Cost-effective sol-gel synthesis of porous CuO nanoparticle aggregates with tunable specific surface area

Abstract CuO nanoparticles (NPs) are applied in various key technologies, such as catalysis, energy conversion, printable electronics and nanojoining. In this study, an economic, green and easy-scalable sol-gel synthesis method was adopted to produce submicron-sized nanoporous CuO NP aggregates with...

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Auteurs principaux:	Lars Dörner, Claudia Cancellieri, Bastian Rheingans, Marc Walter, Ralf Kägi, Patrik Schmutz, Maksym V. Kovalenko, Lars P. H. Jeurgens
Format:	article
Langue:	EN
Publié:	Nature Portfolio 2019
Sujets:	Medicine R Science Q
Accès en ligne:	https://doaj.org/article/d9799a1492ff4bb8aa3f3adf9f773b89
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spelling	oai:doaj.org-article:d9799a1492ff4bb8aa3f3adf9f773b892021-12-02T15:09:53ZCost-effective sol-gel synthesis of porous CuO nanoparticle aggregates with tunable specific surface area10.1038/s41598-019-48020-82045-2322https://doaj.org/article/d9799a1492ff4bb8aa3f3adf9f773b892019-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-48020-8https://doaj.org/toc/2045-2322Abstract CuO nanoparticles (NPs) are applied in various key technologies, such as catalysis, energy conversion, printable electronics and nanojoining. In this study, an economic, green and easy-scalable sol-gel synthesis method was adopted to produce submicron-sized nanoporous CuO NP aggregates with a specific surface area > 18 m²/g. To this end, a copper-carbonate containing precursor was precipitated from a mixed solution of copper acetate and ammonia carbonate and subsequently calcinated at T ≥ 250 °C. The thus obtained CuO nanopowder is composed of weakly-bounded agglomerates, which are constituted of aggregated CuO NPs with a tunable size in the range of 100–140 nm. The CuO aggregates, in turn, are composed of equi-axed primary crystallites with a tunable crystallite size in the range of 20–40 nm. The size and shape of the primary CuO crystallites, as well as the nanoporosity of their fused CuO aggregates, can be tuned by controlled variation of the degree of supersaturation of the solution via the pH and the carbonate concentration. The synthesized submicron-sized CuO aggregates can be more easily and safely processed in the form of a solution, dispersion or paste than individual NPs, while still offering the same enhanced reactivity due to their nanoporous architecture.Lars DörnerClaudia CancellieriBastian RheingansMarc WalterRalf KägiPatrik SchmutzMaksym V. KovalenkoLars P. H. JeurgensNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-13 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lars Dörner Claudia Cancellieri Bastian Rheingans Marc Walter Ralf Kägi Patrik Schmutz Maksym V. Kovalenko Lars P. H. Jeurgens Cost-effective sol-gel synthesis of porous CuO nanoparticle aggregates with tunable specific surface area
description	Abstract CuO nanoparticles (NPs) are applied in various key technologies, such as catalysis, energy conversion, printable electronics and nanojoining. In this study, an economic, green and easy-scalable sol-gel synthesis method was adopted to produce submicron-sized nanoporous CuO NP aggregates with a specific surface area > 18 m²/g. To this end, a copper-carbonate containing precursor was precipitated from a mixed solution of copper acetate and ammonia carbonate and subsequently calcinated at T ≥ 250 °C. The thus obtained CuO nanopowder is composed of weakly-bounded agglomerates, which are constituted of aggregated CuO NPs with a tunable size in the range of 100–140 nm. The CuO aggregates, in turn, are composed of equi-axed primary crystallites with a tunable crystallite size in the range of 20–40 nm. The size and shape of the primary CuO crystallites, as well as the nanoporosity of their fused CuO aggregates, can be tuned by controlled variation of the degree of supersaturation of the solution via the pH and the carbonate concentration. The synthesized submicron-sized CuO aggregates can be more easily and safely processed in the form of a solution, dispersion or paste than individual NPs, while still offering the same enhanced reactivity due to their nanoporous architecture.
format	article
author	Lars Dörner Claudia Cancellieri Bastian Rheingans Marc Walter Ralf Kägi Patrik Schmutz Maksym V. Kovalenko Lars P. H. Jeurgens
author_facet	Lars Dörner Claudia Cancellieri Bastian Rheingans Marc Walter Ralf Kägi Patrik Schmutz Maksym V. Kovalenko Lars P. H. Jeurgens
author_sort	Lars Dörner
title	Cost-effective sol-gel synthesis of porous CuO nanoparticle aggregates with tunable specific surface area
title_short	Cost-effective sol-gel synthesis of porous CuO nanoparticle aggregates with tunable specific surface area
title_full	Cost-effective sol-gel synthesis of porous CuO nanoparticle aggregates with tunable specific surface area
title_fullStr	Cost-effective sol-gel synthesis of porous CuO nanoparticle aggregates with tunable specific surface area
title_full_unstemmed	Cost-effective sol-gel synthesis of porous CuO nanoparticle aggregates with tunable specific surface area
title_sort	cost-effective sol-gel synthesis of porous cuo nanoparticle aggregates with tunable specific surface area
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/d9799a1492ff4bb8aa3f3adf9f773b89
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Cost-effective sol-gel synthesis of porous CuO nanoparticle aggregates with tunable specific surface area

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