Novel Study on Photochemistry and Electrochemistry of Composite Nanomaterials

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Nanotechnology and Applied Nanosciences".

Deadline for manuscript submissions: 30 April 2024 | Viewed by 817

Special Issue Editor


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Guest Editor
School of Science, Beijing University of Post and Telecommunications, Beijing 100687, China
Interests: photocatalysis; nanomaterials; plasmonic catalysis; 2D materials

Special Issue Information

Dear Colleagues,

We are inviting submissions on the photochemistry and electrochemistry of composite nanomaterials. Composite nanomaterials have long been a hot issue in materials science, while their application in photochemistry and electrochemistry also shows prominent prospects. The nanoscale dimension brings fascinating physical (chemical) properties, numerous morphologiy controls, and various combination possibilities, and composite nanomaterials have been widely applied in photochemistry, electrochemistry, PEC catalysis, and so on.

With the urgent demand of sustainable and clean energy, photochemistry and electrochemistry show great practicle potential to aid in solving the enery and environment issue. Photochemitry, the study of chemical reactions that occur because of the absorption of light, is an efficient way to harvest clean energy and promote the occurrence of some important chemical reactions. Electrochemistry, a discipline that focuses on chemical reactions that involve charge exchange, plays an important role in generating clean energy and energy transduction. With the participation and motivation of composite nanomaterials, photochemistry and electrochemistry present a thriving trend, endowing more possibilities to the real application of energy harvesting and clean usage.

Kind Regards,

Dr. Limin Guo
Guest Editor

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Keywords

  • nanomaterials
  • composites
  • catalysis
  • photochemistry
  • electrochemistry
  • plasmonic materials

Published Papers (1 paper)

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Research

10 pages, 2908 KiB  
Communication
Manganese-Cobalt Spinel Nanoparticles Anchored on Carbon Nanotubes as Bi-Functional Catalysts for Oxygen Reduction and Oxygen Evolution Reactions
by Yixiao Zhang, Xinyu Xie, Zhichuang Zheng, Xian He, Peng Du, Ru Zhang, Limin Guo and Kai Huang
Appl. Sci. 2023, 13(23), 12702; https://doi.org/10.3390/app132312702 - 27 Nov 2023
Viewed by 623
Abstract
The pivotal role of oxygen electrocatalysis in the realm of energy conversion and storage is unmistakably significant. In an endeavor to diminish the reliance on precious metals, the development of innovative catalysts exhibiting exceptional bifunctional durability and heightened activity for both the oxygen [...] Read more.
The pivotal role of oxygen electrocatalysis in the realm of energy conversion and storage is unmistakably significant. In an endeavor to diminish the reliance on precious metals, the development of innovative catalysts exhibiting exceptional bifunctional durability and heightened activity for both the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) has garnered considerable scholarly interest. Employing a straightforward two-step methodology, we have successfully synthesized uniformly distributed MnCo2O4 and CoMn2O4 nanoparticles of diminutive size, meticulously anchored onto carbon nanotubes (CNTs). Owing to the synergistic covalent interplay between the spinel oxide nanoparticles and CNTs, these nanocomposites demonstrate ORR activity on par with, and notably superior OER activity compared to, commercially available Pt/C catalysts. The onset potential of MnCo2O4-CNTs stands at 1.03 V vs. RHE, maintaining 95.76% of its initial current density following a 10,000-s chronoamperometry test. Furthermore, MnCo2O4-CNTs outperform CoMn2O4-CNTs in OER catalysis. The outstanding performance of MnCo2O4-CNTs is attributed to the higher content of Co3+ ions, which are active for the oxygen electrocatalysis. Full article
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