Probing the crystal plane effect of Co3O4 for non-enzymatic electrochemistry sensing performance toward hydrogen peroxide

Jiang, Jiaojiao; Zhang, Zhixuan; Liang, Zhiqi; Chen, Wenying; Zhong, M.; Xu, Kai; Wu, Zhouling

doi:10.1016/j.apsusc.2023.158177

Cited by 4 publications

(1 citation statement)

References 45 publications

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“…At present, diverse morphologies of Co 3 O 4 materials have been reported, encompassing nanoparticles, ower-like structures, nanowires, nanorods, and nanosheets. According to literature reports, multilevel-structured micro/nanomaterials with high speci c area could exhibit useful electrochemical properties [23][24][25][26][27]. Despite this, the exploration of other multilevel structures remains scarce.…”

Section: Introductionmentioning

confidence: 99%

Design and synthesis of multilevel structured Co3O4 double-shell dodecahedron as non-enzymatic electrochemical sensor for H2O2 detection

Zhang,

Liang,

Huang

et al. 2024

Preprint

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In this work, we used ZIF-67 as a template to prepare multilevel structured Co3O4 with a high surface area. The synthesized materials were characterized by SEM, TEM, XRD and N2 physisorption.The double-shell dodecahedron multileve structure of Co3O4 (DS Co3O4) was found to have the most favorable morphology and largest specific surface area, and was demonstrated to be an effective electrochemical non-enzymatic H2O2 sensor. The efficiency is due to the unique multilevel structure of DS Co3O4, providing abundant active sites for H2O2 oxidation. The sensor showed a fast response time of 5 s, a high sensitivity of 1168.9 µA·mM− 1cm− 2 and a detection limit of 0.048 µM (S/N = 3) in the linear range 0.0005–10 mM, significantly better than other reported high performance Co3O4-based H2O2 sensors. The as-fabricated DS Co3O4/RDE materials are promising sensors for H2O2 due to their excellent sensitivity, selectivity and long-term stability.

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Section: Introductionmentioning

confidence: 99%

Design and synthesis of multilevel structured Co3O4 double-shell dodecahedron as non-enzymatic electrochemical sensor for H2O2 detection

Zhang,

Liang,

Huang

et al. 2024

Preprint

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Propene epoxidation with molecular oxygen: Advancements from nanoparticle to single‐atom catalysts

He,

Lin,

Yin

et al. 2024

Smart Molecules

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Propylene oxide plays a pivotal role as an organic synthesis intermediate, boasting extensive downstream applications and promising market prospects. Propene epoxidation via molecular oxygen has garnered considerable attention due to its cost‐effectiveness, environmental friendliness, ease of operation, and straightforward product separation. This paper provides an in‐depth exploration of recent advancements, ranging from nanoparticle to Single‐atom catalysts (SACs), in the context of propene epoxidation using molecular oxygen. Conventional nanoparticle catalysts, including those based on Ag, Cu, and other metals, are examined with regard to their contributions to support effects, electron effects, or crystal‐plane effects within the mechanistic investigation. Furthermore, emerging SACs (specifically Mo, Cu, and Co) are discussed in terms of synthesis strategies, characterization methods, and mechanism studies. This comprehensive review sheds new light on design strategies, relevant characterizations, and thorough mechanism investigations aimed at fostering the development of efficient catalysts, thereby expediting progress in the industrial implementation of propene epoxidation.

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CuO and spinel CuCo2O4 supported on mesoporous nanocubes with dual redox-active centers for electrocatalytic H2O2 reduction and sensing

Wu,

Lin,

Kung

2024

Journal of Alloys and Compounds

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Probing the crystal plane effect of Co3O4 for non-enzymatic electrochemistry sensing performance toward hydrogen peroxide

Cited by 4 publications

References 45 publications

Design and synthesis of multilevel structured Co3O4 double-shell dodecahedron as non-enzymatic electrochemical sensor for H2O2 detection

Design and synthesis of multilevel structured Co3O4 double-shell dodecahedron as non-enzymatic electrochemical sensor for H2O2 detection

Propene epoxidation with molecular oxygen: Advancements from nanoparticle to single‐atom catalysts

CuO and spinel CuCo2O4 supported on mesoporous nanocubes with dual redox-active centers for electrocatalytic H2O2 reduction and sensing

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