{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Ganguly A"],"funding":["US-Ireland Research and Development Partnership Programme","Engineering and Physical Sciences Research Council"],"pagination":["12339-12352"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC10941191"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["16(10)"],"pubmed_abstract":["Progress in electrochemical water-splitting devices as future renewable and clean energy systems requires the development of electrodes composed of efficient and earth-abundant bifunctional electrocatalysts. This study reveals a novel flexible and bifunctional electrode (<i><b>NiO@CNTR</b></i>) by hybridizing macroscopically assembled carbon nanotube ribbons (<b><i>CNTRs</i></b>) and atmospheric plasma-synthesized NiO quantum dots (QDs) with varied loadings to demonstrate bifunctional electrocatalytic activity for stable and efficient overall water-splitting (OWS) applications. Comparative studies on the effect of different electrolytes, e.g., acid and alkaline, reveal a strong preference for alkaline electrolytes for the developed <i><b>NiO@CNTR</b></i> electrode, suggesting its bifunctionality for both HER and OER activities. Our proposed <i><b>NiO@CNTR</b></i> electrode demonstrates significantly enhanced overall catalytic performance in a two-electrode alkaline electrolyzer cell configuration by assembling the same electrode materials as both the anode and the cathode, with a remarkable long-standing stability retaining ∼100% of the initial current after a 100 h long OWS run, which is attributed to the \"synergistic coupling\" between NiO QD catalysts and the CNTR matrix. Interestingly, the developed electrode exhibits a cell potential (<i>E</i><sub>10</sub>) of only 1.81 V with significantly low NiO QD loading (83 μg/cm<sup>2</sup>) compared to other catalyst loading values reported in the literature. This study demonstrates a potential class of carbon-based electrodes with single-metal-based bifunctional catalysts that opens up a cost-effective and large-scale pathway for further development of catalysts and their loading engineering suitable for alkaline-based OWS applications and green hydrogen generation."],"journal":["ACS applied materials & interfaces"],"pubmed_title":["Flexible Bifunctional Electrode for Alkaline Water Splitting with Long-Term Stability."],"pmcid":["PMC10941191"],"funding_grant_id":["EP/M015211/1","EP/T016000/1","EP/V055232/1","EP/R008841/1","USI160"],"pubmed_authors":["Ganguly A","Mariotti D","McGlynn RJ","Boies A","Maguire P","Chakrabarti S"],"additional_accession":[]},"is_claimable":false,"name":"Flexible Bifunctional Electrode for Alkaline Water Splitting with Long-Term Stability.","description":"Progress in electrochemical water-splitting devices as future renewable and clean energy systems requires the development of electrodes composed of efficient and earth-abundant bifunctional electrocatalysts. This study reveals a novel flexible and bifunctional electrode (<i><b>NiO@CNTR</b></i>) by hybridizing macroscopically assembled carbon nanotube ribbons (<b><i>CNTRs</i></b>) and atmospheric plasma-synthesized NiO quantum dots (QDs) with varied loadings to demonstrate bifunctional electrocatalytic activity for stable and efficient overall water-splitting (OWS) applications. Comparative studies on the effect of different electrolytes, e.g., acid and alkaline, reveal a strong preference for alkaline electrolytes for the developed <i><b>NiO@CNTR</b></i> electrode, suggesting its bifunctionality for both HER and OER activities. Our proposed <i><b>NiO@CNTR</b></i> electrode demonstrates significantly enhanced overall catalytic performance in a two-electrode alkaline electrolyzer cell configuration by assembling the same electrode materials as both the anode and the cathode, with a remarkable long-standing stability retaining ∼100% of the initial current after a 100 h long OWS run, which is attributed to the \"synergistic coupling\" between NiO QD catalysts and the CNTR matrix. Interestingly, the developed electrode exhibits a cell potential (<i>E</i><sub>10</sub>) of only 1.81 V with significantly low NiO QD loading (83 μg/cm<sup>2</sup>) compared to other catalyst loading values reported in the literature. This study demonstrates a potential class of carbon-based electrodes with single-metal-based bifunctional catalysts that opens up a cost-effective and large-scale pathway for further development of catalysts and their loading engineering suitable for alkaline-based OWS applications and green hydrogen generation.","dates":{"release":"2024-01-01T00:00:00Z","publication":"2024 Mar","modification":"2026-06-28T03:18:06.893Z","creation":"2025-04-04T20:18:43.386Z"},"accession":"S-EPMC10941191","cross_references":{"pubmed":["38425008"],"doi":["10.1021/acsami.3c12944"]}}