{"id":46039,"date":"2021-02-10T14:03:17","date_gmt":"2021-02-10T19:03:17","guid":{"rendered":"https:\/\/dev.inrs.ca\/?p=46039"},"modified":"2021-04-14T11:22:51","modified_gmt":"2021-04-14T15:22:51","slug":"using-a-gold-shell-to-encapsulate-copper-based-nanoparticles","status":"publish","type":"post","link":"https:\/\/dev.inrs.ca\/en\/news\/using-a-gold-shell-to-encapsulate-copper-based-nanoparticles\/","title":{"rendered":"Using a gold shell to encapsulate copper-based nanoparticles"},"content":{"rendered":"\n

An INRS discovery made the cover of the journal Chemistry of Materials<\/em>\u2019 January 2021 issue.<\/strong><\/p>\n\n\n\n

\"\"
Ilustration: Adobe Stock<\/em><\/figcaption><\/figure><\/div>\n\n\n\n

The Institut national de la recherche scientifique (INRS) researchers, directed by Professor Dongling Ma<\/a>, in collaboration with Professor Mohamed Chaker<\/a>, achieved a very high chemical stability for copper-based nanoparticles (Cu NPs) using a simple, yet effective, method.<\/p>\n\n\n\n

They are the first to demonstrate the key role of a robust compact gold shell in stabilizing Cu NPs. \u201cAlthough people previously reported the use of inert metals to protect copper, never such a strong stability has been reported\u201d, says Professor Ma, Chairholder of Canada Research Chair in Advanced Functional Nanocomposites and leader of the Nanomaterials Chemistry and Advanced Optical Characterization Lab<\/a>.<\/p>\n\n\n\n

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Cover of the journal Chemistry of Materials<\/em>\u2019 January issue.<\/figcaption><\/figure><\/div>\n\n\n\n


A metal with many applications<\/h2>\n\n\n\n

As a low-cost and earth-abundant non-noble metal, copper nanoparticles have received increasing attention for their strong and broadband absorption. However, the easy oxidation and leaching of copper seriously affect their application. With the gold shell, having excellent oxidation resistance, the team was able to maintain high chemical stability and performance under harsh conditions, such as the presence of strong oxidizing acid.<\/p>\n\n\n\n

These highly stable Cu-based nanoparticles can find many promising applications, such as seawater desalination, photocatalysis, solar energy harvesting, optoelectronics, plasmonics, molecular sensors and computer chips. Their next step will focus on scaling up the synthesis.<\/p><\/blockquote>\n\n\n\n

\u201cWe are quite excited and also very pleased to know that the significance, novelty and value of our work is well recognized among scientists in material chemistry,\u201d she says.  <\/p>\n\n\n\n


About the Study<\/strong><\/h3>\n\n\n\n

The paper \u201cUltrastable Plasmonic Cu-Based Core\u2212Shell Nanoparticles<\/a>\u201d, by Yong Wang, Qingzhe Zhang, Yongchen Wang, Lucas V. Besteiro, Yannan Liu, Haiyan Tan, Zhiming M. Wang, Alexander O. Govorov, Jin Z. Zhang, Jason K. Cooper, Jing Zhao, Guozhu Chen, Mohamed Chaker and Dongling Ma, was published in the journal Chemistry of Materials<\/em><\/a>. The study received financial support from the Natural Sciences and Engineering Research Council of Canada<\/a> (NSERC) and the Fonds de recherche du Qu\u00e9bec – Nature et technologies<\/a> (FRQNT).<\/p>\n","protected":false},"excerpt":{"rendered":"

An INRS discovery made the cover of the journal Chemistry of Materials\u2019 January issue.<\/p>\n","protected":false},"author":392,"featured_media":46345,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[688],"tags":[],"sectors":[731],"class_list":["post-46039","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-innover-a-linrs-en","sectors-materiaux-en"],"acf":[],"yoast_head":"\nUsing a gold shell to encapsulate copper-based nanoparticles | INRS<\/title>\n<meta name=\"description\" content=\"A research team at INRS achieved a very high chemical stability for copper-based nanoparticles (Cu NPs) using a simple, yet effective, method.\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" 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