biostudies-literatureKao SHMinistry of Science and Technology Taiwan3867https://www.ebi.ac.uk/biostudies/studies/S-EPMC9653567biostudies-literatureUnknown12(21)In this paper, a facile and rapid aqueous-based electrochemical technique was used for the phase conversion of Ni into Ni(OH)₂ thin film. The Ni(OH)₂ thin film was directly converted and coated onto the network surface of Ni foam (NF) via the self-hydroxylation process under alkaline conditions using a simple cyclic voltammetry (CV) strategy. The as-formed and coated Ni(OH)₂ thin film on the NF was used as the catalyst layer for the direct growth of carbon nanotubes (CNTs). The self-converted Ni(OH)₂ thin film is a good catalytic layer for the growth of CNTs due to the fact that the OH^- of the Ni(OH)₂ can be reduced to H₂O to promote the growth of CNTs during the CVD process, and therefore enabling the dense and uNanomaterials (Basel, Switzerland)Facile and Rapid Electrochemical Conversion of Ni into Ni(OH)₂ Thin Film as the Catalyst for Direct Growth of Carbon Nanotubes on Ni Foam for Supercapacitors.PMC9653567MOST 107-2221-E-131-007-MY3Anuratha KSLin JYKao SHHsieh CKWei SYfalseFacile and Rapid Electrochemical Conversion of Ni into Ni(OH)₂ Thin Film as the Catalyst for Direct Growth of Carbon Nanotubes on Ni Foam for Supercapacitors.In this paper, a facile and rapid aqueous-based electrochemical technique was used for the phase conversion of Ni into Ni(OH)₂ thin film. The Ni(OH)₂ thin film was directly converted and coated onto the network surface of Ni foam (NF) via the self-hydroxylation process under alkaline conditions using a simple cyclic voltammetry (CV) strategy. The as-formed and coated Ni(OH)₂ thin film on the NF was used as the catalyst layer for the direct growth of carbon nanotubes (CNTs). The self-converted Ni(OH)₂ thin film is a good catalytic layer for the growth of CNTs due to the fact that the OH^- of the Ni(OH)₂ can be reduced to H₂O to promote the growth of CNTs during the CVD process, and therefore enabling the dense and u2022-01-01T00:00:00Z2022 Nov2025-04-22T12:28:33.918Z2025-04-06T00:21:07.064ZS-EPMC96535673636464310.3390/nano12213867