Results 121 to 130 of about 206 (155)

Supercapacitors Based on Activated Carbons, Products of Rice Hull Processing

Russian Journal of Physical Chemistry A, 2021
Rice hull ash (RHA) produced commercially by burning hulls of rice growing in the Krasnodar Krai, Russia, is characterized by a series of modern physicochemical investigation methods. The RHA is shown to contain amorphous silica (>70 wt %) and carbon (~8 wt %).
R. Yu. Novotvortsev, E. V. Suslova, Quanki Chen, A. N. Akulich, Li Lu, S. V. Savilov   +5 more
openaire   +1 more source

Adsorption of cobalt by activated carbon from the rice hulls

Journal of Environmental Science and Health . Part A: Environmental Science and Engineering and Toxicology, 1997
Abstract The removal of cobalt (II) ion from aqueous solutions, by adsorption on activated carbon prepared from the rice hulls (ACRH), has been investigated depending on pH, activated carbon dosage, contact time, initial metal concentration and solution temperature. The optimum values of pH, ACRH dosage and contact time have been determined as 6–7, 1.5
Murat Teker, Ömer Saltabaş, Mustafa İmamoğlu   +2 more
openaire   +1 more source

Comparison between Carbon Nanotube-Based, Graphite-Based, and Rice Hull Carbon-Based Electrodes with Rice Hull Silica as Catalyst for Electrochemical Detection of Copper

Key Engineering Materials, 2018
This study aimed to determine the copper ion-sensing ability of a carbon nanotube (CNT)-based sensor with carbonized rice hull (CRH) as catalyst. The 50:50 CNT-CRH electrode was compared to 100% graphite, 100% CRH, 100% CNT, 50:50 graphite-CRH, and 70:30 graphite-CRH electrodes.
Leandre Emile D. Apostol, Jose Victor O. Sacueza, John Paul Klien Zeus S. Visaya, Franz Kevin B. Manalo, Emmanuel A. Florido   +4 more
openaire   +1 more source

Structure and properties of a moulded carbon derived from rice hull

Journal of Materials Science, 1995
Rice hull was moulded into a tube (outer diameter: 54 mm; inner diameter: 17 mm, length: c. 170 mm) by use of an extruder and then carbonized in nitrogen atmosphere below 1000 °C. Ash content of the hull was 16 wt%, of which c. 94 and 4 wt% were SiO2 and K2O, respectively.
A. Oya, N. Kishimoto, S. Mashio, K. Kumakura, T. Suzuki, B. Serrano-Talavera, A. Linares-Solano   +6 more
openaire   +1 more source

Oxidative modifications of rice hull-based carbons for dibenzothiophene adsorptive removal

Catalysis Today, 2013
Abstract Four oxidative modifications using concentrated nitric acid, concentrated sulfuric acid, peracetic acid, and hot air, were employed to treat the rice hull (RH) activated by KOH at 750 °C, which produced four RH-based carbon materials with different surface chemical properties.
G.X. Yu, M. Jin, J. Sun, X.L. Zhou, L.F. Chen, J.A. Wang   +5 more
openaire   +1 more source

High hydrogen storage capacity of rice hull based porous carbon

International Journal of Hydrogen Energy, 2012
A kind of porous carbon with high specific surface area (approximately 4000 m(2)/g) was prepared from rice hull through carbonization and sodium hydroxide activation. The effects of preparation parameters on the characteristics of the porous carbon were studied.
Haibin Chen, Haibo Wang, Zhiping Xue, Lufeng Yang, Yong Xiao, Mingtao Zheng, Bingfu Lei, Yingliang Liu, Lixian Sun   +8 more
openaire   +1 more source

Adsorption Of Cobalt By Activated Carbon From The Rice Hulls

2020
The removal of cobalt (II) ion from aqueous solutions, by adsorption on activated carbon prepared from the rice hulls (ACRH), has been investigated depending on pH, activated carbon dosage, contact time, initial metal concentration and solution temperature.
Sakarya Üniversitesi/Fen-Edebiyat Fakültesi/Kimya Bölümü, Teker, Murat, İmamoğlu, Mustafa, İmamoğlu, Mustafa   +3 more
openaire   +1 more source

Direct synthesis of tetramethoxysilane from rice hull ash by reaction with dimethyl carbonate

Inorganica Chimica Acta, 1993
Abstract Rice hull ash (92% SiO2 purity), when loaded with 5 wt.% of potassium hydroxide, reacts with dimethyl carbonate at 625 K to give almost quantitatively tetramethoxysilane. The ash also reacts with diethyl carbonate to give an 80% yield of tetraethoxysilane at 725 K.
Masanari Akiyama, Eiichi Suzuki, Yoshio Ono   +2 more
openaire   +1 more source

CARBONIZED RICE HULL AND VERMICULITE AS SUBSTRATES FOR INDOOR FARMING OF PECHAY MICROGREENS

Ecology, Environment and Conservation
Two varieties (Black Behi and Bok Choy) of pechay were used as microgreens to determine their response from two substrates (carbonized rice hull and vermiculite). The microgreens were grown under ambient conditions where the temperature and relative humidity 28 ± 2 and 65 ± 5% were recorded.
Joanah Rose Y. Fermin, Raymund Julius. G. Rosales, Micah Benize S. Gregorio-Balbas, Aira Lilac I. Pungtilan, Christian Butch Andrew A. Balbas   +4 more
openaire   +1 more source

Rice Hull Derived Porous Carbon and Its Cycling Performance of Lithium Sulfur Batteries

ECS Meeting Abstracts, 2014
Abstract not Available.
Xiang Li, Mingxia Gao, Yongfeng Liu, Hongge Pan   +3 more
openaire   +1 more source