Journal ArticleDOI
Synthesis, characterization and radionuclide (137Cs) trapping properties of a carbon foam
Prasanta Jana,V. Ganesan +1 more
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In this article, a low-density carbon foam was synthesized from an aqueous acidic sucrose solution and set into a solid green foam which was sintered in the temperature range 573-1223 K. The suitability of this carbon foam and a commercially available reticulated vitreous carbon for trapping radioactive 137Cs was studied by a tracer technique in static sodium at 473-K.About:
This article is published in Carbon.The article was published on 2009-11-01. It has received 27 citations till now. The article focuses on the topics: Carbon & Fourier transform infrared spectroscopy.read more
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Carbon foam: Preparation and application
TL;DR: Carbon foams are reviewed by focusing on their preparation and application as mentioned in this paper, and their preparation processes are discussed by classifying them into five categories: blowing and carbonization, template carbonisation, compression of exfoliated graphite, assembly of graphene nanosheets and others.
Journal ArticleDOI
Preparation of low density carbon foams by foaming molten sucrose using an aluminium nitrate blowing agent
R. Narasimman,Kuttan Prabhakaran +1 more
TL;DR: In this paper, low density carbon foams have been prepared by thermo-foaming of molten sucrose using aluminium nitrate as a blowing agent to produce solid organic foams followed by dehydration and carbonization.
Journal ArticleDOI
Direct Synthesis of Bacteria-Derived Carbonaceous Nanofibers as a Highly Efficient Material for Radionuclides Elimination
Yubing Sun,Yubing Sun,Xiangxue Wang,Congcong Ding,Wencai Cheng,Changlun Chen,Changlun Chen,Tasawar Hayat,Ahmed Alsaedi,Jun Hu,Jun Hu,Xiangke Wang,Xiangke Wang +12 more
TL;DR: In this article, the maximum adsorption capacities of the CNFs calculated from the Langmuir model at pH 4.5 and 293 K were 67.11 mg/g for Sr(II) and 57.47 mg/G for Cs(I) and showed that the outer-sphere surface complexation dominated the radionuclide adaption at pH 6.0.
Journal ArticleDOI
Preparation of carbon foams with enhanced oxidation resistance by foaming molten sucrose using a boric acid blowing agent
R. Narasimman,Kuttan Prabhakaran +1 more
TL;DR: In this paper, boron-doped carbon foams from molten sucrose were analyzed and the room temperature thermal conductivity was found to be in the range of 0.057-0.043 Wm −1 ǫ K −1.
Journal ArticleDOI
Preparation of carbon foams by thermo-foaming of activated carbon powder dispersions in an aqueous sucrose resin
R. Narasimman,Kuttan Prabhakaran +1 more
TL;DR: In this article, the authors used activated carbon (AC) powder dispersions in an aqueous sucrose resin followed by carbonization to prepare carbon foams, which were characterized by viscosity measurements and sedimentation studies.
References
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Book
Polymeric Carbons: Carbon Fibre, Glass and Char
TL;DR: Polymetric carbons as discussed by the authors have been used in many applications, such as pyrolysis of polymers and fabrication of polymeric polymers, as well as chemical reactivity.
Journal ArticleDOI
Synthesis of carbon micro-spheres by a glucose hydrothermal method
TL;DR: In this paper, carbon micro-spheres with a regular and perfect shape, high yields and narrow size distribution were successfully synthesized by a hydrothermal route in a stainless steel autoclave.
Patent
Method of making a carbon foam material and resultant product
TL;DR: In this paper, a method of making anisotropic carbon foam material includes de-ashing and hydrogenating bituminous coal, separating asphaltenes from oils contained in the coke precursor, coking the material to create a carbon foam.
Journal ArticleDOI
Fabrication of bimodal porous alumina ceramics
TL;DR: In this paper, an alumina foam with two kinds of pores was prepared by combining the sponge method and the pore-former method, and the effect of sintering temperature on foam strength was analyzed by discussing porosity and grain bonding area.