Porous silicon film overcoating biomass char-supported catalysts for improved activity and stability in biomass pyrolysis tar decomposition

2021 ◽  
Author(s):  
Shuang Liang ◽  
Beile Tian ◽  
Feiqiang Guo ◽  
Yichen Dong ◽  
Shilin Du ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Supported Catalysts ◽  
Silicon Film ◽  
High Density ◽  
Biomass Pyrolysis ◽  
Decomposition Reactions ◽  
Pyrolysis Tar ◽  
Biomass Char

In this work, porous silicon film overcoating biomass char-supported catalysts were synthesized and evaluated biomass pyrolysis tar decomposition reactions. With the presence of Ni and Fe (SC@Ni1Fe1@SiO2), high-density and well-dispersed...

Catalytic cracking of biomass pyrolysis tar over char-supported catalysts

2018 ◽  
Vol 167 ◽  
pp. 81-90 ◽  
Author(s):  
Feiqiang Guo ◽  
Xiaolei Li ◽  
Yuan Liu ◽  
Kuangye Peng ◽  
Chenglong Guo ◽  
...  
Keyword(s):  
Catalytic Cracking ◽  
Supported Catalysts ◽  
Biomass Pyrolysis ◽  
Pyrolysis Tar

Synthesis of biomimetic monolithic biochar-based catalysts for catalytic decomposition of biomass pyrolysis tar

Energy ◽  
2021 ◽  
Vol 222 ◽  
pp. 120002
Author(s):  
Beile Tian ◽  
Shilin Du ◽  
Feiqiang Guo ◽  
Yichen Dong ◽  
Songbo Mao ◽  
...  
Keyword(s):  
Catalytic Decomposition ◽  
Biomass Pyrolysis ◽  
Pyrolysis Tar

Magnetic Properties of Ferrous Ferric Oxide Confined in Porous Silicon

2010 ◽  
Vol 663-665 ◽  
pp. 1142-1145
Author(s):  
Yuan Ming Huang ◽  
Bao Gai Zhai ◽  
Qing Lan Ma ◽  
Ming Meng
Keyword(s):  
Electron Microscopy ◽  
Magnetic Properties ◽  
Iron Oxide ◽  
Porous Silicon ◽  
Ferrous Iron ◽  
Silicon Film ◽  
X Ray ◽  
Loop Measurement ◽  
Scanning Electron

During the chemical synthesis nanometer-sized particles of ferrous iron oxide were in situ infiltrated into the mesopores in a porous silicon film. The microstructures of porous silicon and the magnetic properties of the nanometer-sized particles of the ferrous iron oxide were characterized with scanning electron microscopy, X-ray diffractometry, and the hysteresis loop measurement, respectively. Our results have demonstrated that the magnetic properties of the nanometer-sized Fe3O4 particles can be dramatically modified when they are confined into the mesopores of the porous silicon film.

Comparative Study Of The Growth Curves Of B. subtilis, K. pneumoniae, C. xerosis And E. coli Bacteria In Medium Containing Nanometric Silicon Particles

2002 ◽  
Vol 737 ◽  
Author(s):  
Lilyanna Pérez ◽  
Marjorie Flores ◽  
J. Avalos ◽  
L. San Miguel ◽  
O. Resto ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Growth Curve ◽  
Silicon Nanoparticles ◽  
Silicon Film ◽  
Growth Curves ◽  
Bacterial Strains ◽  
E Coli ◽  
Standard Curve ◽  
Nanometric Particles ◽  
Silicon Particles

ABSTRACTIn this research nanometric particles from luminescent (625nm) porous silicon film were synthesized. This particles were later inoculated in bacterial strains of B. subtilis (BSi) and K. pneumoniae (KSi). A comparison of the behavior of their growth curve and the ones reported for C. xerosis (XSi) and E. coli (ESi) in presence of silicon nanoparticles is presented. The growth curve of BSi, as well as the KSi, present changes compared to their standard curves. The BSi growth curve grows below the standard curve after the fifth hour, while in the KSi this happens after the eighth hour. Based on our preliminary findings we can speculate that at this point in time a critical population is present, and this may give rise to the possible incorporation of the silicon particles by the bacteria, or a possible pleomorphism inhibits reproduction. The stationary region, in both cases, takes place sooner than in the standard curve. No significant oscillations are observed in any case, which differs form the XSi curve, were oscillations of intervals of almost 1 hour were reported. In addition, these curves have a different behavior when compared to the ESi growth curve, in which no significant differences between the standard and the particle containing sample were reported.

Effect of the composition of electrolyte on separation of porous silicon film by electrochemical etching

2003 ◽  
Vol 197 (2) ◽  
pp. 507-511 ◽  
Author(s):  
C. S. Solanki ◽  
R. R. Bilyalov ◽  
J. Poortmans ◽  
J.-P. Celis ◽  
J. Nijs
Keyword(s):  
Porous Silicon ◽  
Electrochemical Etching ◽  
Silicon Film ◽  
Effect Of The Composition

High-density crystalline quantum dots in blue emitting porous silicon

1997 ◽  
Vol 81 (12) ◽  
pp. 7970-7972 ◽  
Author(s):  
Qianwang Chen ◽  
X.-J. Li ◽  
G. E. Zhou ◽  
Jingsheng Zhu ◽  
Shuyuan Zhang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Porous Silicon ◽  
High Density

Electrochemically Deposited Aluminum in Template of Porous Silicon Film

2010 ◽  
Vol 663-665 ◽  
pp. 1032-1035
Author(s):  
Bao Gai Zhai ◽  
Qing Lan Ma ◽  
Ming Meng ◽  
Yuan Ming Huang
Keyword(s):  
Porous Silicon ◽  
Electrochemical Deposition ◽  
High Surface ◽  
Silicon Film ◽  
Volume Ratio ◽  
Deposition Condition ◽  
Sem Images ◽  
Interesting Phenomenon ◽  
Electrochemically Deposited ◽  
The One

In this article, we report on the observations that in the aqueous electrolyte of aluminum nitrate, the thin metallic conducting films on both internal and external surface of porous silicon (PS) thin films that emit visible photoluminescence at room temperature prior to electrochemical deposition have been obtained under electrochemical deposition condition. Add to this high surface-to-volume ratio and these make it a good candidate for the catalyst supporter. We have investigated the surface morphology of PS after the interval of about 30 hours of electrochemically deposited aluminum by means of scanning electron microscopy (SEM). It has been shown from SEM images that not only micrometer-sized pores are smoothed by deposition of aluminum microcrystal, but also the presences of semi-sphere aluminum microcrystal which rooted in the tip of micrometer-sized pores are observed. On the one hand, this extremely interesting phenomenon which the micrometer-sized pores are smoothed may be explained in terms of principle of electrochemical deposition; on the other hand, we have laid the formation mechanism of semi-spherical aluminum microcrystal at the door of Gibbs free energy.

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