparticle performance for catalytic reactions, and more crucially, to extend their lifespan.
PB Wiley
YR 2025
FD 2025-05-23
LK https://hdl.handle.net/10347/42404
UL https://hdl.handle.net/10347/42404
LA eng
NO C. Herreros-Lucas, M. Guillén-Soler, L. Vizcaíno-Anaya, G. Murray, M. Aygün, J. M. Vila-Fungueiriño, M. del Carmen Giménez-López, Adaptive Catalytic Nanointerfaces for Controlled Hydrogen Evolution: an in Situ Electrochemical Approach. Adv. Sci. 2025, e05104. https://doi.org/10.1002/advs.202505104
NO This work has received financial support from the Ministry of Science of Spain (Projects No. PID2021-127341OB-I00 and TED2021-131451B-C21 for M.G.-L.), the European Research Council (ERC) (Starting Investigator Grant (NANOCOMP-679124) and Proof of Concept (ZABCAT-966743) for M.G.-L.), the Xunta de Galicia (Centro Singular de Investigación de Galicia accreditation 2023–2027, ED431G 2023/03; ED431C 2024/05, the Oportunius Research Professor Program (Gain)), the European Union (European Regional Development Fund – ERDF). G.M. acknowledges The University of Nottingham for his Predoctoral Fellowship. C.H.-L., M.G.-S., and M.A. were supported by the project ERC-StG-679124. L.V.-A. Acknowledges Ministry of Universities of Spain for her Predoctoral Fellowship FPU2020. J.M.V.-F. Acknowledges Spanish Ministry of Science and Innovation for his postdoctoral grant (IJC2020-044369-I).
DS Minerva
RD 24 abr 2026