摘要：采用氮和硫共掺杂石墨烯(NSG)作为固定CuO纳米颗粒的新型载体材料,并将获得的CuO-NSG作为电催化葡萄糖氧化(EGO)的催化剂应用于非酶葡萄糖传感器,解决EGO催化剂的稀缺性和高成本性。结果表明,NSG赋予CuO-NSG大的表面积,且NSG和CuO之间存在强界面耦合。由于NSG的显著效果和NSG与CuO的协同效应,CuO-NSG显示出比CuO和CuO-还原氧化石墨烯(RGO)更高的EGO活性。基于CuO-NSG的传感器显示出优异的葡萄糖感测性能,表现出1722μA·mmol·L^-1·cm^-2的高灵敏度和0.07μmmol·L^-1的低检测限及在实际样品分析中的选择性、再现性、稳定性和可行性的良好检测性能。

Abstract: In this paper，nitrogen and sulfur co-doped graphene( NSG) was used as a new carrier material for fixation of CuO nanoparticles，and the obtained CuO－NSG was applied as a catalyst for electrocatalytic glucose oxidation( EGO) to non-enzymatic glucose sensor to solve the scarcity and high cost of EGO catalyst．The results show that the NSG give CuO－NSG greater surface area，and strong interfacial coupling between NSG and CuO．Due to the significant effect of NSG and the synergistic effect of NSG and CuO，CuO－NSG showed higher EGO activity than CuO and CuO－ＲGO．The CuO－NSG based sensor demonstrated excellent glucose sensing performance with high sensitivity of 1 722 μA·mmol·L ^-1 cm^－2 and low detection limit of 0．07 μmmol·L^－1 ，as well as good detection performance in selectivity，reproducibility，stability and feasibility in actual sample analysis． 

Keywords: nitrogen and sulfur doped grapheme; electric catalytic; CuO nanoparticle; non-enzymatic glucose sensor