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Nanomaterials
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Advancing the Role of Nanomaterials Innovation and Technology to Reach...
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Advancing the Role of Nanomaterials Innovation and Technology to Reach a Sustainable World

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

Deadline for manuscript submissions: closed (30 November 2022) | Viewed by 2748

Special Issue Editors

Dr. Mohammad Ismail

E-Mail Website
Guest Editor
Faculty of Ocean Engineering Technology and Informatics, University Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia
Interests: nanostructured materials; nanomaterials; advanced materials
Special Issues, Collections and Topics in MDPI journals
Dr. Lukman Noerochim

E-Mail Website
Guest Editor
Department of Materials and Metallurgical Engineering, Sepuluh Nopember Institute of Technology, Surabaya 60111, Indonesia
Interests: advanced materials for energy storage

Special Issue Information

Dear Colleagues,

This Special Issue will feature selected papers from the 5th International Conference on Materials and Metallurgical Engineering and Technology (ICOMMET) 2022, to be held on the 29th and 30th of October 2022 (https://www.its.ac.id/tmaterial/icommet/). It will cover all facets of nanomaterials research and serve as a forum for the presentation and discussion of new findings. We welcome the submission of papers and presentations covering any field of nanomaterials, such as nanomaterials and nanostructures, 2D materials and graphene, nanoparticles and quantum dots, nanowires and nanotubes, nanobiology and nanomedicine, nanophotonics and plasmonics, nanoelectronics and nanodevices, nanoenergy and nanocatalysis, and nanofabrication and nanomanipulation.

Papers will undergo peer review and be published with the aim of ensuring rapid and widespread dissemination of research findings, advances, and applications. This conference series will provide an overview of the most recent developments in the field of nanomaterials. However, anyone can contribute to this Special Issue (not only participants of the conference).

Dr. Mohammad Ismail
Dr. Lukman Noerochim
Guest Editors

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 submissions that pass pre-check are 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 semimonthly 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 2900 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

  • nanomaterials and nanostructures
  • 2D materials and graphene
  • nanoparticles and quantum dots
  • nanowires and nanotubes
  • nanobiology and nanomedicine
  • nanophotonics and plasmonics
  • nanoelectronics and nanodevices
  • nanoenergy and nanocatalysis
  • nanofabrication and nanomanipulation
  • nanofluidics

Published Papers (2 papers)

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Research

12 pages, 3259 KiB  
Article
Improved Dehydrogenation Properties of LiAlH4 by Addition of Nanosized CoTiO3
by Nurul Amirah Ali, Muhammad Amirul Nawi Ahmad, Muhammad Syarifuddin Yahya, Noratiqah Sazelee and Mohammad Ismail
Nanomaterials 2022, 12(21), 3921; https://doi.org/10.3390/nano12213921 - 07 Nov 2022
Cited by 9 | Viewed by 1351
Abstract
Despite the application of lithium aluminium hydride (LiAlH4) being hindered by its sluggish desorption kinetics and unfavourable reversibility, LiAlH4 has received special attention as a promising solid-state hydrogen storage material due to its hydrogen storage capacity (10.5 wt.%). In this [...] Read more.
Despite the application of lithium aluminium hydride (LiAlH4) being hindered by its sluggish desorption kinetics and unfavourable reversibility, LiAlH4 has received special attention as a promising solid-state hydrogen storage material due to its hydrogen storage capacity (10.5 wt.%). In this work, investigated for the first time was the effect of the nanosized cobalt titanate (CoTiO3) which was synthesised via a solid-state method on the desorption behaviour of LiAlH4. Superior desorption behaviour of LiAlH4 was attained with the presence of a CoTiO3 additive. By means of the addition of 5, 10, 15 and 20 wt.% of CoTiO3, the initial desorption temperature of LiAlH4 for the first stage was reduced to around 115–120 °C and the second desorption stage was reduced to around 144–150 °C, much lower than for undoped LiAlH4. The LiAlH4-CoTiO3 sample also presents outstanding desorption kinetics behaviour, desorbing hydrogen 30–35 times faster than undoped LiAlH4. The LiAlH4-CoTiO3 sample could desorb 3.0–3.5 wt.% H2 in 30 min, while the commercial and milled LiAlH4 desorbs <0.1 wt.% H2. The apparent activation energy of the LiAlH4-CoTiO3 sample based on the Kissinger analysis was decreased to 75.2 and 91.8 kJ/mol for the first and second desorption stage, respectively, lower by 28.0 and 24.9 kJ/mol than undoped LiAlH4. The LiAlH4-CoTiO3 sample presents uniform and smaller particle size distribution compared to undoped LiAlH4, which is irregular in shape with some agglomerations. The experimental results suggest that the CoTiO3 additive promoted notable advancements in the desorption performance of LiAlH4 through the in situ-formed AlTi and amorphous Co or Co-containing active species that were generated during the desorption process. Full article
(This article belongs to the Special Issue Advancing the Role of Nanomaterials Innovation and Technology to Reach a Sustainable World)
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18 pages, 4305 KiB  
Article
Influence of Nanosized CoTiO3 Synthesized via a Solid-State Method on the Hydrogen Storage Behavior of MgH2
by Nurul Amirah Ali, Muhammad Syarifuddin Yahya, Noratiqah Sazelee, Muhamad Faiz Md Din and Mohammad Ismail
Nanomaterials 2022, 12(17), 3043; https://doi.org/10.3390/nano12173043 - 01 Sep 2022
Cited by 24 | Viewed by 1948
Abstract
Magnesium hydride (MgH2) has received outstanding attention as a safe and efficient material to store hydrogen because of its 7.6 wt.% hydrogen content and excellent reversibility. Nevertheless, the application of MgH2 is obstructed by its unfavorable thermodynamic stability and sluggish [...] Read more.
Magnesium hydride (MgH2) has received outstanding attention as a safe and efficient material to store hydrogen because of its 7.6 wt.% hydrogen content and excellent reversibility. Nevertheless, the application of MgH2 is obstructed by its unfavorable thermodynamic stability and sluggish sorption kinetic. To overcome these drawbacks, ball milling MgH2 is vital in reducing the particle size that contribute to the reduction of the decomposition temperature. However, the milling process would become inefficient in reducing particle sizes when equilibrium between cold-welding and fracturing is achieved. Therefore, to further ameliorate the performance of MgH2, nanosized cobalt titanate (CoTiO3) has been synthesized using a solid-state method and was introduced to the MgH2 system. The different weight percentages of CoTiO3 were doped to the MgH2 system, and their catalytic function on the performance of MgH2 was scrutinized in this study. The MgH2 + 10 wt.% CoTiO3 composite presents the most outstanding performance, where the initial decomposition temperature of MgH2 can be downshifted to 275 °C. Moreover, the MgH2 + 10 wt.% CoTiO3 absorbed 6.4 wt.% H2 at low temperature (200 °C) in only 10 min and rapidly releases 2.3 wt.% H2 in the first 10 min, demonstrating a 23-times-faster desorption rate than as-milled MgH2 at 300 °C. The desorption activation energy of the 10 wt.% CoTiO3-doped MgH2 sample was dramatically lowered by 30.4 kJ/mol compared to undoped MgH2. The enhanced performance of the MgH2–CoTiO3 system is believed to be due to the in situ formation of MgTiO3, CoMg2, CoTi2, and MgO during the heating process, which offer a notable impact on the behavior of MgH2. Full article
(This article belongs to the Special Issue Advancing the Role of Nanomaterials Innovation and Technology to Reach a Sustainable World)
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