Effect of Ions Substitution on Nanospace La-Fe-O Catalytic Properties for Simultaneous Removal of NOx and Soot

2013 ◽  
Vol 740 ◽  
pp. 565-569
Author(s):  
Xiao Xiao Meng ◽  
Mao Xiang Jing ◽  
Feng Lin He ◽  
Xiang Qian Shen
Keyword(s):  
High Performance ◽  
Catalytic Properties ◽  
Catalytic Performance ◽  
Dip Coating ◽  
Exhaust Emission ◽  
Simultaneous Removal ◽  
Microstructural Characteristics ◽  
Coating Method ◽  
Citrate Gel Process ◽  
Dip Coating Method

The catalysts La0.8K0.2FeO3(LKFO), La0.8K0.2Fe0.7Mn0.3O3(LKFMO) and La0.8K0.2Fe0.67Mn0.3Pt0.03O3(LKFMPO) were prepared by the citrate-gel process and the catalyst-coated honeycomb ceramic devices were prepared by the citrate-gel assisted dip-coating method. All the catalysts have a high performance on the simultaneous removal of NOxand soot at a temperature range of 200 to 400°C under the practical diesel exhaust emission. The obvious catalytic improvement is largely due to the effects of ions substitution, pore structure and microstructural characteristics of the catalysts. The catalytic performance order is LKFMPO > LKFMO > LKFO. Among them the LKFMPO catalyst shows the best catalytic properties, especially in the removal of NOx, with a maximum conversion rate of NOx(21.2%).

In situ formation of highly active Ni–Fe based oxygen-evolving electrocatalysts via simple reactive dip-coating

2017 ◽  
Vol 5 (22) ◽  
pp. 11009-11015 ◽  
Author(s):  
Guofa Dong ◽  
Ming Fang ◽  
Jianshuo Zhang ◽  
Renjie Wei ◽  
Lei Shu ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
State Of The Art ◽  
Catalytic Performance ◽  
Dip Coating ◽  
Highly Active ◽  
Coating Method ◽  
In Situ Formation ◽  
Dip Coating Method ◽  
Oxygen Evolving

An extremely simple in situ reactive dip-coating method is developed to prepare Ni–Fe based electrocatalysts with good catalytic performance on oxygen evolution comparable to those of state-of-the art precious catalysts.

Preparation and application of flat-plate ceramic ultrafiltration membrane with high-performance by spray-dip coating method

2021 ◽  
Vol 225 ◽  
pp. 11-17
Author(s):  
Yahui Zhao ◽  
Yulong Yang ◽  
Qibing Chang ◽  
Zhiwen Hu ◽  
Xiaozhen Zhang
Keyword(s):  
Flat Plate ◽  
High Performance ◽  
Dip Coating ◽  
Ultrafiltration Membrane ◽  
Coating Method ◽  
Dip Coating Method

Optimal Preparation Process of the Pt/TiO2 Photo-Catalytic Composite Separation Membrane

2013 ◽  
Vol 295-298 ◽  
pp. 370-373 ◽  
Author(s):  
Qin Liang Tan ◽  
Yong Mei Wei ◽  
Min Nan Wang ◽  
Yuan Liu
Keyword(s):  
Heavy Metal ◽  
Catalytic Properties ◽  
Sol Gel ◽  
Dip Coating ◽  
Film Structure ◽  
Preparation Process ◽  
Preparation Conditions ◽  
Separation Membrane ◽  
Coating Method ◽  
Dip Coating Method

In this study, Nano-TiO2films are incorporated with heavy metal Pt by the Sol-Gel Dip-Coating (SGDC) method to change their photo-catalytic properties. The Pt and Pt/TiO2sol is prepared first, then it was used for coating on the ITO by the Dip-Coating method; finally, through calcination under the high temperature, the desired Pt and Pt/TiO2film can be obtained. The film structure was tested by the photoelectric test, XRD and AFM. Results showed that the best preparation conditions is identified as 10ml of Tetrabutyltitanate, 20ml of Anhydrous ethanol and 3ml of Tri-ethanolamine, with a 450°C of calcination temperature lasting for 3h; 3 layers of coating is also suggested with the Pt content being 0.30mol %.

High-performance zeolite T membrane for dehydration of organics by a new varying temperature hot-dip coating method

AIChE Journal ◽  
2012 ◽  
Vol 59 (3) ◽  
pp. 936-947 ◽  
Author(s):  
Xiaoxia Chen ◽  
Jinqu Wang ◽  
Dehong Yin ◽  
Jianhua Yang ◽  
Jinming Lu ◽  
...  
Keyword(s):  
High Performance ◽  
Dip Coating ◽  
Coating Method ◽  
Dip Coating Method

scholarly journals Dip-coating decoration of Ag2O nanoparticles on SnO2 nanowires for high-performance H2S gas sensors

RSC Advances ◽  
2020 ◽  
Vol 10 (30) ◽  
pp. 17713-17723
Author(s):  
Tran Thi Ngoc Hoa ◽  
Nguyen Van Duy ◽  
Chu Manh Hung ◽  
Nguyen Van Hieu ◽  
Ho Huu Hau ◽  
...  
Keyword(s):  
Gas Sensors ◽  
High Performance ◽  
Dip Coating ◽  
Sno2 Nanowires ◽  
Coating Method ◽  
On Chip ◽  
Dip Coating Method ◽  
Ag2o Nanoparticles ◽  
Sensing Performance

Ag2O nanoparticles decorated on the surface of on-chip growth SnO2 nanowires by a dip-coating method possessed excellent sensing performance for H2S gas.

Dip-coated colloidal quantum-dot films for high-performance broadband photodetectors

2019 ◽  
Vol 7 (21) ◽  
pp. 6266-6272 ◽  
Author(s):  
Ting Shen ◽  
Jifeng Yuan ◽  
Xinhua Zhong ◽  
Jianjun Tian
Keyword(s):  
Quantum Dot ◽  
High Performance ◽  
Dip Coating ◽  
Large Area ◽  
Coating Method ◽  
Colloidal Quantum Dot ◽  
Dip Coating Method

Homogeneous large-area QD films were obtained by a dip-coating method. Photodetectors assembled with these films possess excellent detectivity.

Precise Patterning of Single Crystal Arrays of Organic Semiconductors by Patterned Microchannel Dip-coating Method for Organic Field-Effect Transistors

2021 ◽  
Author(s):  
Chaoqiang Wang ◽  
Zhengjun Lu ◽  
Wei Deng ◽  
Wanqin Zhao ◽  
Bei Lu ◽  
...  
Keyword(s):  
Single Crystals ◽  
Organic Semiconductors ◽  
Organic Semiconductor ◽  
Field Effect ◽  
High Performance ◽  
Field Effect Transistors ◽  
Dip Coating ◽  
Organic Field Effect Transistors ◽  
Coating Method ◽  
Dip Coating Method

Control over the growth location and orientation of organic semiconductor single crystals (OSSCs) is of key importance to enable high-performance organic circuits. However, the previous approaches are difficult to create...

scholarly journals Silver Nanoparticle-Coated Polyhydroxyalkanoate Based Electrospun Fibers for Wound Dressing Applications

Materials ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 4907
Author(s):  
Ozlem Ipek Kalaoglu-Altan ◽  
Havva Baskan ◽  
Timo Meireman ◽  
Pooja Basnett ◽  
Bahareh Azimi ◽  
...  
Keyword(s):  
Wound Dressing ◽  
High Performance ◽  
High Surface ◽  
High Surface Area ◽  
Human Keratinocytes ◽  
Dip Coating ◽  
Wound Dressings ◽  
Coating Method ◽  
Dip Coating Method

Wound dressings are high performance and high value products which can improve the regeneration of damaged skin. In these products, bioresorption and biocompatibility play a key role. The aim of this study is to provide progress in this area via nanofabrication and antimicrobial natural materials. Polyhydroxyalkanoates (PHAs) are a bio-based family of polymers that possess high biocompatibility and skin regenerative properties. In this study, a blend of poly(3-hydroxybutyrate) (P(3HB)) and poly(3-hydroxyoctanoate-co-3-hydroxy decanoate) (P(3HO-co-3HD)) was electrospun into P(3HB))/P(3HO-co-3HD) nanofibers to obtain materials with a high surface area and good handling performance. The nanofibers were then modified with silver nanoparticles (AgNPs) via the dip-coating method. The silver-containing nanofiber meshes showed good cytocompatibility and interesting immunomodulatory properties in vitro, together with the capability of stimulating the human beta defensin 2 and cytokeratin expression in human keratinocytes (HaCaT cells), which makes them promising materials for wound dressing applications.

Porous Gel Coatings Obtained by Phase Separation in ORMOSIL System

2000 ◽  
Vol 628 ◽  
Author(s):  
Kazuki Nakanishi ◽  
Souichi Kumon ◽  
Kazuyuki Hirao ◽  
Hiroshi Jinnai
Keyword(s):  
Phase Separation ◽  
Reaction Time ◽  
Volume Fraction ◽  
Sol Gel ◽  
Reaction Times ◽  
Dip Coating ◽  
Coating Solution ◽  
Coating Method ◽  
Gel Phase ◽  
Dip Coating Method

ABSTRACTMacroporous silicate thick films were prepared by a sol-gel dip-coating method accompanied by the phase separation using methyl-trimethoxysilane (MTMS), nitric acid and dimethylformamide (DMF) as starting components. The morphology of the film varied to a large extent depending on the time elapsed after the hydrolysis until the dipping of the coating solution. On a glass substrate, the films prepared by early dipping had inhomogeneous submicrometer-sized pores on the surface of the film. At increased reaction times, relatively narrow sized isolated macropores were observed and their size gradually decreased with the increase of reaction time. On a polyester substrate, in contrast, micrometer-sized isolated spherical gel domains were homogeneously deposited by earlier dippings. With an increase of reaction time, the volume fraction of the gel phase increased, then the morphology of the coating transformed into co-continuous gel domains and macropores, and finally inverted into the continuous gel domains with isolated macropores. The overall morphological variation with the reaction time was explained in terms of the phase separation and the structure freezing by the forced gelation, both of which were induced by the evaporation of methanol during the dipping operation.

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