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Surfaces, Volume 6, Issue 3

September 2023 - 9 articles

Cover Story: The development of metal-free oxygen reduction reaction (ORR) catalysts is pivotal to reducing the cost and increasing the efficiency of fuel cells and metal–air batteries. In this work, carbon nanohorns (CNHs) have been covalently functionalized with pyridine derivatives and then tested as ORR catalysts. The resulting N-doped CNHs were found to promote the complete reduction of oxygen to hydroxyl ions, while pristine CNH led to the production of hydrogen peroxide. A combined XPS–electrochemistry study revealed that protonated pyridinic N is the main N species involved in the ORR mechanism. View this paper
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Articles (9)

  • Review
  • Open Access
19 Citations
7,344 Views
25 Pages

18 September 2023

Porous carbon is an emerging material for the capture of CO2 from point sources of emissions due to its high structural, mechanical, and chemical stability, along with reusability advantages. Currently, research efforts are mainly focused on high- or...

  • Article
  • Open Access
5 Citations
2,786 Views
12 Pages

13 September 2023

Bacterial adhesion and biofilm formation on the surface of titanium implants are the main causes of implant-associated infection. An antibacterial coating on the implant surface can reduce the risk of biofilm formation. The aim of this study was to i...

  • Article
  • Open Access
1 Citations
2,234 Views
13 Pages

1 September 2023

The mechanism of the vapor–gas deposition of vinyltrimethoxysilane (VS) and ethylene glycol (EG) from azeotropic solutions is investigated, which allows a reduction of the evaporation temperature of the components of working mixtures. The need...

  • Article
  • Open Access
4 Citations
2,602 Views
10 Pages

21 August 2023

Triboelectric nanogenerators (TENGs) based on sliding metal–semiconductor junctions are an emerging technology that can efficiently convert mechanical into electrical energy. These miniature autonomous power sources can output large direct curr...

  • Article
  • Open Access
3 Citations
2,293 Views
13 Pages

Biodegradable Zn−1wt.%Mg(−0.5wt.%Mn) Alloys: Influence of Solidification Microstructure on Their Corrosion Behavior

  • Talita Vida,
  • Clarissa Cruz,
  • André Barros,
  • Noé Cheung,
  • Crystopher Brito and
  • Amauri Garcia

11 August 2023

The development of biodegradable Zn-based alloys for implants that effectively mimic the functionality of native bone throughout the healing process is a multifaceted challenge; this is particularly evident in the task of achieving appropriate corros...

  • Article
  • Open Access
2 Citations
2,045 Views
11 Pages

3 August 2023

We measured spectra of low energy electrons emitted in the interaction of singly charged Ne+ ions with the Mg surface at incident ion energies ranging from 50 eV to 4 keV. The study examines issues related to the excitation of both the surface and th...

  • Article
  • Open Access
1 Citations
2,299 Views
8 Pages

27 July 2023

A flexible chitin nanofiber (ChNF) film with a thin fiber morphology, named, scaled-down (SD)-ChNF film, was previously found to be formed via successive partial deacetylation of the parent self-assembled ChNFs, cationization/dispersion via electrost...

  • Article
  • Open Access
4 Citations
2,374 Views
10 Pages

Using Highly Flexible SbSn@NC Nanofibers as Binderless Anodes for Sodium-Ion Batteries

  • Jiaojiao Liang,
  • Gengkun Fang,
  • Xinmiao Niu,
  • Zhihao Zhang,
  • Yufei Wang,
  • Lingyuan Liao,
  • Xiaoming Zheng,
  • Di Huang and
  • Yuehua Wei

16 July 2023

Flexible and binderless electrodes have become a promising candidate for the next generation of flexible power storage devices. However, developing high-performance electrode materials with high energy density and a long cycle life remains a serious...

  • Article
  • Open Access
2,416 Views
12 Pages

8 July 2023

The search of active, stable and low costs catalysts for the oxygen reduction reaction (ORR) is crucial for the extensive use of fuel cells and metal–air batteries. The development of metal-free catalysts, instead of platinum-based materials, c...

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Surfaces - ISSN 2571-9637