Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Attera Worayingyong"'
Autor:
Praewpilin Kangvansura, Ly May Chew, Chanapa Kongmark, Phatchada Santawaja, Holger Ruland, Wei Xia, Hans Schulz, Attera Worayingyong, Martin Muhler
Publikováno v:
Engineering, Vol 3, Iss 3, Pp 385-392 (2017)
Nitrogen-doped carbon nanotubes (NCNTs) were used as a support for iron (Fe) nanoparticles applied in carbon dioxide (CO2) hydrogenation at 633 K and 25 bar (1 bar = 105 Pa). The Fe/NCNT catalyst promoted with both potassium (K) and manganese (Mn) sh
Externí odkaz:
https://doaj.org/article/a1931198ba3146098046b84e53e4988f
Autor:
Chanapa Kongmark, Wantana Klysubun, Chabaiporn Junin, Bralee Chayasombat, Chanchana Thanachayanont, Visittapong Yordsri, Attera Worayingyong
Publikováno v:
Solid State Phenomena. 302:9-17
To handle persistent toxic organic contaminants in water, advanced oxidation process (AOP) by titanium dioxide (TiO2) and its composites has been extensively utilized. A smart combination of composite materials was synthesized to improve photocatalyt
Autor:
Sutasinee Kityakarn, Attera Worayingyong, Michael Wörner, Supapan Seraphin, Michael F. Smith, Anwaraporn Niltharach, Yingyot Poo-arporn
Publikováno v:
Materials Science in Semiconductor Processing. 93:21-27
Samples of TiO2 and TiO2 doped with 2% and 8% cerium ions were prepared by a sol-gel method and used as photocatalysts for the oxidation of vaporized thiophene. X-ray diffraction patterns showed a mixed phase of anatase and rutile for TiO2, while 2%C
Autor:
Chanapa Kongmark, Praewpilin Kangvansura, Phatchada Santawaja, Holger Ruland, Wei Xia, Martin Muhler, Ly May Chew, Hans Schulz, Attera Worayingyong
Publikováno v:
Engineering, Vol 3, Iss 3, Pp 385-392 (2017)
Nitrogen-doped carbon nanotubes (NCNTs) were used as a support for iron (Fe) nanoparticles applied in carbon dioxide (CO 2 ) hydrogenation at 633 K and 25 bar (1 bar = 10 5 Pa). The Fe/NCNT catalyst promoted with both potassium (K) and manganese (Mn)
Autor:
Chanapa Kongmark, Attera Worayingyong, Teera Butburee, Kajornsak Faungnawakij, Sanchai Kuboon, Pongtanawat Khemthong, Nopparuj Kochaputi
Publikováno v:
Catalysts
Volume 9
Issue 9
Catalysts, Vol 9, Iss 9, p 715 (2019)
Volume 9
Issue 9
Catalysts, Vol 9, Iss 9, p 715 (2019)
Catalytic behaviors of copper phosphide supported on various oxides (SiO2, &gamma
Al2O3, and USY zeolite) have been evaluated for deoxygenation of oleic acid and compared with nickel and cobalt phosphides. All catalysts were prepared by the hydr
Al2O3, and USY zeolite) have been evaluated for deoxygenation of oleic acid and compared with nickel and cobalt phosphides. All catalysts were prepared by the hydr
Autor:
Yingyot Poo-arporn, Phatchada Santawaja, Praewpilin Kangvansura, Ly May Chew, Martin Muhler, Worasarit Saengsui, Hans Schulz, Attera Worayingyong
Publikováno v:
Catalysis Today. 275:59-65
An iron based catalyst supported on an N -functionalized carbon nanotube (NCNT) was promoted with potassium and manganese as follows: Fe/NCNT, K/Fe/NCNT, Mn/Fe/NCNT, and K/Mn/Fe/NCNT for CO 2 hydrogenation. Time-resolved reduction X-ray absorption ne
Autor:
Anwaraporn Suramitr, Yingyot Poo-arporn, Pinsuda Viravathana, Attera Worayingyong, Hans Schulz, Praewpilin Kangvansura
Publikováno v:
Materials Science and Engineering: B. 190:82-89
Co/SiO2 catalysts were promoted with 4% and 8% ZrO2. Small amounts (0.07%) of Ru were impregnated onto 4%ZrO2/Co/SiO2. Catalysts resulting from time-resolved XANES reduction showed mixed phases of Co and CoO, with the highest percentages of Co result
Autor:
Hendrik J. Schulte, Holger Ruland, Martin Muhler, Gunther Eggeler, Praewpilin Kangvansura, Attera Worayingyong, Christoph Somsen, Ly May Chew, Wei Xia
Publikováno v:
Applied Catalysis A: General. 482:163-170
CO2 hydrogenation to short-chain hydrocarbons was investigated over iron catalysts supported on oxygen- and nitrogen-functionalized multi-walled carbon nanotubes (CNTs) and on silica, which were synthesized by the dry impregnation method using ammoni
Publikováno v:
Applied Physics A. 117:1191-1201
Electrospun $$\hbox {TiO}_2$$ and Ce-doped $$\hbox {TiO}_2$$ nanofibers were prepared with 0.5, 2.0 and 8.0 % weight Ce. The structural properties and phase composition were characterized using high-resolution transmission electron microscopy (HR-TEM
Publikováno v:
Materials Chemistry and Physics. 139:543-549
The crystal and electronic structural changes undergone by TiO2 nanoparticles when Ce is introduced were studied using X-ray diffraction (XRD) and X-ray absorption near-edge spectroscopy (XANES). A small amount of Ce (less than 1% molar concentration