Laser induced graphene-based glucose biofuel cell
Laser induced graphene-based glucose biofuel cell
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DOI：
10.1109/sensors47087.2021.9639554
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发表时间：
2021-10
期刊：
影响因子：
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通讯作者：
Md. Faruk Hossain;G. Slaughter
中科院分区：
文献类型：
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作者：
Md. Faruk Hossain;G. Slaughter
提出了一种利用激光诱导三维石墨烯（LIG）基底与催化活性纳米材料集成的葡萄糖生物燃料电池。LIG阳极包含固定在还原氧化石墨烯上的葡萄糖脱氢酶和用于葡萄糖氧化的多壁碳纳米管（RGO/MWCNT）纳米复合材料。用RGO/MWCNTs和银氧化物（Ag 2 O）纳米复合材料对LIG阴极进行改性以用于氧的还原。组装的生物燃料电池表现出线性峰值功率响应高达18 mM葡萄糖与灵敏度为0.63 μW mM-1 cm-2，并表现出良好的线性（r2 = 0.99）。葡萄糖生物燃料电池的开路电压为0.365 V，电池电压为0.25 V时的最大功率密度为11.3 μW cm−2，在18 mM葡萄糖中运行时的短路电流密度为45.18 μA cm−2。循环伏安法显示该电极对葡萄糖的检测具有相似的线性。这些结果表明，基于LIG的生物电极在混合生物燃料电池和生物传感器技术的发展中提供了广泛的应用前景。
A glucose biofuel cell is presented using laser induced 3D graphene (LIG) substrate integrated with catalytic active nanomaterials for harnessing the biochemical energy of glucose. The LIG anode comprised glucose dehydrogenase immobilized on reduced graphene oxide and multiwalled carbon nanotubes (RGO/MWCNTs) nanocomposite for glucose oxidation. The LIG cathode is modified with RGO/MWCNTs and silver oxide (Ag2O) nanocomposites for the reduction of oxygen. The assembled biofuel cell exhibited a linear peak power response up to 18 mM glucose with sensitivity of 0.63 μW mM-1 cm−2 and exhibited good linearity (r2 = 0.99). The glucose biofuel cell showed an open-circuit voltage of 0.365 V, a maximum power density of 11.3 μW cm−2 at a cell voltage of 0.25 V, and a short-circuit current density of 45.18 μA cm−2 when operating in 18 mM glucose. Cyclic voltammetry revealed the bioanode exhibited similar linearity for the detection of glucose. These results demonstrate that LIG based bioelectrodes offer great promise for diverse applications in the development of hybrid biofuel cell and biosensor technology.