Fabricated carbon from minimally processed coke and coal tar pitch as a carbon-sequestering construction material

Wiratmoko, Arman; Halloran, John W.

doi:10.1007/s10853-008-3174-0

Cited by 9 publications

(4 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Untuk mendapatkan karbon dari arang tempurung kelapa, dilakukan pemanasan pada suhu tinggi hingga 600-1000°C agar pengotor menguap. Selama proses pemanasan, semua bahan nonkarbon harus dihilangkan untuk membentuk karbon murni yang berkaitan dalam menyusun strukturnya [31,32]. Proses pemanasan tempurung kelapa terdiri dari tahap pertama yaitu karbonisasi, sampel karbon menjadi kokas.…”

Section: Pemanfaatan Limbah Tempurung Kelapa Sebagai Bahan Baku Alternatif Sintesis Cntunclassified

Sintesis Carbon Nanotubes (CNT) Berbasis Bahan Alam Limbah Tempurung Kelapa dan Aplikasinya dalam Pembuatan Polimer Komposit Polimida-CNT: Review

Saputri

Saraswati²

2021

Proc.Chem.Conf

View full text Add to dashboard Cite

Carbon nanotubes (CNT) menjadi salah satu material unggul teknologi nano yang membawa banyak keuntungan karena memiliki sifat kimia dan mekanik yang baik. Hal ini menjadikan CNT dimanfaatkan di berbagai aplikasi nano-device ataupun material komposit. Beberapa metode yang sering digunakan untuk menumbuhkan CNT adalah deposisi uap kimia (Chemical Vapor Deposition), laser ablasi dan arc discharge. Kebanyakan sumber prekursor karbon dalam sintesis CNT diambil dari bahan bakar fosil yang memiliki kelemahan bahan tidak bisa diperbaharui dan menghabiskan biaya yang mahal. Limbah bahan alam atau hasil biomassa dapat menjadi alternatif bahan baku pembuatan CNT yang membawa keunggulan biaya murah, ketersediaan melimpah, dan hemat energi, contohnya seperti limbah tempurung kelapa yang mengandung unsur karbon tinggi. Tempurung kelapa telah dilaporkan sebagai salah satu bahan baku potensial produksi CNT. Aplikasi CNT dalam polimer komposit contohnya penggabungan dengan polimida. Keunggulan polimida adalah sifat mekaniknya yang sangat baik, stabilitas termal, dan ketahanan kimia. Namun, polimida memiliki kelemahan dalam konduktivitas termal yang rendah. Penambahan CNT ke dalam polimida dapat meningkatkan konduktivitas termal sehingga meningkatkan kinerja polimer tersebut. Synthesis of Coconut-Shell Waste-based Carbon nanotubes (CNT) and Its Application in Polymer Composite Polyimide-CNT Fabrication: Review. Carbon nanotubes (CNTs) have become one of the excellent materials for nanotechnology which brings many advantages because of their good chemical and mechanical properties, inducing CNTs to be used in various nano-device applications or composite materials. Some of the methods commonly used to grow CNTs are chemical vapor deposition, laser ablation, and arc discharge. Most sources of carbon precursors in CNTs synthesis are taken from fossil fuels which have the disadvantages of non-renewable materials and high cost. Natural waste or biomass products can be an alternative raw material for CNTs production which brings the advantages of low cost, abundant availability, and energy-saving, for example, such as coconut shell waste which contains high carbon elements. Coconut shell has been reported as one of the potential raw materials for CNT production. CNT applications in composite polymers are for example collaboration with polyimides. The advantages of polyimides are their excellent mechanical properties and chemical resistance. However, polyimides have a disadvantage in their low thermal conductivity. The addition of CNT into polyimides can increase its thermal conductivity enhancing polyimide performance.

show abstract

Section: Pemanfaatan Limbah Tempurung Kelapa Sebagai Bahan Baku Alternatif Sintesis Cntunclassified

Sintesis Carbon Nanotubes (CNT) Berbasis Bahan Alam Limbah Tempurung Kelapa dan Aplikasinya dalam Pembuatan Polimer Komposit Polimida-CNT: Review

Saputri

Saraswati²

2021

Proc.Chem.Conf

View full text Add to dashboard Cite

show abstract

“…The removal of impurities is conducted by high temperature heating up to 600 -1000 o C. This heating is also aimed to eliminate the compounds carried by the drainage of gas. During the heating process, all non-carbon materials must be removed to form a pure carbon as well as to arrange the structure (Wiratmoko and Halloran, 2009;Ebner et al, 2004). The removal of metals can be carried out by soaking the carbon in a solution of HCl (Fraga et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

“…Then, these samples were cooled in the furnace at a rate of 8 K/min, with a flow of argon gas. This process produced dense coconut shell coke or carboncarbon composite materials (Wiratmoko and Halloran, 2009;Miyazaki et al, 2005;Mothe and de Miranda, 2009).…”

mentioning

confidence: 99%

The Production and Characterization of Carbon Composite from Coconut Shell Charcoal

Rampe¹

2012

CORD

View full text Add to dashboard Cite

Structure and chemical composition of coconut shell carbon with polyvinyl alcohol (PVA) as the stimulant through the observation of TG-DTA, SEM-EDS, FTIR and XRD had been studied. The process was carried out by calcining coconut shell charcoal at the temperature of 873 and 1023 K under nitrogen flow, then mixed with polyvinyl alcohol (PVA) under composition of 2.5 to 7.5% wt. in water solvent. The development of carbon composite structure was observed by heating the samples in Argon gas of 1673 K, the rate of temperature was 10 K/min in 3 hours. The products were then analyzed by TG-DTA, SEM-EDS, FTIR and XRD. The result showed that the products were in uniform particle size of micrometer dimensions and spherical particles in shape, with average content of C element at 97.44% wt., aromatic character and semi-crystalline structure.

show abstract

“…To address the economics of HECAM-hydrogen compared to SRM-hydrogen, we present some results from Guerra 7 . To address the properties, we contrast literature values for the strength and density of conventional concrete and clay bricks with preliminary results for coal char-based materials 8 . To address atmospheric spoilage, we compare the carbon dioxide production (per GJ hydrogen energy) for HECAM and SRM, and the carbon dioxide production avoided by substituting carbon dioxide-producing Portland cement with carbon-sequestering CBM.…”

Section: Introductionmentioning

confidence: 99%

Carbon Building Materials from Coal Char: Durable Materials for Solid Carbon Sequestration to Enable Hydrogen Production by Coal Pyrolysis

Halloran

Guerra

2010

Ceramic Transactions Series

Self Cite

View full text Add to dashboard Cite

The pyrolysis of coal can produce hydrogen-rich gases for clean fuel. It also produces cokelike coal char. Rather than using the coal char as a fuel, it could provide the basis for carbon building materials that sequester the carbon in the solid state while performing an essential function. Data is presented on the properties of prototype of coal-char based solid carbons, which is stronger and lighter than conventional fired clay or concrete masonry.

show abstract

Fabricated carbon from minimally processed coke and coal tar pitch as a carbon-sequestering construction material

Cited by 9 publications

References 17 publications

Sintesis Carbon Nanotubes (CNT) Berbasis Bahan Alam Limbah Tempurung Kelapa dan Aplikasinya dalam Pembuatan Polimer Komposit Polimida-CNT: Review

Sintesis Carbon Nanotubes (CNT) Berbasis Bahan Alam Limbah Tempurung Kelapa dan Aplikasinya dalam Pembuatan Polimer Komposit Polimida-CNT: Review

The Production and Characterization of Carbon Composite from Coconut Shell Charcoal

Carbon Building Materials from Coal Char: Durable Materials for Solid Carbon Sequestration to Enable Hydrogen Production by Coal Pyrolysis

Contact Info

Product

Resources

About