نتایج جستجو برای: heterogeneous nanocatalyst

تعداد نتایج: 126495  

2017
Hua Zhang Chen Wang Han-Lei Sun Gang Fu Shu Chen Yue-Jiao Zhang Bing-Hui Chen Jason R. Anema Zhi-Lin Yang Jian-Feng Li Zhong-Qun Tian

Surface molecular information acquired in situ from a catalytic process can greatly promote the rational design of highly efficient catalysts by revealing structure-activity relationships and reaction mechanisms. Raman spectroscopy can provide this rich structural information, but normal Raman is not sensitive enough to detect trace active species adsorbed on the surface of catalysts. Here we d...

2013
ANTENEH TEFERA MOGUS MOCHENA Anteneh Tefera

Submitted for the MAR14 Meeting of The American Physical Society Chirally Selective Growth of Single Walled Carbon Nanotube on Fe13 Nanocatalyst 1 ANTENEH TEFERA, MOGUS MOCHENA, Florida A&M University — Controlled growth of single walled carbon nanotubes with desired chiral indices remains the holy grail of single walled carbon nanotube synthesis. We performed ab initio molecular dynamics calcu...

2017
Zhuojun Li Jong Kyu Kim Vrushali Chaudhari Suseeladevi Mayadevi Luiza C. Campos

Metaldehyde, an organic pesticide widely used in the UK, has been detected in drinking water in the UK with a low concentration (<1 μg L-1) which is still above the European and UK standard requirements. This paper investigates the efficiency of four materials: powdered activated carbon (PAC) and carbon-doped titanium dioxide nanocatalyst with different concentrations of carbon (C-1.5, C-40, an...

2014
Ting Liao Ziqi Sun Chenghua Sun Shi Xue Dou Debra J. Searles

Inorganic nano-graphene hybrid materials that are strongly coupled via chemical bonding usually present superior electrochemical performance. However, how the chemical bond forms and the synergistic catalytic mechanism remain fundamental questions. In this study, the chemical bonding of the MoS2 nanolayer supported on vacancy mediated graphene and the hydrogen evolution reaction of this nanocat...

Journal: :Journal of Nanomaterials 2022

The food waste management has become a very important part in the modern world. In olden days, population was low, so that low produced easily disposed by dumping it under soil. However, nowadays, due to high population, amount of is which could not be dumped land pollution. To overcome this problem, must managed or utilized properly give zero waste. Therefore, work focused on production biogas...

Journal: :Journal of Hazardous Materials 2021

Mass transfer efficiency and catalytic reactivity are the two major hurdles for heterogeneous wet peroxide oxidation (CWPO) technologies. To address these issues, nanocomposite CuFeO 2 /Al O 3 was synthesized assessed as a novel catalyst enhanced adsorption of anionic pollutants (catechol reactive red 195 (RR195)) in waters. With positive charge on by introducing Al , promoted. The surface comp...

Journal: :journal of physical & theoretical chemistry 2010
s. a. khorrami s. a. sepehr s. manie g. mahmoudzadeh s. madani

the dried nitrate-urea gels exhibit the combination of autoicatatric combustion behavior and ultrasonic, whichcan be used to synthesize the nanocatalyst ferrite powders. cu and ni unites nanocatalyst powders sithcomposition of caned], and nife204 were synthesized by a sol-gel auto catalnic combustion process. themolar ratio between metal ions and urea was 11.2. the sob gel process was done at 8...

Journal: :Research on Chemical Intermediates 2022

In this paper, calcium iodate nanoparticles were first synthesized by the modified reaction of Ca(NO3)2 and KIO3 in an aqueous medium under ultrasonic irradiation. The structure nanocatalyst was then characterized FT-IR, FESEM, EDX, XRD, BET techniques. Afterward, fabricated Ca(IO3)2 applied as a facile synthesis heterocycles including quinoxalines, 5,6-dicyano pyrazines, pyrido[2,3-b]pyrazines...

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