scholarly journals Solvent-Free Synthesis of c -Axis Oriented ZSM-5 Crystals with Enhanced Methanol to Gasoline Catalytic Activity

ChemCatChem ◽  
2016 ◽  
Vol 8 (21) ◽  
pp. 3305-3305 ◽  
Author(s):  
Ziyu Liu ◽  
Dan Wu ◽  
Shu Ren ◽  
Xinqing Chen ◽  
Minghuang Qiu ◽  
...  
ChemCatChem ◽  
2016 ◽  
Vol 8 (21) ◽  
pp. 3303-3303
Author(s):  
Ziyu Liu ◽  
Dan Wu ◽  
Shu Ren ◽  
Xinqing Chen ◽  
Minghuang Qiu ◽  
...  

ChemCatChem ◽  
2016 ◽  
Vol 8 (21) ◽  
pp. 3317-3322 ◽  
Author(s):  
Ziyu Liu ◽  
Dan Wu ◽  
Shu Ren ◽  
Xinqing Chen ◽  
Minghuang Qiu ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (19) ◽  
pp. 15816-15820 ◽  
Author(s):  
Ziyu Liu ◽  
Dan Wu ◽  
Shu Ren ◽  
Xinqing Chen ◽  
Minghuang Qiu ◽  
...  

A hierarchical ZSM-5 zeolite with high crystallinity, high surface area, adjustable Si/Al ratio and suitable acidic properties was synthesized by a one-pot solvent-free method.


2019 ◽  
Vol 62 (3) ◽  
Author(s):  
Priya Ramasamy Shunmuga ◽  
Uma maheswari Govindhasamay ◽  
Deepa Manicam ◽  
Karthikeyan Parasuraman

Abstract. A novel large band gap 1-glycyl-3-methyl imidazolium chloride-iron (III) complex [[Gmim]Cl-Fe(III)] was found to be a heterogeneous catalyst for an efficient and solvent free synthesis of 3,4-dihydropyrimidin-2(1H)-ones by condensation of substituted aldehydes, ethyl acetoacetate and urea (or) thiourea with tremendous yields in high turnover number (4.1X102 to 18.8X102)  at ambient temperature using ultrasound irradiation as the activation mode of reaction. This operation formulates very interesting, ecological perspective due to simple reaction condition, isolation and purification of products. In addition, this methodology offers a competitive recyclability of the catalyst without a significant loss of its catalytic activity and could be readily reused, thus making this protocol more environmentally acceptable whilst no catalyst leaching was observed. Resumen. Se descubrió que un complejo novedoso de banda ancha 1-glicil-3-metilimidazolio cloruro de hierro (III) [[Gmim] Cl-Fe (III)] es un catalizador heterogéneo para una síntesis eficiente y libre de solventes de 3,4- dihidropirimidin-2 (1H) -ones por condensación de aldehídos sustituidos, acetoacetato de etilo y tiourea urea (o) con tremendos rendimientos en alto número de recambio (4.1X102 a 18.8X102) a temperatura ambiente mediante irradiación con ultrasonido como modo de activación de reacción. Esta operación formula una perspectiva ecológica muy interesante debido a la condición de reacción simple, el aislamiento y la purificación de los productos. Además, esta metodología ofrece una reciclabilidad competitiva del catalizador sin una pérdida significativa de su actividad catalítica y podría reutilizarse fácilmente, lo que hace que este protocolo sea más aceptable para el medio ambiente sin que se observe lixiviación del catalizador. 


RSC Advances ◽  
2017 ◽  
Vol 7 (6) ◽  
pp. 3611-3616 ◽  
Author(s):  
G. B. Dharma Rao ◽  
S. Nagakalyan ◽  
G. K. Prasad

Mesoporous vanadium ion doped titania nanoparticles were used as reusable catalyst for the synthesis of PHQ derivatives via Hantzsch reaction at 80 °C under greener conditions. The catalyst could easily be recycled and reused without decrease in catalytic activity.


2011 ◽  
Vol 4 (2) ◽  
pp. 496-500 ◽  
Author(s):  
R. Amutha ◽  
M. Muruganandham ◽  
G. J. Lee ◽  
V. N. Batalova ◽  
G. Mokrousov ◽  
...  

2019 ◽  
Vol 233 ◽  
pp. 79-88 ◽  
Author(s):  
R. Jothi Ramalingam ◽  
Jimmy Nelson Appaturi ◽  
Thiruchelvi Pulingam ◽  
Noora Ibrahim S ◽  
Hamad A. Al-Lohedan

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