Results 61 to 70 of about 183,819 (280)

MIL‐100(Fe) Supported Pt−Co Nanoparticles as Active and Selective Heterogeneous Catalysts for Hydrogenation of 1,3‐Butadiene

ChemistryOpen, 2022
Superior catalytic performance for selective 1,3‐butadiene (1,3‐BD) hydrogenation can usually be achieved with supported bimetallic catalysts. In this work, Pt−Co nanoparticles and Pt nanoparticles supported on metal–organic framework MIL‐100(Fe ...
Prof. Lili Liu, Zhixuan Han, Yifan Lv, Prof. Chunling Xin, Prof. Xiaojing Zhou, Dr. Lei Yu, Prof. Xishi Tai   +6 more
doaj   +1 more source

Recent advancements and perspectives of the CO2 hydrogenation reaction

Green Carbon, 2023
Owing to excessive carbon dioxide (CO2) emissions, which cause severe environmental issues, the conversion and utilization of CO2 have received increasing attention.
Wenhang Wang, Chunyang Zeng, Noritatsu Tsubaki   +2 more
doaj   +1 more source

Glycolaldehyde formation via the dimerization of the formyl radical [PDF]

, 2013
Glycolaldehyde, the simplest monosaccharide sugar, has recently been detected in low- and high-mass star-forming cores. Following our previous investigation into glycolaldehyde formation, we now consider a further mechanism for the formation of ...
Baulch, Beltrán, Ben Slater, Cernicharo, Daren J. Burke, Garrod, Gibb, Gillan, Grimme, Hollis, Jørgensen, Mehringer, Millar, Osorio, Pan, Paul M. Woods, Rawlings, Reilly, Rick, Sarkisov, Serena Viti, Stoeckel, Tielens, VandeVondele, Watanabe, Wendy A. Brown, Whittet, Woods, Woon, Yee Quee, Zamaan Raza   +30 more
core   +2 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Study of Solvent and Catalyst in Diimide Biphasic Hydrogenation System of Natural Rubber

International Journal of Technology
In Indonesia, solid rubber is the most common form of natural rubber (NR) intermediates because it is easy to store and transport. However, hydrogenation, a process aimed at improving the quality of NR by addressing its vulnerability to environmental ...
Dody Andi Winarto, Chandra Liza, Mohamad Irfan Fathurrohman, Abdulhakim Masa, Mochamad Chalid   +4 more
doaj   +1 more source

Selective Hydrogenation of 1-Hexyne Using Pd-Cu and Pd-W Supported on Alumina Catalysts

Chemical Engineering Transactions, 2013
Vinyl acetylene and 1-butyne are by products in mixed C4 separation processes and they must be eliminated due to their high flammability. However, C4 acetylene can be upgraded to higher value hydrocarbons such as 1,3-butadiene and 1-butene by using ...
P. Insorn, K. Suriyaphaparkorn, B. Kitiyanan   +2 more
doaj   +1 more source

Metal oxides and their roles in heterogeneous catalysis: special emphasis on synthesis protocols, intrinsic properties, and their influence in transfer hydrogenation reactions

SN Applied Sciences, 2023
This review emphasizes La-based metal oxides of the perovskite form and their application in heterogeneous catalytic transfer hydrogenation (CTH) reactions from year 2013. Perovskites are potential alternatives to noble metals. The possibility of induced-
Tafadzwa Precious Mabate, Nomathamsanqa Prudence Maqunga, Sinemihlali Ntshibongo, Mulisa Maumela, Ndzondelelo Bingwa   +4 more
doaj   +1 more source

Evaluation of Nitrobenzene Hydrogenation Kinetic Particularities over Mono and Bimetallic Ni Containing Hypercrosslinked Polystyrene

Chemical Engineering Transactions, 2021
Nitrobenzene hydrogenation is a widely used process applied for aniline production. Nitrobenzene hydrogenation kinetics greatly depends on catalyst properties and structure therefore, its study can shed light on process particularities and catalyst ...
Roman Brovko, Lev Mushinsky, Adel Latypova, Mikhail Sulman, Valentina Matveeva, Valentin Doluda   +5 more
doaj   +1 more source

First-principles modeling of the polycyclic aromatic hydrocarbons reduction

, 2011
Density functional theory modelling of the reduction of realistic nanographene molecules (C42H18, C48H18 and C60H24) by molecular hydrogen evidences for the presence of limits in the hydrogenation process.
Ao Z. M., Ao Z. M., Ataca C., Ataca C., Boukhvalov D. W, Boukhvalov D. W., Boukhvalov D. W., Cai J., Casiraghi C., Chernozatonskii L. A., Chernozatonskii L. A., Chernozatonskii L. A., Cordero N. A., D. W. Boukhvalov, Elias D. C., K. Müllen, Kosimov D. P., Laursen B. W., Leenaerts O., Leenaerts O., Leenaerts O., Leenaerts O., Lin Y., Luo Z., Monkhorst H. J., Neubeck S., Perdew J. P., Perdew J. P., Ribeiro R. M., Riger R., Rouhanipour A., Räder H. J., Shahab Naghavi S., Sheka E. F., Sheka E. F., Singh A. K., Sofo J. O., Soler J. M., Watson M. D., Wehling T. O., Wehling T. O., Widenkvist E., Wu J., X. Feng, Xiang H., Xu Y. N., Yang S. B., Yang X. Y., Zanella I.   +48 more
core   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source