Preparation and characterization of activated carbon from coal by chemical activation with KOH

Wazir, Arshad Hussain; Haq, Izhar Ul; Manan, Abdul; Khan, A. M.

doi:10.1080/19392699.2020.1727896

Cited by 26 publications

(10 citation statements)

References 41 publications

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“…The activation method via NaOH or KOH is that an atomic species called K and Na forms in situ and intercalates between the graphene layers of the carbon crystallite. Elsewhere, in the case of well-ordered graphitic carbon products, such intercalation is more pronounced and prevalent. ,,, Chemical activation has many advantages over physical activation, including a lower activation temperature, a quicker activation time, a comparatively higher carbon yield, and a greater specific surface area with porosity. − Table summarizes the chemical activation of coal to make activated carbon in previous research work.…”

Section: Coal-derived Activated Carbon For Electrochemical Energy Sto...mentioning

confidence: 99%

Coal-Derived Activated Carbon for Electrochemical Energy Storage: Status on Supercapacitor, Li-Ion Battery, and Li–S Battery Applications

2021

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In this era of exponential growth in energy demand and its adverse effect on global warming, electrochemical energy storage systems have been a hot pursuit in both the scientific and industrial communities. In this regard, supercapacitors, Li-ion batteries, and Li–S batteries have evolved as the most plausible storage systems with excellent commercial adaptations. Intending to get the best performance from these systems, researchers all over the world have been engaging to develop various new methods for the synthesis of advanced carbon materials with a target of economical viability, abundance, low cost, and ease of preparation. Among them, activated carbon has proven to be an attractive electrode material due to its many advantageous properties such as a large surface area, high pore density, good conductivity, low cost, and good mechanical and chemical stability compared to other alternatives, such as high-cost graphene, carbon nanotubes, Mxenes, transition metal complexes, and conducting polymers. Among the numerous synthetic and biological resources that are used for the synthesis of activated carbon, coal/coal-like materials have found tremendous importance in recent times due to their relative abundance, extremely low cost, and excellent large-scale production possibilities. The present review attempts to collect all the significant innovations carried out for the use of cheap and economically viable coal-derived/-based activated carbon and its composites in supercapacitors, Li-ion batteries, and Li–S batteries and to critically evaluate their comparative performances. The progress in advanced three-dimensional printing technology for these energy storage applications is also discussed. The highlight of this review is also to assess the challenges that remain for the synthesis of high-performance electroactive-activated carbon materials from coal-based resources as alternative electrode materials, which would become promising candidates in the foreseeable future.

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Section: Coal-derived Activated Carbon For Electrochemical Energy Sto...mentioning

confidence: 99%

Coal-Derived Activated Carbon for Electrochemical Energy Storage: Status on Supercapacitor, Li-Ion Battery, and Li–S Battery Applications

2021

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“…Pola difraksi sinar-X karbon aktif pada suhu aktivasi yang berbeda ditunjukkan pada Gambar 1. Ketiga sampel tersebut menunjukkan adanya puncak melebar pada sudut 2θ sekitar 23˚-25˚ dan 42˚-44˚ yang mengkonfirmasi bahwa material tersebut merupakan karbon dengan struktur amorf yang menunjukkan hasil serupa dengan penelitian yang pernah dilaporkan sebelumnya [8], [20]. Berdasarkan pola difraksi tersebut, dapat terlihat bahwa terjadi penurunan intensitas difraksi seiring dengan kenaikan suhu aktivasi yang mengindikasikan bahwa material tersebut bersifat lebih amorf.…”

Section: Hasil Dan Diskusiunclassified

“…Penelitian ini melaporkan mengenai pemanfaatan batubara sebagai prekursor dalam pembuatan karbon aktif. Batubara sangat berpotensial menghasilkan karbon aktif karena beberapa keunggulan yang dimilikinya, di antaranya yaitu kaya akan sumber karbon, murah dan masih memiliki cadangan yang melimpah meskipun merupakan sumber daya alam yang tidak dapat diperbaharui [8,16,17].…”

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Sintesis Dan Karakterisasi Karbon Aktif Dari Prekursor Batubara

Septiana

Teluma²,

Rifani³

2022

IPR

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In this work, coal derived activated carbon has been synthesized successfully. The activated carbon was prepared by soaking coal powder in KOH solution and continued by activation at varied temperature, i.e. 400, 500, and 600˚C. The performance of the activated carbon was determined by moisture content, iodine adsorption, and methylene blue adsorption. The lowest moisture content was achieved by activated carbon which was activated at 400˚C, namely 3.77%, while the moisture content for activation temperature at 500 and 600˚C were 5.3 and 7.74% respectively. Moreover, the adsorption of iodine and methylene blue increased by the increase of the activation temperature due to high pore surfaces of activated carbon.

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“…В работе [52] авторы получали активированный углерод из низкосортного угля путем химической активации расплавом FeCl 3 . Было исследовано влияние несколько-стадийной активации инфильтрацией расплава FeCl 3 и физической активации CO 2 (рис.…”

Section: пористые углеродные материалыunclassified

“…4. Схематическое изображение механизма развития пористости при использовании различной стратегии активации [52].…”

Section: пористые углеродные материалыunclassified

Пути Комплексной Переработки Углей

Имаш¹,

Кайдар²,

Жуматаев³

et al. 2021

Горение и Плазмохимия

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Казахстан является важным мировым игроком в сфере добычи и экспорта угля на мировом рынке. На протяжении многих лет уголь является важным энергетическим ресурсом, однако развитие нанотехнологии и совершенствование существующих технологии глубокой переработки сырья, позволяют взглянуть на уголь не только как на энергетический ресурс, но и как на источник производства пористых углеродных материалов и извлечения редкоземельных элементов. Высокий спрос на редкие земли обратил взор исследователей на угольные ресурсы, как на потенциальный источник, особенно это касается высокозольных и низкосортных углей. В работе рассмотрены методы извлечения редких земель из угля и продуктов его переработки с применением кислотной, щелочной и солевой обработки. Показаны недостатки и преимущества каждого из методов. Также в работе были показаны современные пути комплексной переработки угля для получения пористых углеродных материалов, в виде активированных углей и наноуглеродного материала. Показано, что, применяя методы химической и физической активации можно получить пористые материалы с развитой удельной поверхностью и различным соотношением мезо-, микро- и макропор. Таким образом, рассмотрены новые пути переработки угля для получения новых функциональных материалов.

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Preparation and characterization of activated carbon from coal by chemical activation with KOH

Cited by 26 publications

References 41 publications

Coal-Derived Activated Carbon for Electrochemical Energy Storage: Status on Supercapacitor, Li-Ion Battery, and Li–S Battery Applications

Coal-Derived Activated Carbon for Electrochemical Energy Storage: Status on Supercapacitor, Li-Ion Battery, and Li–S Battery Applications

Sintesis Dan Karakterisasi Karbon Aktif Dari Prekursor Batubara

Пути Комплексной Переработки Углей

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