双酶样碳化物衍生碳的直接合成 Ti AlC MAX 的温和电化学氧化。

Direct Synthesis of Bienzyme-like Carbide-derived Carbons Mild Electrochemical Oxidation of Ti AlC MAX.

机构信息

Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, Qingdao 266071, Shandong, China;Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Medical School, Southeast University, Nanjing 211189, Jiangsu, China.

Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, Qingdao 266071, Shandong, China.

出版信息

Biomed Environ Sci. 2022 Mar 20;35(3):215-224. doi: 10.3967/bes2022.030.

DOI:10.3967/bes2022.030

PMID:35317901

Abstract

OBJECTIVE

To develop effective alternatives to natural enzymes, it is crucial to develop nanozymes that are economical, resource efficient, and environmentally conscious. Carbon nanomaterials that have enzyme-like activities have been extensively developed as substitutes for traditional enzymes.

METHODS

Carbide-derived carbons (CDCs) were directly synthesized a one-step electrochemical method from a MAX precursor using an ammonium bifluoride electrolyte at ambient conditions. The CDCs were characterized by systematic techniques.

RESULTS

CDCs showed bienzyme-like activities similar to that of peroxidase and superoxide dismutase. We systematically studied the dependence of CDC enzyme-like activity on different electrolytes and electrolysis times to confirm activity dependence on CDC content. Additionally, the synthesis mechanism and CDC applicability were elaborated and demonstrated, respectively.

CONCLUSION

The demonstrated synthesis strategy eliminates tedious intercalation and delamination centrifugation steps and avoids using high concentrations of HF, high temperatures, and halogen gases. This study paves the way for designing two-dimensional material-based nanocatalysts for nanoenzyme and other applications.

摘要