Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, Laboratory of Optical Probes and Bioelectrocatalysis (LOPAB), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, P. R. China.
Angew Chem Int Ed Engl. 2018 Jun 4;57(23):6819-6824. doi: 10.1002/anie.201801369. Epub 2018 May 2.
A facile strategy is presented to form 3D porous Cu@Cu O aerogel networks by self-assembling Cu@Cu O nanoparticles with the diameters of ca. 40 nm for constructing catalytic interfaces. Unexpectedly, the prepared Cu@Cu O aerogel networks display excellent electrocatalytic activity to glucose oxidation at a low onset potential of ca. 0.25 V. Moreover, the Cu@Cu O aerogels also can act as mimicking-enzymes including horseradish peroxidase and NADH peroxidase, and show obvious enzymatic catalytic activities to the oxidation of dopamine (DA), o-phenyldiamine (OPD), 3,3,5,5-tetramethylbenzidine (TMB), and dihydronicotinamide adenine dinucleotide (NADH) in the presence of H O . These 3D Cu@Cu O aerogel networks are a new class of porous catalytic materials as mimic peroxidases and electrocatalysts and offer a novel platform to construct catalytic interfaces for promising applications in electrochemical sensors and artificial enzymatic catalytic systems.
提出了一种简便的策略，通过自组装直径约为 40nm 的 Cu@CuO 纳米粒子形成 3D 多孔 Cu@CuO 气凝胶网络，用于构建催化界面。出乎意料的是，所制备的 Cu@CuO 气凝胶网络在约 0.25V 的低起始电位下对葡萄糖氧化表现出优异的电催化活性。此外，Cu@CuO 气凝胶还可以模拟辣根过氧化物酶和烟酰胺腺嘌呤二核苷酸（NADH）过氧化物酶等酶，并且在 H2O2存在下对多巴胺（DA）、邻苯二胺（OPD）、3,3,5,5-四甲基联苯胺（TMB）和烟酰胺腺嘌呤二核苷酸（NADH）的氧化表现出明显的酶催化活性。这些 3D Cu@CuO 气凝胶网络是一类新型的多孔催化材料，可作为模拟过氧化物酶和电催化剂，并为构建用于电化学传感器和人工酶催化系统的有前途的催化界面提供了新平台。
