High surface area tin oxide

2007 ◽  
Vol 317 (2) ◽  
pp. 139-148 ◽  
Author(s):  
Alfred Hagemeyer ◽  
Zach Hogan ◽  
Marco Schlichter ◽  
Birgit Smaka ◽  
Guido Streukens ◽  
...  
Keyword(s):  
Surface Area ◽  
Tin Oxide ◽  
High Surface ◽  
High Surface Area

scholarly journals Rational wiring of photosystem II to hierarchical indium tin oxide electrodes using redox polymers

2016 ◽  
Vol 9 (12) ◽  
pp. 3698-3709 ◽  
Author(s):  
Katarzyna P. Sokol ◽  
Dirk Mersch ◽  
Volker Hartmann ◽  
Jenny Z. Zhang ◽  
Marc M. Nowaczyk ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Surface Area ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
High Surface ◽  
High Surface Area ◽  
Rational Approach ◽  
Redox Polymers ◽  
Oxide Electrodes

A rational approach for a photosystem II-based electrode assembly is described, integrating redox polymers with high surface area hierarchically structured electrodes.

scholarly journals High Response CO Sensor Based on a Polyaniline/SnO2 Nanocomposite

Polymers ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 184 ◽  
Author(s):  
Kai-Syuan Jian ◽  
Chi-Jung Chang ◽  
Jerry Wu ◽  
Yu-Cheng Chang ◽  
Chien-Yie Tsay ◽  
...  
Keyword(s):  
Surface Area ◽  
Tin Oxide ◽  
Operating Temperature ◽  
Sno2 Nanoparticles ◽  
High Surface ◽  
Sol Gel ◽  
High Surface Area ◽  
Great Resistance ◽  
Co Sensor ◽  
Co Gas

A polyaniline (PANI)/tin oxide (SnO2) composite for a CO sensor was fabricated using a composite film composed of SnO2 nanoparticles and PANI deposition in the present study. Tin oxide nanoparticles were synthesized by the sol-gel method. The SnO2 nanoparticles provided a high surface area to significantly enhance the response to the change in CO concentration at low operating temperature (<75 °C). The excellent sensor response was mainly attributed to the relatively good properties of PANI in the redox reaction during sensing, which produced a great resistance difference between the air and CO gas at low operating temperature. Therefore, the combination of n-type SnO2 nanoparticles with a high surface area and a thick film of conductive PANI is an effective strategy to design a high-performance CO gas sensor.

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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