nucВестник НЯЦ РКNNC RK Bulletin1729-75161729-7885Национальный ядерный центр Республики Казахстан10.52676/1729-7885-2025-3-219-227nuc-931Research ArticleСтатьиВЛИЯНИЕ ТИТАНА НА ФАЗОВОЕ СОСТОЯНИЕ МАТЕРИАЛОВ ДЛЯ ХРАНЕНИЯ ВОДОРОДА НА ОСНОВЕ LaNi5EFFECT OF TITANIUM ON THE PHASE STATE OF LaNi5-BASED HYDROGEN STORAGE MATERIALShttps://orcid.org/0000-0002-2188-8075МиниязовА. Ж.MiniyazovA. Zh.

Миниязов Арман Жанарбекович - PhD, заместитель директора филиала ИАЭ РГП НЯЦ РК.

Курчатов

Kurchatov

Miniyazov@nnc.kzhttps://orcid.org/0000-0003-3716-8846СкаковМ. К.SkakovM. K.

Скаков Мажын Канапинович - д.ф.-м.н. главный научный сотрудник РГП НЯЦ РК.

Курчатов

Kurchatov

skakov@nnc.kzhttps://orcid.org/0000-0003-4189-6539МухамедоваН. М.MukhamedovaN. M.

Мухамедова Нурия Мейрамкановна - PhD, начальник лаборатории перспективных материалов.

Курчатов

Kurchatov

bakayeva@nnc.kzhttps://orcid.org/0000-0002-4423-4349ЖанболатоваҒ. Қ.ZhanbolatovaG. K.

Жанболатова Ғайния Қайырдықызы - PhD, старший научный сотрудник Центра технологических компетенций в сфере водородной энергетики.

Курчатов

Kurchatov

kaiyrdy@nnc.kzhttps://orcid.org/0009-0006-8141-8557ЖақияР. Е.ZhakiyaR. E.

Жақия Риза Есрафилқызы - специалист Центра технологических компетенций в сфере водородной энергетики.

Курчатов

Kurchatov

zhakiya@nnc.kzСабыртаеваА. А.SabyrtaevaA. A.

Сабыртаева Айсара Асхатқызы - инженер лаборатории перспективных материалов.

Курчатов

Kurchatov

sabyrtayeva@nnc.kzӨкенО.OkenO.

Өкен Оспан - техник-лаборант 2 категории лаборатории перспективных материалов.

Курчатов

Kurchatov

Oken@nnc.kzФилиал «Институт атомной энергии» РГП НЯЦ РККазахстанBranch “Institute of Atomic Energy” RSE NNC RKKazakhstanРГП «Национальный ядерный центр Республики Казахстан»КазахстанRSE “National Nuclear Center of the Republic of Kazakhstan”Kazakhstan20252210202503219227Copyright © Миниязов А.Ж., Скаков М.К., Мухамедова Н.М., Жанболатова Ғ.Қ., Жақия Р.Е., Сабыртаева А.А., Өкен О., 20252025Миниязов А.Ж., Скаков М.К., Мухамедова Н.М., Жанболатова Ғ.Қ., Жақия Р.Е., Сабыртаева А.А., Өкен О.Miniyazov A.Z., Skakov M.K., Mukhamedova N.M., Zhanbolatova G.K., Zhakiya R.E., Sabyrtaeva A.A., Oken O.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://journals.nnc.kz/jour/article/view/931

Водород является перспективным источником энергии, в связи с чем требуется разработка надежных и эффективных методов его хранения. Наиболее перспективным является технология хранения водорода в интерметаллидных соединениях. Этот метод является одним из самых безопасных и позволяет хранить водород с большей объемной плотностью. В настоящей работе изучено влияние легирования титаном на фазовый и структурный состав сплавов на основе LaNi5, синтезированных методами механосинтеза и искроплазменного спекания. С помощью рентгенофазового анализа установлено, что основной матричной фазой является LaNi5, а также формируется интерметаллид TiNi. В ряде образцов обнаружены оксидные фазы La2O3 и TiO2, возникшие вследствие локального окисления. Оптимальные характеристики по кристалличности и фазовой однородности выявлены у образца LNT-1, что подтверждает высокую эффективность выбранных условий обработки. Оптимальными условиями получения интерметаллидного соединения на основе LaNi5, легированного титаном, являются: соотношение масса шаров к массе порошка (BPR) 20:1 при длительности 8 часов со скоростью вращения 350 об/мин и ИПС при давлении 2 МПа, температуре 1300 ℃ и времени выдержки 5 минут. Полученные результаты позволяют рекомендовать этот подход для создания материалов с улучшенными характеристиками для твердотельного хранения водорода.

Hydrogen is a promising source of energy, which requires the development of reliable and efficient methods of its storage. The most promising technology is the storage of hydrogen in intermetallic compounds. This method is one of the safest and allows you to store hydrogen with a higher volume density. In this work, the effect of titanium alloying on the phase and structural composition of LaNi5-based alloys synthesized by mechanosynthesis and spark plasma sintering is studied. X-ray phase analysis revealed that LaNi5 is the main matrix phase, and TiNi intermetallic compound is also formed. The oxide phases La2O3 and TiO2, which arose as a result of local oxidation, were found in a number of samples. Optimal crystallinity and phase uniformity characteristics were found in the LNT-1 sample, which confirms the high efficiency of the selected processing conditions. The optimal conditions for obtaining an intermetallic compound based on LaNi5 doped with titanium are: The ratio of the mass of the balls to the mass of the powder (BPR) is 20:1 for a duration of 8 hours with a rotation speed of 350 rpm and IPS at a pressure of 2 MPa, a temperature of 1300 ℃ and a holding time of 5 minutes. The results obtained allow us to recommend this approach for creating materials with improved characteristics for solid-state hydrogen storage.

хранение водородаинтерметаллидные соединениямеханосинтезиспкроплазменное спеканиерентгенофазовый анализhydrogen storageintermetallic compoundsmechanosynthesisspark plasma sintering (SPS)X-ray phase analysisРабота выполнена при финансовой поддержке Комитета науки Министерства науки и высшего образования Республики Казахстан в рамках проекта программно-целевого финансирования по теме BR21882200 «Разработка и исследование инновационных технологий, материалов и устройств для получения, хранения водорода и генерации электроэнергии». Авторы выражают благодарность коллективу Центра технологических компетенций в сфере водородной энергетики филиала ИАЭ РГП НЯЦ РК за ценные советы и методическую помощь при выполнении работы.ReferencesHu T. et al. A mini review for hydrogen production routes toward carbon neutrality // Propulsion and Energy. – 2025. – Vol. 1. – No. 1. – P. 1–20. https://doi.org/10.1007/s44270-024-00004-4Hu T. et al. 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The authors declare that there are no conflicts of interest present.