The highly-dispersed iron element decorated Ni foam was prepared by simple immersion in a ferric nitrate solution at room temperature without using acid etching, and characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), EDAX spectrum (EDAX mapping) and Raman spectroscopy. The EDAX spectrum illustrated that iron element was highly-dispersed over the entire surface of nickel foam, and the Raman spectroscopy revealed that both Ni-O and Fe-O bonds were formed on the surface of the as-prepared electrode. Moreover, the iron element decorated Ni foam electrode can be used as non-enzymatic glucose sensor and it exhibits not only an ultra-wide linear concentration range of 1–18 mmol/L with an outstanding sensitivity of 1.0388 mA·mmol/(L·cm²), but also an excellent ability of stability and selectivity. Therefore, this work presents a simple yet effective approach to successfully modify Ni foam as non-enzymatic glucose sensor.

通过在不使用酸蚀刻的情况下在室温下简单地浸入硝酸铁溶液中即可制得高分散的装饰有铁元素的镍泡沫，并通过X射线粉末衍射（XRD），扫描电子显微镜（SEM），EDAX光谱（EDAX）进行表征制图）和拉曼光谱。EDAX光谱表明，铁元素高度分散在泡沫镍的整个表面上，拉曼光谱表明，Ni-O和Fe-O键均在所制备电极的表面上形成。此外，铁元素装饰的镍泡沫电极可以用作非酶葡萄糖传感器，它不仅具有1-18 mmol / L的超宽线性浓度范围，而且具有1.0388 mA·mmol /（L·厘米²），还具有出色的稳定性和选择性。因此，这项工作提出了一种简单而有效的方法，可以成功地将泡沫镍改性为非酶葡萄糖传感器。