A novel method for the synthesis of well-crystallized β-AlF3 with high surface area derived from γ-Al2O3

2011 ◽  
Vol 21 (25) ◽  
pp. 8987 ◽  
Author(s):  
Wen-Zhi Jia ◽  
Ji-Qing Lu ◽  
Ping Chen ◽  
Yue-Juan Wang ◽  
Meng-Fei Luo
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Novel Method

A novel method for preparing high surface area copper zirconia catalysts

2009 ◽  
Vol 360 (1) ◽  
pp. 98-105 ◽  
Author(s):  
Gonzalo Águila ◽  
Javier Jiménez ◽  
Sichem Guerrero ◽  
Francisco Gracia ◽  
Boris Chornik ◽  
...  
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Novel Method

Novel Method for Fast Characterization of High-Surface-Area Electrocatalytic Materials Using a Carbon Fiber Microelectrode

2010 ◽  
Vol 114 (6) ◽  
pp. 2640-2644 ◽  
Author(s):  
D. Strmcnik ◽  
Nejc Hodnik ◽  
S. B. Hocevar ◽  
D. van der Vliet ◽  
M. Zorko ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Carbon Fiber Microelectrode ◽  
Novel Method

Preparation and Characterization of Silica-Alumina-Pillared Montmorillonites with High Surface Area

2008 ◽  
Vol 368-372 ◽  
pp. 1712-1715
Author(s):  
Hong Yan Xu ◽  
Xiao Jun Bao ◽  
Ting Hai Wang ◽  
Yong Gang Wang
Keyword(s):  
Surface Area ◽  
Layer Structure ◽  
High Surface ◽  
High Surface Area ◽  
Nitrogen Adsorption ◽  
Bet Specific Surface Area ◽  
Silica Alumina ◽  
Novel Method ◽  
Pore Properties ◽  
Adsorption Desorption

The silica-alumina-pillared montmorillonite materials (SiAl-MMT) were developed by a novel method, which combined several techniques such as ion-exchange, intercalation and surfactant modification. The morphology, composite structure and pore properties of such composite materials, were investigated by X-ray powder diffraction (XRD), Scanning Electronic Microscopy (SEM), Fourier-transform infra-red (FTIR) spectra, as well as Nitrogen Adsorption-Desorption Isotherms. The layer structure of the prepared materials retained and their pore structures were found to be slit-shaped pores located between plate-like particles. The prepared SiAl-MMT materials had a BJH pore volume of 0.63cm3 g-1, a remarkably high BET specific surface area beyond 1000 m2 g-1, and a narrow pore size distribution in the mesoporous region 3.5-4 nm after thermal treatment at 600 °C.

Novel Method for Preparation of High Surface Area SnO2: Solvent Replacement by Alcohol

1997 ◽  
Vol 26 (3) ◽  
pp. 279-279 ◽  
Author(s):  
Kenji Suzuki ◽  
Atsushi Satsuma ◽  
Hisao Yoshida ◽  
Tadashi Hattori
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Solvent Replacement ◽  
Novel Method

Tenacious Mass Transfer Limitations Drive Catalytic Selectivity during Electrochemical Carbon Dioxide Reduction

2019 ◽  
Author(s):  
Kailun Yang ◽  
Recep Kas ◽  
Wilson A. Smith
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Catalyst Layer ◽  
Active Surface ◽  
Active Surface Area ◽  
High Concentration ◽  
Copper Electrodes ◽  
Surface Enhanced ◽  
Local Current

<p>This study evaluated the performance of the commonly used strong buffer electrolytes, i.e. phosphate buffers, during CO<sub>2</sub> electroreduction in neutral pH conditions by using in-situ surface enhanced infrared absorption spectroscopy (SEIRAS). Unfortunately, the buffers break down a lot faster than anticipated which has serious implications on many studies in the literature such as selectivity and kinetic analysis of the electrocatalysts. Increasing electrolyte concentration, surprisingly, did not extend the potential window of the phosphate buffers due to dramatic increase in hydrogen evolution reaction. Even high concentration phosphate buffers (1 M) break down within the potentials (-1 V vs RHE) where hydrocarbons are formed on copper electrodes. We have extended the discussion to high surface area electrodes by evaluating electrodes composed of copper nanowires. We would like highlight that it is not possible to cope with high local current densities on these high surface area electrodes by using high buffer capacity solutions and the CO<sub>2</sub> electrocatalysts are needed to be evaluated by casting thin nanoparticle films onto inert substrates as commonly employed in fuel cell reactions and up to now scarcely employed in CO<sub>2</sub> electroreduction. In addition, we underscore that normalization of the electrocatalytic activity to the electrochemical active surface area is not the ultimate solution due to concentration gradient along the catalyst layer.This will “underestimate” the activity of high surface electrocatalyst and the degree of underestimation will depend on the thickness, porosity and morphology of the catalyst layer. </p> <p> </p>

scholarly journals Rugae-like FeP nanocrystal assembly on a carbon cloth: an exceptionally efficient and stable cathode for hydrogen evolution

Nanoscale ◽  
2015 ◽  
Vol 7 (25) ◽  
pp. 10974-10981 ◽  
Author(s):  
Xiulin Yang ◽  
Ang-Yu Lu ◽  
Yihan Zhu ◽  
Shixiong Min ◽  
Mohamed Nejib Hedhili ◽  
...  
Keyword(s):  
Gas Phase ◽  
Surface Area ◽  
Hydrogen Evolution ◽  
Hydrogen Generation ◽  
High Surface ◽  
High Surface Area ◽  
Catalytic Efficiency ◽  
Carbon Cloth ◽  
Nanocrystal Assembly

High surface area FeP nanosheets on a carbon cloth were prepared by gas phase phosphidation of electroplated FeOOH, which exhibit exceptionally high catalytic efficiency and stability for hydrogen generation.

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