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Single-Atom-Thick Active Layers Realized in Nanolaminated Ti-3(AlxCu1-x)C-2 and Its Artificial Enzyme Behavior
Chinese Acad Sci, Peoples R China; Univ Chinese Acad Sci, Peoples R China.
Chinese Acad Sci, Peoples R China.
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, Faculty of Science & Engineering.
Chinese Acad Sci, Peoples R China; Ningbo Univ, Peoples R China.
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2019 (English)In: ACS Nano, ISSN 1936-0851, E-ISSN 1936-086X, Vol. 13, no 8, p. 9198-9205Article in journal (Refereed) Published
Abstract [en]

A Ti-3(AlxCu1-x)C-2 phase with Cu atoms with a degree of ordering in the A plane is synthesized through the A site replacement reaction in CuCl2 molten salt. The weakly bonded single -atom -thick Cu layers in a Ti-3(AlxCu1-x)C-2 MAX phase provide actives sites for catalysis chemistry. As -synthesized Ti-3(AlxCu1-x)C-2 presents unusual peroxidase-like catalytic activity similar to that of natural enzymes. A fabricated Ti-3(AlxCu1-x)C-2/chitosan/glassy carbon electrode biosensor prototype also exhibits a low detection limit in the electrochemical sensing of H2O2. These results have broad implications for property tailoring in a nanolaminated MAX phase by replacing the A site with late transition elements.

Place, publisher, year, edition, pages
AMER CHEMICAL SOC , 2019. Vol. 13, no 8, p. 9198-9205
Keywords [en]
nanolaminate; MAX phase; copper; catalysis; replacement reaction
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-160432DOI: 10.1021/acsnano.9b03530ISI: 000484077800069PubMedID: 31330102OAI: oai:DiVA.org:liu-160432DiVA, id: diva2:1353457
Note

Funding Agencies|National Natural Science Foundation of China [21671195, 91426304]; Knut and Alice Wallenberg Foundation [KAW 2015.0043]; Swedish Foundation for Strategic Research [EM16-0004]; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University (Faculty Grant SFO-Mat-LiU) [2009 00971]; [RIF 14-0074]

Available from: 2019-09-23 Created: 2019-09-23 Last updated: 2019-09-23

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