Total number
Full text
Total number
Full text
Number of local repositories
Full text
0219U000512,
0116U002558
,
Novel functional nanomaterials and nanocomposites on the basis of heterometallic systems
Fritsky Igor Olegovich, Доктор хімічних наук
04-02-2019
Taras Shevchenko Kiev University
A series of nanoobjects of complexes with spin transition on the basis of 1,2,4-triazole and 4-amino-1,2,4-triazole in reverse emulsions was synthesized. A number of fluorescent hybrid nanocomposites was obtained by modifying the resulted nanoobjects with gold nanoparticles, pyrene-containing luminophore, quantum dots, and pyrene-containing branched polyethyleneimine. New methods were developed and N-, S- and P-containing carbon materials with acidic groups up to 2-3 mmol/g were prepared; based on these materials the active and thermally stable heterogeneous acid-base catalysts which provide a complete conversion of isopropanol to propylene at T below 200°С were obtained. Massive and supported bimetallic Ni-Co, Co-Fe and Ni-Fe catalysts of CO2 methanation were obtained. Conversion of CO2 over obtained catalysts reaches high values at 250-350°C at atmospheric pressure. The synthesized Co-Ce-Mn-oxide nanomaterials were found to be catalytically active in the CO oxidation and selective CO oxidation in the presence of H2. The conditions for obtaining platinum-containing molybdenum- and tungsten-oxide nanocomposites that are catalytically active in the CH4 oxidation have been optimized. The sensors that are highly sensitive to hydrogen at low (0.1 W) heater capacities, capable of detecting microconcentration of H2 in a wide range (from 2 to 1089 ppm), stable and fast-acting (t0.9 - 3 sec, trel - 7 sec) were synthesized on the basis of Pd / SnO2 nanomaterials. The structure of Al-Fe (Ni) -Ge, Al-PM-Si and Ca0-SiO2-Al2O3 triple systems was investigated for the first time; the determining factors in the formation of their structure were established. For the first time, the partial and integral enthalpies of mixing of melts of ternary systems Cu-Sb-Ce at 1200-1300 K and In-Mn-Gd at 1600-1650 K and the double system In-Mn in the entire concentration range at 1500-1600 K were determined.
Іщенко О.В.
Бєда О.А.
Безугла Т.Н.
Головата Н.В.
Гріщенко Л.М.
Гуральський І.О.
Діюк В.Е.
Дяченко А.Г.
Задерко О.М.
Казіміров В.П.
Котова Н.В.
Луценко Л.В.
Максимович Н.П.
Матушко І.П.
Олексенко Л.П.
Павліщук А.В.
Середюк М.Л.
Сокольський В.Е.
Фрицький І.О.
Цапюк Г.Г.
2020-04-02
Updated: 2025-12-18
Saving a scientific data set occurs in two stages:
1.) Creating a data set
Enter the name of the set, a brief description of the set (annotation), and click the “Create set” button. After that, a draft data set will be automatically created, which you can save for further work with the set. The system will redirect you to the “Data set information” page.
2.) Filling in the data
On the “Data set information” page, you need to fill in all the fields related to the data set and upload the files.
Please note! Each file is uploaded separately. This is done to ensure the stable operation of the system.
Once you have filled in the information about the scientific data set and added the necessary files, you can save the draft or send the data to the system.
Please note! Once the data has been sent, you cannot change it.
Drafts are necessary for storing the data set and editing it before sending.
All accounts on the NRA website go through a standard registration procedure and are verified. However, in order to obtain additional features, such as publishing open reviews of academic texts, verification by affiliation is required.
To obtain the status “verified”, you must change your primary email address to a corporate one, which is tied to a scientific or educational institution.
For example: user@ukrintei.ua, user@nas.gov.ua
After confirming your corporate email address, your account will be automatically verified by affiliation.
If your email address is corporate, but your account does not have a verification mark, you need to write to us at the email address NRAT@ukrintei.ua. After verification, we will add your address to the database, and your account will be verified.
After completing the verification procedure for affiliation, you can change the primary email address to a convenient one for you, without losing your status during the current verification.
You only need to verify for affiliation once.
* We use corporate addresses from the Unified State Database on Education and the State Register of Scientific Institutions Supported by the State
To search for news published on the official website of NRАT in the “News” section, you need to enter one word, several words, or an exact phrase in the search field. Different terms are separated by spaces.
The search is performed everywhere – in the title and the news text.
For a more comprehensive result, it is recommended to use word stems (parts of words without endings).
When using multiple words for the search, they are combined using one of the logical methods described below.
By default, the logical connector “and” is used. In this case, search results will include all news releases that contain the specified words, even if they are located separately from each other and are in different parts of the text.
Example: Search phrase: OECD report. Search result: all news containing the words “report” and “OECD” in the text and in the title, both together and separately.
If a phrase or phrase is enclosed in quotation marks (“), the results will include all publications where this exact phrase or phrase is found.
Example: Search phrase: “OECD report.” Search result: all news containing the exact phrase “OECD report.”
If you know the publication date of the news or are interested in a specific time frame in which they were published on the website, you can select such a date or date range in the additional field that looks like a calendar. The date is entered in the format year-month-day and confirmed by clicking on the corresponding date in the calendar dropdown. You can enter a date or choose one by browsing through the calendar by months and years. By default, the interval starts from the oldest date (2018-01-23) and ends with the current date.
You can also use one or more hashtags, which are located under the search field on the right side of the “News” page.
Please note: The search for academic texts is carried out in a separate search window at the following link https://nrat.ukrintei.ua/searchdb.
