Special Issue "Nanomaterials for Electrocatalytic Applications in Energy and Sensing"

A special issue of Nanomaterials (ISSN 2079-4991).

Deadline for manuscript submissions: 30 September 2018

Special Issue Editor

Guest Editor
Dr. Paolo Bertoncello

College of Engineering, Systems and Process Engineering Centre, Swansea University, Swansea, United Kingdom
Website | E-Mail
Interests: electrocatalysis; biosensors; electrochemistry; thin films

Special Issue Information

Dear Colleagues,

Currently, there is a tremendous interest in the development of materials with intriguing and peculiar properties at the nanoscale for efficient applications in energy and sensing. Electrocatalysis is a branch of science that investigate chemical reactions occurring at the surface of a variety of nanomaterials from metal nanoparticles to carbon nanomaterials to cite few, with applications spanning from reactions of interest in fuel cells (hydrogen oxidation, oxygen reduction reactions, conversion of CO2 to methanol) to sensors (detection of analytes of clinical and/or environmental interest). This Special Issue of Nanomaterials on electrocatalytic applications in energy and sensing aims at collecting reviews and recent papers on the most recent development in electrocatalysis studies for energy and sensing applications.

Dr. Paolo Bertoncello
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1500 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • hydrogen evolution reactions
  • oxygen reduction reactions
  • water splitting
  • metal nanoparticles
  • carbon nanomaterials
  • electrocatalytic reactions
  • sensors

Published Papers (2 papers)

View options order results:
result details:
Displaying articles 1-2
Export citation of selected articles as:

Research

Open AccessArticle Preparation of Cuprous Oxide Mesoporous Spheres with Different Pore Sizes for Non-Enzymatic Glucose Detection
Nanomaterials 2018, 8(2), 73; https://doi.org/10.3390/nano8020073
Received: 9 January 2018 / Revised: 26 January 2018 / Accepted: 26 January 2018 / Published: 29 January 2018
PDF Full-text (2890 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
Mass transfer plays a significant role in a sensor’s performance, because the substrate can be detected only when it contacts with the active catalytic surface. In this work, cuprous oxide mesoporous nanospheres (Cu2O MPNS) with different pore size distributions are fabricated
[...] Read more.
Mass transfer plays a significant role in a sensor’s performance, because the substrate can be detected only when it contacts with the active catalytic surface. In this work, cuprous oxide mesoporous nanospheres (Cu2O MPNS) with different pore size distributions are fabricated and applied as electrocatalysts for glucose detection. The small pore Cu2O (SP-Cu2O, mean pore size of 5.3 nm) and large pore Cu2O (LP-Cu2O, mean pore size of 16.4 nm) spheres are prepared by the template method and an etching treatment. The obtained two kinds of Cu2O MPNS exhibit high porosity with a similar specific surface area of 61.2 and 63.4 (m2·g−1), respectively. The prepared Cu2O MPNS are used to construct an electrochemical non-enzymatic glucose sensor. The results show that the LP-Cu2O exhibits better performance than SP-Cu2O, which illustrates that the internal diffusion takes a great impact on the performance of the sensor. The LP-Cu2O modified electrode possesses a high and reproducible sensitivity of 2116.9 μA mM−1·cm−2 at the applied potential of 0.6 V with a wide detection range of 0.003–7.8 mM and a low detection limit of 0.42 μM. Full article
(This article belongs to the Special Issue Nanomaterials for Electrocatalytic Applications in Energy and Sensing)
Figures

Graphical abstract

Open AccessArticle One-Step Electrochemical Fabrication of Reduced Graphene Oxide/Gold Nanoparticles Nanocomposite-Modified Electrode for Simultaneous Detection of Dopamine, Ascorbic Acid, and Uric Acid
Nanomaterials 2018, 8(1), 17; https://doi.org/10.3390/nano8010017
Received: 23 November 2017 / Revised: 14 December 2017 / Accepted: 28 December 2017 / Published: 30 December 2017
Cited by 1 | PDF Full-text (4111 KB) | HTML Full-text | XML Full-text
Abstract
Here, we introduce the preparation of the hybrid nanocomposite-modified electrode consisting of reduced graphene oxide (RGO) and gold nanoparticles (AuNPs) using the one-step electrochemical method, allowing for the simultaneous and individual detection of dopamine (DA), ascorbic acid (AA), and uric acid (UA). RGO/AuNPs
[...] Read more.
Here, we introduce the preparation of the hybrid nanocomposite-modified electrode consisting of reduced graphene oxide (RGO) and gold nanoparticles (AuNPs) using the one-step electrochemical method, allowing for the simultaneous and individual detection of dopamine (DA), ascorbic acid (AA), and uric acid (UA). RGO/AuNPs nanocomposite was formed on a glassy carbon electrode by the co-reduction of GO and Au3+ using the potentiodynamic method. The RGO/AuNPs nanocomposite-modified electrode was produced by subjecting a mixed solution of GO and Au3+ to cyclic sweeping from −1.5 V to 0.8 V (vs. Ag/AgCl) at a scan rate 10 mV/s for 3 cycles. The modified electrode was characterized by scanning electron microscopy, Raman spectroscopy, contact angle measurement, electrochemical impedance spectroscopy, and cyclic voltammetry. Voltammetry results confirm that the RGO/AuNPs nanocomposite-modified electrode has high catalytic activity and good resolution for the detection of DA, AA, and UA. The RGO/AuNPs nanocomposite-modified electrode exhibits stable amperometric responses for DA, AA, and UA, respectively, and its detection limits were estimated to be 0.14, 9.5, and 25 μM. The modified electrode shows high selectivity towards the determination of DA, AA, or UA in the presence of potentially active bioelements. In addition, the resulting sensor exhibits many advantages such as fast amperometric response, excellent operational stability, and appropriate practicality. Full article
(This article belongs to the Special Issue Nanomaterials for Electrocatalytic Applications in Energy and Sensing)
Figures

Figure 1

Back to Top