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Selected Papers from 2021—the 3rd China International Creation and Development...
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Selected Papers from 2021—the 3rd China International Creation and Development Forum of Micro-Nano Technology and Composite Materials (Zhengzhou, China)

A special issue of Crystals (ISSN 2073-4352).

Deadline for manuscript submissions: closed (31 January 2022) | Viewed by 4809

Special Issue Editors

Prof. Dr. Haichang Zhang

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Guest Editor
Department of polymer of science, Qingdao University of Science and Technology, Qingdao, China
Interests: polymer synthesis; dyes and pigments; organic field-effect transistors; hole transfer materials in perovskite solar cells; coating
Special Issues, Collections and Topics in MDPI journals
Dr. Maning Liu

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Guest Editor
Chemistry and Advanced Materials Group, Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 692, FI-33014 Tampere, Finland
Interests: nanoenergy; perovskite solar cells; conjugated materials; organic solar cells; organic synthesis
Special Issues, Collections and Topics in MDPI journals
Dr. Jing Hua

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Guest Editor
School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
Interests: rubber; organic synthesis; polymer chemistry
Dr. Meng Zheng

E-Mail Website
Guest Editor
Department of Chemical Science, University of Padova, Padova, Italy
Interests: material characterization; organic synthesis; graphene-based materials; polyvinyl chloride; graphene functionalization; material modification; ogranic chromophores; diketopyrrolopyrrole dyes
Prof. Dr. Daohai Zhang

E-Mail Website
Guest Editor
School of Chemical Engineering, Guizhou Minzhu University, Guiyang 550025, China
Interests: the design and development of high performance composites; plastics; polymer chemistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

To display and exchange the latest academic progress and innovative achievements in the field of micro-nano and composite materials, promote multidisciplinary integration, build an international communication platform, and focus on facilitating industry–university–research institute alliances, the third “China International Creation and Development Forum of Micro-Nano Technology and Composite Materials”, sponsored by the Chinese Society for Composite Materials and People’s Government of Zhengzhou Municipality, will be held in Zhengzhou, China, on 29–31 October 2021, and it will include 6–8 branch venues. At the same time, the “Micro-Nano Technology and Composite Material Products and Equipment Exhibition” will be held.

We cordially invite researchers working in the field of the following topics and related fields to submit your original research articles, perspectives, and reviews to this Special Issue.

  1. Nanometer structures and their mechanical and electrical properties;
  2. Nanomaterial preparation technology and properties;
  3. Nanomaterial self-assembly technology;
  4. MEMS devices and systems;
  5. Optical, electrical, and magnetic materials, components and systems in the nanoscale;
  6. Micro/nanomanufacturing technology;
  7. New principle of nanofabrication equipment and nanofabrication accuracy and measurement;
  8. Characterization of nanomaterials and detection of nanodevices;
  9. Application of micro/nano devices and systems;
  10. Nano-energetic material technology;
  11. Ceramic matrix composite materials;
  12. Metal matrix composite materials;
  13. Resin matrix composite materials;
  14. Micro & nano theranostic systems for preclinical studies;
  15. Others.

Prof. Dr. Haichang Zhang
Dr. Maning Liu
Prof. Dr. Jing Hua
Dr. Meng Zheng
Dr. Daohai Zhang
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. Crystals 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 2600 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.

Published Papers (2 papers)

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Research

10 pages, 3343 KiB  
Article
Effect of Thiourea Containing Composite Additives on Nickel Electrodeposition in Ammoniacal Solution
by Liang Yuan, Jinhong Chen, Jingxiang Zhang and Lingna Sun
Crystals 2022, 12(1), 43; https://doi.org/10.3390/cryst12010043 - 29 Dec 2021
Cited by 1 | Viewed by 1736
Abstract
Composite additives have an important influence on the process of metal electrodeposition and the quality of a metal deposited layer. In this work, the additive thiourea (TU) was compounded with cetyltrimethyl ammonium chloride (CTAC), sodium dodecyl sulfate (SDS) and polyethylene glycol 20,000 (PEG20000), [...] Read more.
Composite additives have an important influence on the process of metal electrodeposition and the quality of a metal deposited layer. In this work, the additive thiourea (TU) was compounded with cetyltrimethyl ammonium chloride (CTAC), sodium dodecyl sulfate (SDS) and polyethylene glycol 20,000 (PEG20000), and their effect on the cyclic voltammetric behavior, electrochemical nucleation mechanism, crystallographic orientations and surface morphology of the nickel electrodeposition in ammoniacal solution were experimentally investigated. The results show that the introduction of composite additives resulted in a stronger cathodic polarization and increased the nucleation overpotential (NOP) values significantly, which had an important impact on forming compact and smooth nickel deposits. The chronoamperometry analysis indicated that the reduction in nickel followed the 3D progressive nucleation mechanism in the presence of composite additives at the step potential of −1.16 V and −1.18 V. Smoother and finer nickel films were found using scanning electron microscopy (SEM) images as the composite additives were used. X-ray diffraction revealed that all nickel deposit samples had the face-centered cubic structure, and five main crystal planes were displayed by the presence of composite additives in the electrolyte. Furthermore, the diffraction peaks of (111) and (200) crystal planes were slightly shifted toward lower 2θ values when thiourea was used in combination with additive CTAC or PEG20000. These results were beneficial for understanding the mechanisms and facilitating the rational design of additives for metal nickel electrodeposition. Full article
(This article belongs to the Special Issue Selected Papers from 2021—the 3rd China International Creation and Development Forum of Micro-Nano Technology and Composite Materials (Zhengzhou, China))
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12 pages, 4548 KiB  
Article
The Application of Organic Phosphate Nucleating Agents in Polypropylene with Different Molecular Weights
by Juan Li, Zhaohua Liang, Chengtao Gao, Shanshan Luo, Shaowen Huang, Daohai Zhang and Shuhao Qin
Crystals 2021, 11(12), 1543; https://doi.org/10.3390/cryst11121543 - 10 Dec 2021
Cited by 5 | Viewed by 2390
Abstract
Two kinds of organic phosphate nucleating agent (NA-11 and NA-21) were used in PP with different molecular weights through the melt extrusion method. The dispersibility of the nucleating agents in PP, and the effect of the nucleating agents on the molecular weight, rheological [...] Read more.
Two kinds of organic phosphate nucleating agent (NA-11 and NA-21) were used in PP with different molecular weights through the melt extrusion method. The dispersibility of the nucleating agents in PP, and the effect of the nucleating agents on the molecular weight, rheological behavior and crystallization behavior of PP were investigated. SEM and TEM analysis showed that the average radius of the dispersed particles (nucleating agents) was larger in LPP than that in HPP. The good dispersion of NA-21 also created more nucleation embryos for the adsorption of polypropylene molecules than the agglomerated NA-11. The gel permeation chromatography (GPC) analysis showed that the average molecular weight of HPP and LPP both decreased with the addition of a nucleating agent. The rotational rheometer and capillary rheometer analysis showed that the effect of NA-21 on reducing intermolecular entanglement was more significant, whether in HPP or LPP. The addition of NA-21 had less elastic energy storage and better flow stability, and could be processed at a higher speed. Simultaneously, the relaxation time in the blends with LPP was shorter than that with HPP. It was found that the crystallinity and nucleation efficiency of HPP/nucleating agent blends increased remarkably, while there was a barely perceptible increase in LPP/nucleating agent blends. Full article
(This article belongs to the Special Issue Selected Papers from 2021—the 3rd China International Creation and Development Forum of Micro-Nano Technology and Composite Materials (Zhengzhou, China))
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