scholarly journals Structural and Compositional Characterization of Fungus-Derived Pyrolytic Carbon Architectures

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Brennan Campbell ◽  
Robert Ionescu ◽  
Cengiz S. Ozkan ◽  
Mihrimah Ozkan

Three distinctive pyrolytic carbon structures, derived from three specific tissues ofAgaricus bisporusmushroom, were studied and characterized. The three structures discovered within the stalk, cap, and cap skin tissues were found to contain unique microarchitectures, which were preserved upon anoxic carbonization. Experiments also revealed the formation of salt pockets and deposits within each microarchitecture, leading to a potential natural hard-template method for porous carbon structures.

RSC Advances ◽  
2017 ◽  
Vol 7 (89) ◽  
pp. 56375-56381 ◽  
Author(s):  
Xinxin Jin ◽  
Yu Jiang ◽  
Qi Hu ◽  
Shaohua Zhang ◽  
Qike Jiang ◽  
...  

Low-cost dual transition metal (Fe and Co) based non-noble metal electrocatalysts (NNMEs) with large surface area and porous structure boost oxygen reduction reaction (ORR) performance in alkaline solution.


2011 ◽  
Vol 9 (1) ◽  
pp. 328-331 ◽  
Author(s):  
Haijiao Zhang ◽  
Zhijin Tan ◽  
Lin Wang ◽  
Zhiyong Li ◽  
Ping Gu ◽  
...  

2014 ◽  
Vol 896 ◽  
pp. 78-81
Author(s):  
Teruhisa Hongo ◽  
Yoshihiro Usami ◽  
Atsushi Yamazaki

Nanostructured WO3 was synthesized by a hard template method using platelet-shaped mesoporous silica SBA-15. The nanostructured WO3 consisted of nanorod arrays comprised of mixed crystalline tetragonal and monoclinic phases with the diameter of 8.5 nm and the length of 170-300 nm. The specific surface area was 30 m2/g, which was about 6 times higher compared to that synthesized without the template.


2017 ◽  
Vol 17 (1) ◽  
pp. 30
Author(s):  
Ratna Ediati ◽  
Amirul Mukminin ◽  
Nurul Widiastuti

A series of carbon with ZSM-5 mesoporous (ZMC) and Ni/ZMC ZSM-5 templates were synthesized and gravimetrically known its adsorption capacity to H2 gases. ZMC carbon was synthesized using a hard template method at a carbonation temperature of 900 oC with sucrose as a source of carbon. A mesoporous ZSM-5 template was synthesized by using a hydrothermal method at an aging and crystallization temperature of respectively 60oC and 150oC for as long as 24 hours. The characterized result of ZMC carbon using XRD powder has shown a diffracted pattern of amorphous carbon. Impregnating Ni with ZMC carbon each resulted in 5%, 15% and 25% of weight, which in turn also resulted in a diffractogram pattern of Ni/ZMC-5, Ni/ZMC-15, and Ni/ZMC-25, where each patterns were uniform and had no additional peaks. The results of SEM-EDAX showed that Ni had been successfully impregnated on the surface of ZMC carbon with a random morphology surface of ZMC carbon. The isothermal results of adsorption – desorption of N2 showed that the larger the Ni loading on the supporting ZMC carbon, the smaller the surface area of the ZMC specific carbon. The distribution of the pore size that was counted by using the BJH method, which was applied to all the samples, was as big as 3,8 nm. The adsorption capacity of H2 was measured by using the gravimetry method at ambient temperature for Ni/ZMC-5, Ni/ZMC-15, and Ni/ZMC-25, which each gave a weight percentage of 0,331%; 0,663% and 0,649% respectively, whilst the ZMC carbon has a weight of 2,18%.


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