Journal
ANALYTICAL CHEMISTRY
Volume 93, Issue 32, Pages 11066-11071Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.1c02183
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Funding
- National Natural Science Foundation of China [62001224]
- Natural Science Foundation of Jiangsu Province [BK20190457]
- 69th batch of China Postdoctoral Science Foundation [2021M691600]
- Overseas Academic Partnership Program of Nanjing University of Technology (2019)
- Sino-French International Research Network New Nanostructured Materials and Biomaterials for Renewable Electrical Energy Sources
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Metal-organic frameworks (MOFs) are versatile coordinators for synthesizing high-performance catalysts, such as the redox-alternating CuxO electrochemical catalyst. The study synthesized a novel precursor MOF and characterized the transformation towards a highly active nanocomposite through temperature modulation to enhance sensitivity in H2O2 reduction. The resulting sensor material exhibited amplified sensitivity and ease of preparation, suggesting wide applications in medical settings.
Metal-organic frameworks (MOFs) act as versatile coordinators for the subsequent synthesis of high-performance catalysts by providing dispersed metal-ion distribution, initial coordination condition, dopant atom ratios, and so on. In this work, a crystalline MOF trans-[Cu(NO3)(2)(Him)(4)] was synthesized as the novel precursor of a redox-alternating CuxO electrochemical catalyst. Through simple temperature modulation, the gradual transformation toward a highly active nanocomposite was characterized to ascertain the signal enhancing mechanism in H2O2 reduction. Owing to the proprietary structure of the transducer material and its ensuing high activity, a proof-of-principle sensor was able to provide an amplified sensitivity of 2330 mu A mM(-1) cm(-2). The facile one-pot preparation and intrinsic nonenzymatic nature also suggests its wide potentials in medical settings.
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