Preparation of Ag@zeolitic imidazolate framework-67 at room temperature for electrochemical sensing of hydrogen peroxide

Abstract

In this work, a novel non-enzymatic hydrogen peroxide sensor, Ag@zeolitic imidazolate framework-67 (Ag@ZIF-67)/glassy carbon electrode (GCE), was fabricated by a simple method at room temperature.

Chemoresistive Room-Temperature Sensing of Ammonia Using Zeolite Imidazole Framework and Reduced Graphene Oxide (ZIF-67/rGO) Composite

“…The polyhedral structure of ZIF-67 ( Figure 4 a) is in good agreement with earlier reports. 57 , 58 The average size of a ZIF-67 crystal is 530 ± 50 nm (based on estimation with 23 number of particles), which is close to the XRD-based approximation. SEM images of the ZIF-67/rGO composite sample ( Figure 4 b) indicate the presence of ZIF-67 crystals over the rGO sheet.…”

“…The obtained peaks and their indexing are in good agreement with the earlier reports. 57 , 58 A crystalline nature of ZIF-67 is also evident, and its crystallize size (as estimated from the Scherrer formula) is estimated to be around 550 nm. In the case of the rGO sample, two main peaks at 24.7 (002) and 43° (101) are observed.…”

A facile, cost-effective, rapid, single-step synthesis of Ag–Cu decorated ZnO nanoflower-like composites (NFLCs) for electrochemical sensing of dopamine

“…As a result, ZnO-based nanomaterials are being used extensively in recent developments to fabricate electrochemical sensors. Cu doped single phase ZnO plates synthesized via hydrothermal method and have been employed for electrochemical detection of dopamine showed promising performance [12] The ionic medium 4 supported reduced graphene oxide (im-rGO) has been reported for electrochemical sensing of dopamine [13], DNA electrochemical sensing via Ag nanoparticles decorated on carbon nanocubes has been reported for electrochemical sensing of H 2 O 2 [14], Ag@ZIF-67/GCE has been reported for electrochemical sensing of H 2 O 2 [15], Nanoparticles (NP 'S) of metals have been identified as potential candidates in bio sensing. Ag nanoparticles are employed in electrochemical detection because of their low oxidation potential [16].…”

Electrochemical determination of tetrabromobisphenol A in water samples based on a carbon nanotubes@zeolitic imidazole framework-67 modified electrode

“…What is more, the prepared composite was used in the determination of phenol like analytes. [27][28][29][30][31][32] In the eld of electrochemical, MOF-based electrodes were usually modied with conductive materials, such as Au nanoparticles 33 and Naon® ion exchangers. 34 Though the performance of carbon materials in improving the electrode conductivity is preferable, the application of carbon materials to the preparation of MOF-based sensors is still limited.…”