The preparation of high-surface-area cordierite monolith by acid treatment

1999 ◽  
Vol 182 (1) ◽  
pp. 137-146 ◽  
Author(s):  
Albert N Shigapov ◽  
George W Graham ◽  
Robert W McCabe ◽  
Michellene Paputa Peck ◽  
H Kiel Plummer
Keyword(s):  
Surface Area ◽  
Acid Treatment ◽  
High Surface ◽  
High Surface Area

scholarly journals Synthesis of high surface area TiO2 nanoparticles by mild acid treatment with HCl or HI for photocatalytic propene oxidation

2014 ◽  
Vol 154-155 ◽  
pp. 285-293 ◽  
Author(s):  
M. Ouzzine ◽  
J.A. Maciá-Agulló ◽  
M.A. Lillo-Ródenas ◽  
C. Quijada ◽  
A. Linares-Solano
Keyword(s):  
Tio2 Nanoparticles ◽  
Surface Area ◽  
Acid Treatment ◽  
High Surface ◽  
High Surface Area ◽  
Propene Oxidation ◽  
Mild Acid

Microwave assisted synthesis of high-surface area WO3 particles decorated with mosaic patterns via hydrochloric acid treatment of Bi2W2O9

RSC Advances ◽  
2015 ◽  
Vol 5 (95) ◽  
pp. 77839-77846 ◽  
Author(s):  
Fuminao Kishimoto ◽  
Dai Mochizuki ◽  
Masato M. Maitani ◽  
Eiichi Suzuki ◽  
Yuji Wada
Keyword(s):  
Hydrochloric Acid ◽  
Microwave Irradiation ◽  
Surface Area ◽  
Acid Treatment ◽  
High Surface ◽  
High Surface Area ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Patterned Structures ◽  
Hydrochloric Acid Treatment

High surface area WO3 particles with mosaic patterned-structures were obtained under microwave irradiation.

Influence of Acid-Treatment on Waste Lignin for Synthesis of Carbon Nanoparticle

2019 ◽  
Vol 824 ◽  
pp. 1-7
Author(s):  
Nutchaporn Ngamthanacom ◽  
Napat Kaewtrakulchai ◽  
Weerawut Chaiwat ◽  
Laemthong Chuenchom ◽  
Masayoshi Fuji ◽  
...  
Keyword(s):  
Phosphoric Acid ◽  
Surface Area ◽  
Carbon Nanoparticles ◽  
Acid Treatment ◽  
Fourier Transforms ◽  
High Surface ◽  
High Surface Area ◽  
High Porosity ◽  
Carbon Nanoparticle ◽  
Nitrogen Sorption

Waste lignin (WL) obtained from paper mills, was studied for its potential application in preparing carbon nanoparticles (CNPs) with high porosity. This was done by impregnation of 0, 5, 10 and 20% concentrations of phosphoric acid under various carbonization temperatures (600, 700, 800 and 900°C). The physicochemical properties of CNPs were characterized through nitrogen sorption, X-ray diffraction (XRD), Scanning electron microscopy (SEM), and Fourier transforms infrared spectroscopy (FTIR). Nitrogen sorption revealed that the condition using 10% concentration of phosphoric acid treatment at a carbonization temperature of 700°C formed carbon nanoparticles with a highly porous structure (Surface area 27.65 m2/g and pore volume 0.07 cm3/g). Additionally, in order to high surface area, porosity and concentrated carbon nanoparticle.

scholarly journals The Effect of Acid Treatment on the Limestone for Calcium Looping Process

2019 ◽  
Vol 8 (4) ◽  
pp. 6480-6483
Keyword(s):  
Oxalic Acid ◽  
Surface Area ◽  
Acid Treatment ◽  
High Surface ◽  
High Surface Area ◽  
Absorption Capacity ◽  
Sorbent Material ◽  
Calcium Looping ◽  
Mixing Method ◽  
Volume Size

Calcium Looping Process (CLP) is one of the carbon capturing technology, in which the sorbent material, CaO is absorbing CO2 from flue gases in power plant. However, good sorbent material have been facing several drawbacks such as low generability, and low absorption capacity. Acid treatment can improve the physical properties such as surface area of the sorbent material. This study was aim to synthesize and investigate the effect of acid treatment on the limestone as sorbent material using mixing method in order to maximize the CO2 carrying capacity. The amount of 0 ml, 2 ml, 4 ml, 6 ml, 8 ml and 10 ml of oxalic acid were varied in this study. The result demonstrated that 6 ml of oxalic acid produces highest hardness and high surface area and pore volume size, which favorable to be used as sorbent material in CLP process.

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.

High Surface Area NiCoP Nanostructure as Efficient Water Splitting Electrocatalyst for the Oxygen Evolution Reaction

2021 ◽  
pp. 111312
Author(s):  
Sisir Maity ◽  
Dheeraj Kumar Singh ◽  
Divya Bhutani ◽  
Suchitra Prasad ◽  
Umesh V. Waghmare ◽  
...  
Keyword(s):  
Surface Area ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Surface ◽  
High Surface Area

scholarly journals Fast synthesis of high surface area bio-based porous carbons for p-nitrophenol removal

MethodsX ◽  
2021 ◽  
pp. 101464
Author(s):  
Yichen Wu ◽  
Nan Zhang ◽  
Charles-François de Lannoy
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Porous Carbons ◽  
Fast Synthesis

Synthesis of high surface area and functionalized nanoporous biocarbons and their efficiency for CO2 capture and supercapacitors

2021 ◽  
Author(s):  
Gurwinder Singh ◽  
Rohan Bahadur ◽  
Ajanya Maria Ruban ◽  
Jefrin Marykala Davidraj ◽  
Dawei Su ◽  
...  
Keyword(s):  
Energy Storage ◽  
Surface Area ◽  
Co2 Capture ◽  
Water Purification ◽  
High Surface ◽  
High Surface Area ◽  
Energy Storage And Conversion ◽  
Waste Biomass ◽  
Fabrication Technology ◽  
Significant Attention

Nanoporous biocarbons derived from waste biomass have created significant attention owing to their great potential for energy storage and conversion and water purification. However, the fabrication technology for these materials...

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