Synthesis and size-dependent electrochemical nonenzymatic H2O2 sensing of cuprous oxide nanocubes
In this work, we reported an electrochemical approach for the nonenzymatic detection of H 2 O 2 based on a cuprous oxide (Cu 2 O) nanocube-based sensor. The Cu 2 O nanocubes were synthesized with controllable sizes from 40 nm to 360 nm through a facile additive-free aqueous solution route at room te...
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| creator | Meng, Lingyu Jiang, Deli Xing, Chaosheng Lü, Xiaomeng Chen, Min |
| description | In this work, we reported an electrochemical approach for the nonenzymatic detection of H
2
O
2
based on a cuprous oxide (Cu
2
O) nanocube-based sensor. The Cu
2
O nanocubes were synthesized with controllable sizes from 40 nm to 360 nm through a facile additive-free aqueous solution route at room temperature. The electrocatalytic activities of the Cu
2
O nanocubes with five different sizes towards H
2
O
2
were systematically explored, and it was found that the electrocatalytic activity was strongly dependent on the size of the Cu
2
O nanocubes. The cyclic voltammetry and amperometry results show that these Cu
2
O nanocubes exhibited good electrocatalytic activity with a linear response ranging from 0.5 to 8.5 mM at −0.2 V and a detection limit of 1.61 μM (S/N = 3). Furthermore, the Cu
2
O nanocubes of five different sizes have good selectivity for H
2
O
2
detection with ascorbic acid (AA), uric acid (UA) and glucose (Glu).
The smaller size Cu
2
O nanocubes can effectively increase the electrocatalytic active areas and subsequently promote electron transfer in the reduction of H
2
O
2
. |
| doi_str_mv | 10.1039/c5ra14373j |
| format | Article |
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2
O
2
based on a cuprous oxide (Cu
2
O) nanocube-based sensor. The Cu
2
O nanocubes were synthesized with controllable sizes from 40 nm to 360 nm through a facile additive-free aqueous solution route at room temperature. The electrocatalytic activities of the Cu
2
O nanocubes with five different sizes towards H
2
O
2
were systematically explored, and it was found that the electrocatalytic activity was strongly dependent on the size of the Cu
2
O nanocubes. The cyclic voltammetry and amperometry results show that these Cu
2
O nanocubes exhibited good electrocatalytic activity with a linear response ranging from 0.5 to 8.5 mM at −0.2 V and a detection limit of 1.61 μM (S/N = 3). Furthermore, the Cu
2
O nanocubes of five different sizes have good selectivity for H
2
O
2
detection with ascorbic acid (AA), uric acid (UA) and glucose (Glu).
The smaller size Cu
2
O nanocubes can effectively increase the electrocatalytic active areas and subsequently promote electron transfer in the reduction of H
2
O
2
.</description><identifier>EISSN: 2046-2069</identifier><identifier>DOI: 10.1039/c5ra14373j</identifier><language>eng</language><creationdate>2015-09</creationdate><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids></links><search><creatorcontrib>Meng, Lingyu</creatorcontrib><creatorcontrib>Jiang, Deli</creatorcontrib><creatorcontrib>Xing, Chaosheng</creatorcontrib><creatorcontrib>Lü, Xiaomeng</creatorcontrib><creatorcontrib>Chen, Min</creatorcontrib><title>Synthesis and size-dependent electrochemical nonenzymatic H2O2 sensing of cuprous oxide nanocubes</title><description>In this work, we reported an electrochemical approach for the nonenzymatic detection of H
2
O
2
based on a cuprous oxide (Cu
2
O) nanocube-based sensor. The Cu
2
O nanocubes were synthesized with controllable sizes from 40 nm to 360 nm through a facile additive-free aqueous solution route at room temperature. The electrocatalytic activities of the Cu
2
O nanocubes with five different sizes towards H
2
O
2
were systematically explored, and it was found that the electrocatalytic activity was strongly dependent on the size of the Cu
2
O nanocubes. The cyclic voltammetry and amperometry results show that these Cu
2
O nanocubes exhibited good electrocatalytic activity with a linear response ranging from 0.5 to 8.5 mM at −0.2 V and a detection limit of 1.61 μM (S/N = 3). Furthermore, the Cu
2
O nanocubes of five different sizes have good selectivity for H
2
O
2
detection with ascorbic acid (AA), uric acid (UA) and glucose (Glu).
The smaller size Cu
2
O nanocubes can effectively increase the electrocatalytic active areas and subsequently promote electron transfer in the reduction of H
2
O
2
.</description><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNp9kE9LwzAchoMgOOYu3oX4Aar512Q5ylAnDHZQzyVNfnEZbVKSFuw-vQMFbz6X9_DAe3gQuqHknhKuH2ydDRVc8eMFWjAiZMWI1FdoVcqRnJE1ZZIukHmb43iAEgo20eESTlA5GCA6iCOGDuyYkz1AH6zpcEwR4mnuzRgs3rI9wwViCfETJ4_tNOQ0FZy-ggMcTUx2aqFco0tvugKr312ij-en98222u1fXjePuyozwsdKSq-lFnZNuXGtpwKoItwKtZbMEs1oC-vaEym45gpoLbnQoqZWA_FKOc6X6PbnNxfbDDn0Js_NX4azv_vPN4Pz_Bul_16f</recordid><startdate>20150929</startdate><enddate>20150929</enddate><creator>Meng, Lingyu</creator><creator>Jiang, Deli</creator><creator>Xing, Chaosheng</creator><creator>Lü, Xiaomeng</creator><creator>Chen, Min</creator><scope/></search><sort><creationdate>20150929</creationdate><title>Synthesis and size-dependent electrochemical nonenzymatic H2O2 sensing of cuprous oxide nanocubes</title><author>Meng, Lingyu ; Jiang, Deli ; Xing, Chaosheng ; Lü, Xiaomeng ; Chen, Min</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-r203t-66f9694c813adbf14e1703c47862c0921be85f0643937e156349451c9e0f77d33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Meng, Lingyu</creatorcontrib><creatorcontrib>Jiang, Deli</creatorcontrib><creatorcontrib>Xing, Chaosheng</creatorcontrib><creatorcontrib>Lü, Xiaomeng</creatorcontrib><creatorcontrib>Chen, Min</creatorcontrib></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Meng, Lingyu</au><au>Jiang, Deli</au><au>Xing, Chaosheng</au><au>Lü, Xiaomeng</au><au>Chen, Min</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis and size-dependent electrochemical nonenzymatic H2O2 sensing of cuprous oxide nanocubes</atitle><date>2015-09-29</date><risdate>2015</risdate><volume>5</volume><issue>1</issue><spage>82496</spage><epage>8252</epage><pages>82496-8252</pages><eissn>2046-2069</eissn><abstract>In this work, we reported an electrochemical approach for the nonenzymatic detection of H
2
O
2
based on a cuprous oxide (Cu
2
O) nanocube-based sensor. The Cu
2
O nanocubes were synthesized with controllable sizes from 40 nm to 360 nm through a facile additive-free aqueous solution route at room temperature. The electrocatalytic activities of the Cu
2
O nanocubes with five different sizes towards H
2
O
2
were systematically explored, and it was found that the electrocatalytic activity was strongly dependent on the size of the Cu
2
O nanocubes. The cyclic voltammetry and amperometry results show that these Cu
2
O nanocubes exhibited good electrocatalytic activity with a linear response ranging from 0.5 to 8.5 mM at −0.2 V and a detection limit of 1.61 μM (S/N = 3). Furthermore, the Cu
2
O nanocubes of five different sizes have good selectivity for H
2
O
2
detection with ascorbic acid (AA), uric acid (UA) and glucose (Glu).
The smaller size Cu
2
O nanocubes can effectively increase the electrocatalytic active areas and subsequently promote electron transfer in the reduction of H
2
O
2
.</abstract><doi>10.1039/c5ra14373j</doi><tpages>7</tpages></addata></record> |
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| source | Royal Society Of Chemistry Journals 2008- |
| title | Synthesis and size-dependent electrochemical nonenzymatic H2O2 sensing of cuprous oxide nanocubes |
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