Synthesis of CeO2/PPy composites for use in the electrocatalytic detection of nitrite. Issue 12 (1st December 2020)

• Record Type: Journal Article
• Authors: Wang, Yihui; Xiao, Xin; Zhang, Fan; Wei, Yujie; Jiang, Xiaojuan; Xu, Liugen; Wang, Jinzhi; Li, Huanyu
• Is Part Of: Inorganic and nano-metal chemistry. Volume 50:Issue 12(2020)
• Page Start: 1308
• Page End: 1314
• Publication Date: 2020-12-01
• Subjects: CeO2/PPy composite -- sodium nitrite -- electrochemical sensor; Inorganic compounds -- Synthesis -- Periodicals; Nanostructured materials -- Periodicals; Reactivity (Chemistry) -- Periodicals; Inorganic compounds -- Synthesis; Nanostructured materials; Reactivity (Chemistry); Periodicals; 546
• DOI: 10.1080/24701556.2020.1748058
• Languages: English
• ISSNs: 2470-1556

Abstract

Abstract: CeO2 /PPy composites with obvious electrocatalytic activity were synthesized by a simple heat treatment method. The structure and morphology of CeO2 /PPy composites were characterized by XRD and SEM. The effects of Tween80/sodium dodecyl benzene sulfonate and hydrothermal reaction time on morphology control were studied, and the morphology formation mechanism was proposed. The CeO2 /PPy composite was prepared by in situ compounding. The CeO2 /PPy composite was coated on a glassy carbon electrode to obtain an electrochemical sensor for detecting sodium nitrite. The anode peak current was proportional to the concentration of sodium nitrite in the range 0.125–22.5 mmol/L ( R = 0.996), and the detection limit was 0.08 μmol/L. The CeO2 /PPy composite sensor is easily synthesized, low in equipment cost, and wide in dynamic range.