One-step synthesis of chitosan-magnetite composite microparticles by evaporation-induced assembly and subsequent silver loading for catalytic application

2020 ◽  
Author(s):  
D. Sarkar ◽  
C. L. Prajapat ◽  
R. Joshi ◽  
R. S. Ningthoujam ◽  
D. Harish ◽  
...  
Keyword(s):  
Catalytic Application ◽  
One Step

scholarly journals Mesoporous SiO2-Supported Pt Nanoparticles for Catalytic Application

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Yingze Cao ◽  
Wentao Zhai ◽  
Xiang Zhang ◽  
Shuxi Li ◽  
Lin Feng ◽  
...  
Keyword(s):  
Pt Nanoparticles ◽  
Load Ratio ◽  
Catalytic Performance ◽  
One Pot ◽  
Oxide Supports ◽  
Catalytic Application ◽  
Reduce Agent ◽  
One Step ◽  
Mesoporous Sio2

SiO2 nanoparticles have been synthesized by combining Stober’s method and nonsurfactant process. The diameters and pore sizes can be controlled by altering the template and its concentration. Mesoporous SiO2 obtained this way has extremely large surface area compared with most oxide supports, which benefits the catalytic performance. Pt nanoparticles were in situ grown on and in mesoporous SiO2 nanoparticles with low amount of the metal and high load ratio. Furthermore, we firstly developed a novel route, called “one-pot” method, to prepare Pt/SiO2 catalyst where mesoporous silica preparing and Pt loading occurred in one step. This method is more efficient in saving reagent, since it can prevent Pt loss. In the meantime, it enables the template to reduce agent. The catalytic activity of Pt/SiO2 samples was measured by CO oxidation. It is indicated that the supporting silica with mesopores is more active than silica with micropores.

Poly(2-aminothiazole) as a unique precursor for nitrogen and sulfur co-doped porous carbon: immobilization of very small gold nanoparticles and its catalytic application

RSC Advances ◽  
2015 ◽  
Vol 5 (78) ◽  
pp. 63421-63428 ◽  
Author(s):  
Yasamin Bide ◽  
Mohammad Reza Nabid ◽  
Fateme Dastar
Keyword(s):  
Gold Nanoparticles ◽  
Porous Carbon ◽  
Carbon Materials ◽  
Plate Structure ◽  
Porous Carbon Materials ◽  
Catalytic Application ◽  
One Step ◽  
The One ◽  
Co Doped

We report the synthesis of poly(2-aminothiaozle) with a plate structure containing nanoparticles, and the one-step synthesis of nitrogen and sulfur co-doped porous carbon materials using P2AT as the source of both N and S.

One-step synthesis of palladium/SBA-15 nanocomposites and its catalytic application

2007 ◽  
Vol 272 (1-2) ◽  
pp. 136-141 ◽  
Author(s):  
Peng Han ◽  
Xiaomei Wang ◽  
Xuepeng Qiu ◽  
Xiangling Ji ◽  
Lianxun Gao
Keyword(s):  
Catalytic Application ◽  
One Step

Hybrid hydrogels containing one-step biosynthesized silver nanoparticles: Preparation, characterization and catalytic application

2019 ◽  
Vol 79 ◽  
pp. 326-337 ◽  
Author(s):  
Rafael F.N. Quadrado ◽  
Gustavo Gohlke ◽  
Robson S. Oliboni ◽  
Alessandra Smaniotto ◽  
André R. Fajardo
Keyword(s):  
Silver Nanoparticles ◽  
Catalytic Application ◽  
Hybrid Hydrogels ◽  
One Step

Green, Multi-Gram One-Step Synthesis of Core-Shell Nanocomposites in Water and Their Catalytic Application to Chemoselective Hydrogenations

2016 ◽  
Vol 22 (50) ◽  
pp. 17962-17966 ◽  
Author(s):  
Teppei Urayama ◽  
Takato Mitsudome ◽  
Zen Maeno ◽  
Tomoo Mizugaki ◽  
Koichiro Jitsukawa ◽  
...  
Keyword(s):  
Core Shell ◽  
Catalytic Application ◽  
One Step

An Interactive Minicomputer Program for the Indexing and Simulation of Electron Diffraction Patterns

1976 ◽  
Vol 34 ◽  
pp. 542-543
Author(s):  
R.P. Goehner ◽  
W.T. Hatfield ◽  
Prakash Rao
Keyword(s):  
Electron Diffraction ◽  
Real Time ◽  
Pattern Analysis ◽  
Flow Diagram ◽  
Hard Copy ◽  
Time Analysis ◽  
Real Time Analysis ◽  
Transmission Electron ◽  
One Step ◽  
Diffraction Patterns

Computer programs are now available in various laboratories for the indexing and simulation of transmission electron diffraction patterns. Although these programs address themselves to the solution of various aspects of the indexing and simulation process, the ultimate goal is to perform real time diffraction pattern analysis directly off of the imaging screen of the transmission electron microscope. The program to be described in this paper represents one step prior to real time analysis. It involves the combination of two programs, described in an earlier paper(l), into a single program for use on an interactive basis with a minicomputer. In our case, the minicomputer is an INTERDATA 70 equipped with a Tektronix 4010-1 graphical display terminal and hard copy unit.A simplified flow diagram of the combined program, written in Fortran IV, is shown in Figure 1. It consists of two programs INDEX and TEDP which index and simulate electron diffraction patterns respectively. The user has the option of choosing either the indexing or simulating aspects of the combined program.

Nutrient-regulated gene expression in eukaryotes

2006 ◽  
Vol 73 ◽  
pp. 85-96 ◽  
Author(s):  
Richard J. Reece ◽  
Laila Beynon ◽  
Stacey Holden ◽  
Amanda D. Hughes ◽  
Karine Rébora ◽  
...  
Keyword(s):  
Gene Expression ◽  
Rna Polymerase ◽  
Rna Polymerase Ii ◽  
Transcriptional Control ◽  
Direct Interaction ◽  
Signalling Pathways ◽  
A Cell ◽  
One Step ◽  
Higher Eukaryotes ◽  
Regulated Gene Expression

The recognition of changes in environmental conditions, and the ability to adapt to these changes, is essential for the viability of cells. There are numerous well characterized systems by which the presence or absence of an individual metabolite may be recognized by a cell. However, the recognition of a metabolite is just one step in a process that often results in changes in the expression of whole sets of genes required to respond to that metabolite. In higher eukaryotes, the signalling pathway between metabolite recognition and transcriptional control can be complex. Recent evidence from the relatively simple eukaryote yeast suggests that complex signalling pathways may be circumvented through the direct interaction between individual metabolites and regulators of RNA polymerase II-mediated transcription. Biochemical and structural analyses are beginning to unravel these elegant genetic control elements.

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