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用于选择性甲醇传感的高效氧化镍或氧化铜修饰的石墨烯-聚苯胺界面

Efficient nickel or copper oxides decorated graphene-polyaniline interface for application in selective methanol sensing.

作者信息

Nguyen Nhat Xuan An, Viet Hai Le, Nguyen Thi Kim Ngan, Pham Thi Nam, Nguyen Thi Thom, Huynh Le Thanh Nguyen, Pham Van Viet, Nguyen Thi Thu Trang, Thai Hoang Nguyen, Dai Lam Tran

机构信息

HCM City University of Science, Vietnam National University HCM City 227 Nguyen Van Cu HCM City Vietnam

Institute for Tropical Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Hanoi Vietnam

出版信息

RSC Adv. 2021 Aug 25;11(46):28573-28580. doi: 10.1039/d1ra04164a. eCollection 2021 Aug 23.

DOI:10.1039/d1ra04164a
PMID:35478552
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9038141/
Abstract

Graphene sheets decorated with nickel or copper oxides that were anchored on polyaniline (denoted as PANI-graphene/NiO and PANI-graphene/CuO) were prepared by a simple, easy to-control electrochemical method and applied as novel materials for sensitive and selective methanol sensing. The fabricated sensors exhibited good electrocatalytic activity, appropriate dynamic linear range (20-1300 mM), sensitivity (0.2-1.5 μA mM cm) and excellent selectivity towards methanol. It should be highlighted from the selectivity tests that no significant interference was observed from ethanol and other alcohols. To our best knowledge, using inexpensive but efficient transition metals like Ni, Cu instead of Pt, Pd and their composites with PANI, graphene would be scientifically novel and practically feasible approach for sensor fabrication that could be potentially used to identify methanol adulteration in counterfeit alcoholic beverages.

摘要

通过一种简单、易于控制的电化学方法制备了负载在聚苯胺上的、用氧化镍或氧化铜修饰的石墨烯片（分别记为PANI-石墨烯/NiO和PANI-石墨烯/CuO），并将其用作灵敏且具有选择性的甲醇传感新材料。所制备的传感器表现出良好的电催化活性、合适的动态线性范围（20 - 1300 mM）、灵敏度（0.2 - 1.5 μA mM cm）以及对甲醇优异的选择性。从选择性测试中应强调的是，未观察到乙醇和其他醇类有明显干扰。据我们所知，使用像Ni、Cu这样廉价但高效的过渡金属而非Pt、Pd及其与聚苯胺、石墨烯的复合材料，对于传感器制造而言将是一种科学新颖且实际可行的方法，有望用于识别假冒酒精饮料中的甲醇掺假。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33d4/9038141/a335c7757482/d1ra04164a-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33d4/9038141/da19ee1d8d8a/d1ra04164a-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33d4/9038141/5b2a2cc7ac61/d1ra04164a-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33d4/9038141/d0f7afe30eab/d1ra04164a-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33d4/9038141/a335c7757482/d1ra04164a-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33d4/9038141/da19ee1d8d8a/d1ra04164a-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33d4/9038141/5b2a2cc7ac61/d1ra04164a-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33d4/9038141/d0f7afe30eab/d1ra04164a-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33d4/9038141/a335c7757482/d1ra04164a-f4.jpg

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