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Ярославцев Андрей Борисович

Базовая кафедра неорганической химии и материаловедения Института общей и неорганической химии им. Н.С. Курнакова РАН

Профиль на hse.ru ↗ тел.: 23530
Публикаций
90
Языков
1
Наград
8
Конференций
1
Профиль Публикации (90) Курсы (6)

Профессиональные интересы

мембраныИонная проводимость

Должности

  • Заведующий кафедрой — Базовая кафедра неорганической химии и материаловедения Института общей и неорганической химии им. Н.С. Курнакова РАН
  • Профессор — Базовая кафедра неорганической химии и материаловедения Института общей и неорганической химии им. Н.С. Курнакова РАН
  • Академический директор — Аспирантская школа по химии

Био

  • · Начал работать в НИУ ВШЭ в 2009 году.
  • · Научно-педагогический стаж: 33 года.

Образование

  • 2006 · Член-корреспондент РАН
  • 1995 · Ученое звание: Профессор
  • 1995 · Доктор наук
  • 1978 · Специалитет: Московский государственный университет им. М.В. Ломоносова, специальность «Химия», квалификация «Химик»

Опыт работы

  • · 1994-2018: Институт общей и неорганической химии РАН им. Н.С. Курнакова:
  • · Ведущий научный сотрудник, Заведующий сектором, Заведующий лабораторией, Главный научный сотрудник
  • · 2010-2018: Институт нефтехимического синтеза РАН им. А.В. Топчиева:
  • · Заведующий лабораторией
  • · 1997-2009: Российский фонд фундаментальных исследований:
  • · Начальник отдела, Ответственный секретарь
  • · 1994-2018: Российский химико-технологический университет им. Д.И.Менделеева:
  • · Профессор
  • · 2009-2018: Московский государственный университет им. М.В.Ломоносова:
  • · Младший научный сотрудник, ассистент, доцент, профессор

Награды и поощрения

  • · Почетная грамота НИУ ВШЭ (март 2026)
  • · Благодарность НИУ ВШЭ (март 2024)
  • · Медаль Ордена "За заслуги перед Отечеством" II степени (февраль 2024)
  • · Благодарность Факультета химии НИУ ВШЭ (февраль 2023)
  • · Благодарственное письмо проректора НИУ ВШЭ (ноябрь 2021)
  • · Надбавка за публикацию в журнале из Списка А (и приравненном к нему научном издании) (2025–2026, 2024–2025, 2023–2024)
  • · Надбавка за публикацию в международном рецензируемом научном издании (2022–2023, 2021–2022, 2019–2020)
  • · Лучший преподаватель — 2025

Гранты и проекты

  • — · на соискание учёной степени кандидата наук

Конференции (1)

Показать все
  • · 2018: 14th International Conference “Fundamental problems of solid state ionics” (Черноголовка). Доклад: Ion transport in composite membranes based on polybenzimidazoles and silica with modified surface

Идентификаторы исследователя

  • ORCID: 0000-0001-8446-6198
  • ResearcherID: C-2070-2013
  • SPIN РИНЦ: 8429-8844
  • Scopus AuthorID: 7005239278

Публикации (90)

Пoлимepныe элeктpoлиты для мeтaлл-иoнныx aккyмyлятopoв

2020 · ARTICLE · ru

Рассмотрены полимерные электролиты для литий- и натрий-ионных аккумуляторов. Прогресс исследований в этой области обусловлен потребностью создания твердотельных аккумуляторов, характеризующихся безопасностью и стабильностью. Результатом работ является синтез ряда электролитов с проводимостью не менее 10-4 См∙см-1 при 25°С. Описаны основные типы полимерных электролитов: типа полимер/соль, с добавкой неорганических частиц и анионных акцепторов, а также полимерные электролиты на основе катионообменных мембран. Обсуждаются различные способы увеличения ионной проводимости и механизмы ионного переноса в данных системах. Рассмотрены перспективы применения полимерных электролитов в литий- и натрий-ионных аккумуляторах.

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HYBRID MEMBRANES BASED ON ZIRCONIUM PHOSPHONATES

2020 · ARTICLE · en

Синтезированы фосфонаты состава Zr(PO3(CH2)nPh)2 с n = 0, 1, 3. Получены гибридные мембраны на основе мембраны МФ-4СК и синтезированных фосфонатов и исследовано влияние допанта, его содержания и метода синтеза на ионпроводящие свойства мембран в сравнении с гибридными мембранами на основе кислого фосфата циркония. Обсуждаются причины влияния допанта на проводящие свойства.

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Proton conductivity of hybrid membranes based on polybenzimidazoles and surface-sulfonated silica

2019 · ARTICLE · en

Hybrid membranes based on polybenzimidazole PBI-O-PhT (a polymer based on 3,3′,4,4′‑tetraaminodiphenyl oxide and 3,3‑bis(p‑carboxyphenyl)phthalide) were obtained by casting with silica particles with the surface modified by sulfonic groups. The morphology, thermal stability, proton conductivity under various conditions, and hydrogen permeability of the obtained membranes were investigated. It was shown that modification with small amounts of silica (2–5%) increases the conductivity and practically has no influence on the gas permeability of the hybrid membranes.

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Transport properties of MF-4SС membranes doped by sulfonated zirconia

2019 · ARTICLE · en

Composite materials based on homogeneous perfluorinated cation exchange membranes MF-4SK and sulfonated zirconium oxide were obtained by in situ and casting methods and their transport properties and gas permeability were studied. With the introduction of sulfonated zirconia, the conductivity of in situ and casting membranes increases at room temperature by more than 1.5 and 4 times, respectively. The anion transfer numbers characterizing the undesirable anion transfer for composite membranes obtained by the in situ and casting methods decrease by more than 1.5 times (from 0.026 to 0.020 and from 0.020 to 0.014, respectively). For samples based on MF-4SK membranes and zirconium oxide, a significant (more than 3 times) decrease in hydrogen permeability was noted. The differences in the observed values ​​of moisture content, conductivity and mutual diffusion of the obtained composite membranes are discussed.

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New Proton-Conducting Membranes Based on Phosphorylated Polybenzimidazole and Silica

2019 · ARTICLE · en

We have synthesized hybrid membranes based on N-phosphorylated polybenzimidazole, containing different percentages of silica (2–20 wt %). The materials have been characterized by scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis, IR spectroscopy, and impedance spectroscopy. The membranes have been shown to contain silica nanoparticles with a bimodal size distribution: 3–5 and 20–60 nm. The hybrid membranes have high proton conductivity (9.7 mS/cm at 130°C), which has a maximum when the dopant content is 2–10 wt %. The phosphonic groups grafted onto the polymer ensure additional hydration of the membranes at increased humidity. The addition of silica helps to reduce the gas permeability of the membranes by a factor of ~1.5

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Improving the conductivity and permselectivity of ion-exchange membranes by introduction of inorganic oxide nanoparticles: impact of acid–base properties

2019 · ARTICLE · en

In the present paper, the influence of acid–base properties of inorganic particles in ion-exchange membrane-based nanocomposites on their physicochemical and transport properties was investigated. For this purpose, particles of Zr, Ti, and Si oxides have been synthesized in situ in the system of pores and channels of the membranes. Depending on the acid–base properties of oxides, introduction of nanoparticles can increase or decrease the water uptake, conductivity, and selectivity. A new approach to crosslinking of ion-exchange membranes by incorporating ZrO2 particles into their matrix is proposed. Such cross-linking provides an improvement of swelling, conductivity, and salt permselectivity of the membrane in Na+-form. These parameters are important for successful application of such materials in direct and reverse electrodialysis, electrodeionization, and diffusion dialysis. For example, incorporation of 10 wt% of zirconia leads to a Bcross-linking^ of the membrane, i.e., binding of 45–50% of sulfonic groups, accompanied by a decrease of the water uptake by more than twofold and an increase of apparent transport numbers.

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Ru-Rh based catalysts for hydrogen production via methanol steam reforming in conventional and membrane reactors

2019 · ARTICLE · en

Results of hydrogen production study in methanol steam reforming (MSR) process with the use of Ru0.5eRh0.5 catalysts supported on different carbon materials: synthetic graphitelike material Sibunit, carbon black Ketjenblack EC600DJ, detonation nanodiamonds (DND) and ZrO2-based material with fluorite structure, doped with ceria, have been described. The samples have been tested in conventional flow reactor and membrane (MR) reactor, containing Pd-based membranes with different composition, thickness and surface architecture. It has been shown that the catalytic activity of the composites depends on the support nature. The RueRh/DND catalyst exhibits the highest activity, whereas Rue Rh/Ce0.1Zr0.9O2ed is the most selective. The use of PdeAg (23%) foil with the surface modified by palladium black showed great advantages comparing to the smooth dense membrane. The use of the MR with the PdeAg membrane improves the MSR reaction and provides almost 50% increase in the hydrogen yield. The hydrogen produced with the use of the MR is ultra pure.

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High pressure synthesis and transport properties of a perfluorinated sulfocationic exchange membrane

2019 · ARTICLE · en

A new perfluorinated sulfocationic polymer and a membrane based thereon have been produced using the thermally initiated high-pressure polymerization. The proton conductivity of obtained material is higher than that of commercial Nafion membranes and reaches 57 mS cm–1 at 21 C and 114 mS cm–1 at 79 C.

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Effects of Support Structure and Composition on the Activity of Cu–Ni Catalysts for Methanol Steam Reforming

2019 · ARTICLE · en

We have studied the catalytic activity of Cu–Ni bimetallic catalysts on yttrium-, tin-, zinc-, and niobium-doped zirconia and ceria supports for methanol steam reforming (MSR), a process for hydrogen production, and examined the effect of the nature of the dopants and annealing temperature on the structure and particle size of the oxide supports and the catalytic activity of the metal oxide composites. In all cases, the addition of heterovalent ions improved the catalytic activity of the materials for the MSR process in comparison with undoped zirconia. The highest hydrogen yield was reached in the case of catalysts doped with niobium and yttrium oxides.

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Polymer Electrolytes for LIBs based on Perfluorinated Sulfocationic Nepem-117 Membrane and Aprotic Solvents

2019 · ARTICLE · en

Polymer electrolytes have been obtained by using Nepem-117 membranes in a Li+ form intercalated by polar aprotic solvents, such as dimethylformamide, dimethyl sulfoxide (DMSO), and dimethylacetamide (DMA), and solvent mixtures, such as ethylene carbonate-propylene carbonate (EC-PC), EC-DMA, EC-PC-DMA, and EC-PCDMA-tetrahydrofuran. The obtained electrolytes have been characterized by IR impedance and 7Li pulsed field gradient NMR spectroscopy. Ion mobility was observed to increase with higher degrees of solvation of the membranes. A method is demonstrated to determine the solvent uptake corresponding to the percolation threshold. With comparable solvent uptake, materials containing a solvent with a higher permittivity and a lower viscosity have higher values of ionic conductivity. The membranes containing the three-component mixture of EC-PC-DMA show the highest ionic conductivity values (8.1 and 2.1 mS/cm at 25 and −20 °C, respectively). Such values exceed the conductivity of electrolytes on the basis of the Nafion membranes solvated with aprotic solvents.

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Курсы (6)