nucВестник НЯЦ РКNNC RK Bulletin1729-75161729-7885Национальный ядерный центр Республики Казахстан10.52676/1729-7885-2026-2-12-19nuc-971Research ArticleСтатьиСИНТЕЗ ЭЛЕКТРОДНОГО МАТЕРИАЛА ИЗ ЧАЙНОЙ БИОМАССЫ МЕТОДОМ МИКРОВОЛНОВОЙ ОБРАБОТКИ ДЛЯ УСТРОЙСТВ НАКОПЛЕНИЯ ЭНЕРГИИMICROWAVE SYNTHESIS OF ELECTRODE MATERIAL FROM TEA BIOMASS FOR ENERGY STORAGE SYSTEMShttps://orcid.org/0009-0007-5211-6098ДүйсенбекӘ. Н.DuisenbekA. N.

ул. Сатпаева, 22, Алматы; ул. Толе би, 59, Алматы; ул. Богенбай батыра, 172, Алматы

22 Satpayev str., Almaty; 59 Tole bi str., Almaty; 172 Bogenbay Batyr Str., Almaty

aselka_star@mail.ruhttps://orcid.org/0000-0001-6880-7693БейсеновР. Е.BeissenovR. E.

ул. Толе би, 59, Алматы; ул. Богенбай батыра, 172, Алматы

59 Tole bi str., Almaty; 172 Bogenbay Batyr Str., Almaty

renat7787@mail.ruАсқарулыК.AskarulyK.

ул. Сатпаева, 22, Алматы; ул. Богенбай батыра, 172, Алматы

22 Satpayev str., Almaty; 172 Bogenbay Batyr Str.., Almaty

k.askaruly@gmail.comБейсеноваЕ. Е.BeissenovaE. E.

ул. Сатпаева, 22, Алматы; ул. Богенбай батыра, 172, Алматы

22 Satpayev str., Almaty; 172 Bogenbay Batyr Str.., Almaty

mamyrbayeva.e@gmail.comСатбаев Университет; Казахстанско-Британский технический университет; Институт проблем горенияКазахстанKazNRTU named after K.I. Satbayev; Kazakh-British Technical University; Institute of Combustion ProblemsKazakhstanКазахстанско-Британский технический университет; Институт проблем горенияКазахстанKazakh-British Technical University; Institute of Combustion ProblemsKazakhstanСатбаев Университет; Институт проблем горенияКазахстанKazNRTU named after K.I. Satbayev; Institute of Combustion ProblemsKazakhstan202609082026021219Copyright © Дүйсенбек Ә.Н., Бейсенов Р.Е., Асқарулы К., Бейсенова Е.Е., 20262026Дүйсенбек Ә.Н., Бейсенов Р.Е., Асқарулы К., Бейсенова Е.Е.Duisenbek A.N., Beissenov R.E., Askaruly K., Beissenova E.E.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/971

Данная статья посвящена получению углеродного материала из отходов чая для систем накопления энергии и исследованию его свойств. Процесс синтеза осуществлялся методом микроволновой карбонизации и физической активацией в атмосфере CO₂. Морфологические и структурные характеристики образцов были определены с использованием методов сканирующей электронной микроскопии, рентгенофазового анализа и рамановской спектроскопии. Синтезированный активированный углерод отличался высокой пористостью и достаточной электропроводностью. По результатам рентгенофазового анализа наблюдались дифракционные пики (002) и (100), что свидетельствует о склонности полученного углеродного материала к образованию графитоподобной структуры. В спектре Рамана были зафиксированы пики D (≈1350 см⁻¹) и G (≈1580 см⁻¹), указывающие на наличие дефектов и графитовых доменов в структуре углерода. Отношение интенсивностей ID/IG составило 0,73, что свидетельствует о средней упорядоченности материала. Электрохимические характеристики активированного углерода, полученного из чайных отходов, были исследованы методами циклической вольтамперометрии, гальваностатического заряд-разряда и импедансной спектроскопии. Согласно результатам, при плотности тока 500 мА/г удельная емкость углерода достигла 116 Ф/г. Полученные данные подтверждают перспективность разработки углеродных материалов для суперконденсаторов и их потенциал в повышении эффективности устройств накопления энергии.

This article focuses on the production of a carbon material from tea waste for energy storage systems and the investigation of its properties. The synthesis process was carried out via microwave carbonization followed by physical activation in a CO₂ atmosphere. The morphological and structural characteristics of the samples were determined using scanning electron microscopy (SEM), X-ray diffraction (XRD), and Raman spectroscopy. The synthesized activated carbon exhibited high porosity and appreciable electrical conductivity. XRD analysis revealed diffraction peaks at (002) and (100), indicating a tendency of the obtained carbon material to form a graphite-like structure. In the Raman spectrum, the D (≈1350 cm⁻¹) and G (≈1580 cm⁻¹) bands were observed, indicating the presence of defects and graphitic domains within the carbon structure. The intensity ratio ID/IG was 0.73, suggesting a relatively well-ordered structure. The electrochemical properties of the activated carbon derived from tea waste were investigated using cyclic voltammetry, galvanostatic charge-discharge cycling, and electrochemical impedance spectroscopy. According to the results, the specific capacitance of the carbon material reached up to 116 F/g at a current density of 500 mA/g. These findings confirm the promising potential of carbon materials derived from biomass for use in supercapacitors and their effectiveness in enhancing energy storage device performance.

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The authors declare that there are no conflicts of interest present.