Microstructure regulation of super activated carbon from biomass source corncob with enhanced hydrogen uptake

Zhang, Cunman; Zhang, Geng; Cai, Mei; Zhang, Jing; Liu, Xupeng; Xin, Haifeng; Ma, Jie

doi:10.1016/j.ijhydene.2013.04.163

Cited by 86 publications

(82 citation statements)

References 15 publications

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“…Among these ACs have proved to be one of the most promising adsorbent material for storage of hydrogen due to their availability, low cost and with tunable surface area. Natural raw materials like corn cob [29,30], rice husks [31,32], nut shells [33], oil seeds [34], coffee bean [35], hemp stem [36], corn stalks [37], etc. have been studied for hydrogen storage.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of activated carbon from jute fibers for hydrogen storage

Ramesh

Rajalakshmi

Dhathathreyan

2017

Renew. Energy Environ. Sustain.

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Abstract. Activated carbons (ACs) are being used as energy storage material especially for hydrogen storage application. In the present work, AC materials were synthesized from jute fibers, activated and treated using KOH to increase the porosity of samples. These AC samples retained the fibrous structure even after chemical activation at high temperature of 700°C. Channel like structures were formed which helps to increase the hydrogen storage capacity. The surface area of these samples varied from 380 to 1220 m 2 /g due to carbonization and activation treatment. The sample with high surface area of 1224 m 2 /g showed a high hydrogen uptake capacity of 1.2 wt.% at 30°C and 40 bar of H 2 gas pressure. This sample also showed a high pore volume of 0.74 cm 3 /g. These results indicate that the raw material jute fibers can be used as hydrogen storage medium after thermal and chemical treatment which increases the surface area and micropore volume.

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Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of activated carbon from jute fibers for hydrogen storage

Ramesh

Rajalakshmi

Dhathathreyan

2017

Renew. Energy Environ. Sustain.

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“…Apart from being used for dye sorption, corncobs are also reported to be widely used for removal of heavy metals from aqueous solutions [13][14][15][16]. Corncobs are also equally commonly used to obtain activated carbon [17][18][19][20][21]. Activated carbon obtained from corncobs is used to adsorb several water contaminants such as methylene glycol [22], chlorophenol [23], dyes [24] or heavy metal ions [16,[25][26][27].…”

Section: Methodsmentioning

confidence: 99%

Sorption dynamics of Direct Orange 26 dye onto a corncob plant sorbent

Tomczak

Blus

2016

Ecological Chemistry and Engineering S

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Abstract:The azo dye and plant-derived sorbent system was investigated in this paper. Direct Orange 26 azo dye was acquired from Boruta-Zachem Kolor Sp. z o.o. Chemically modified granulated corncobs obtained from Chipsi Mais Germany were used as the biosorbent. The changes in the dye and sorbent concentrations with time were measured and used for further calculations. The experiments were carried out in a laboratory fixed bed column. Breakthrough curves were plotted for different initial concentrations, volumetric flow rates and bed heights. Sorption dynamics was described by a model presented in the literature. It was demonstrated that Infrared analysis of the system allows to determine the nature of the dye-sorbent bond. It was found that corncobs can be used as a promising sorbent material.

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“…Its production needs high temperatures and the additional activation processes, therefore, comparatively, the production of (bio)char is cheaper since it has lower initial energy requirements; in addition, feedstocks are abundant and low cost, especially when char is obtained from urban sludge. Studies report that PCM showed excellent ability to remove contaminants such as heavy metals and organic and other pollutants from aqueous solutions, and some even exhibit comparable or better adsorption properties than commercial activated carbon [47].…”

Section: Water and Wastewater Treatmentmentioning

confidence: 99%

Properties and Beneficial Uses of (Bio)Chars, with Special Attention to Products from Sewage Sludge Pyrolysis

Callegari

Capodaglio

2018

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Abstract:Residual sludge disposal costs may constitute up to, and sometimes above, 50% of the total cost of operation of a Wastewater Treatment Plant (WWTP) and contribute approximately 40% of the total greenhouse gas (GHG) emissions associated with its operation. Traditionally, wastewater sludges are processed for: (a) reduction of total weight and volume to facilitate their transfer and subsequent treatments; (b) stabilization of contained organic material and destruction of pathogenic microorganisms, elimination of noxious odors, and reduction of putrefaction potential and, at an increasing degree; (c) value addition by developing economically viable recovery of energy and residual constituents. Among several other processes, pyrolysis of sludge biomass is being experimented with by some researchers. From the process, oil with composition not dissimilar to that of biodiesels, syngas, and a solid residue can be obtained. While the advantage of obtaining sludge-derived liquid and gaseous fuels is obvious to most, the solid residue from the process, or char (also indicated as biochar by many), may also have several useful, initially unexpected applications. Recently, the char fraction is getting attention from the scientific community due to its potential to improve agricultural soils' productivity, remediate contaminated soils, and supposed, possible mitigation effects on climate change. This paper first discusses sludge-pyrolysis-derived char production fundamentals (including relationships between char, bio-oil, and syngas fractions in different process operating conditions, general char properties, and possible beneficial uses). Then, based on current authors' experiments with microwave-assisted sludge pyrolysis aimed at maximization of liquid fuel extraction, evaluate specific produced char characteristics and production to define its properties and most appropriate beneficial use applications in this type of setting.

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Microstructure regulation of super activated carbon from biomass source corncob with enhanced hydrogen uptake

Cited by 86 publications

References 15 publications

Synthesis and characterization of activated carbon from jute fibers for hydrogen storage

Synthesis and characterization of activated carbon from jute fibers for hydrogen storage

Sorption dynamics of Direct Orange 26 dye onto a corncob plant sorbent

Properties and Beneficial Uses of (Bio)Chars, with Special Attention to Products from Sewage Sludge Pyrolysis

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