Zobrazeno 1 - 10
of 17 405
pro vyhledávání: '"lewis acid"'
Autor:
Wensheng Xu, Ruixue Tian, Chunlin Gao, Chenghao Wang, Yuxin Chen, Ruifen Wang, Jun Peng, Shengli An, Peizhong Li
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract The catalyst is based on CeO2 cannot be widely used in SCR reaction because of its poor NH3 adsorption performance. In this study, Cu-doped CeTi catalyst was designed. The results show that the CeTiCu0.3 has a wide active temperature window
Externí odkaz:
https://doaj.org/article/4eaed786688741d1b9f5498180158d31
Autor:
Tayssir Hamieh, Vladimir Yu Gus'kov
Publikováno v:
Chemistry, Vol 6, Iss 5, Pp 830-851 (2024)
The surface thermodynamic properties of polymers and copolymers modified by supramolecular structures are used in several industrial processes, such as selective adsorption, paints, coatings, colloids, and adhesion applications. Background: Inverse g
Externí odkaz:
https://doaj.org/article/fd56b391d7f648608744973e6c1e06a0
Publikováno v:
Organics, Vol 5, Iss 3, Pp 219-236 (2024)
In light of the small ring strain of five/six-membered cyclic ethers, constructing complex molecules via ring-opening reactions has consistently been a highly challenging topic in organic synthesis. Induced by Lewis acids, the charge redistribution i
Externí odkaz:
https://doaj.org/article/719ecfc40f534694942f180d1a466d6a
Autor:
Khadija El Idrissi, Mohamed Abdoul-Hakim, Na’il Saleh, Hocine Garmes, Asad Syed, Mar Ríos-Gutiérrez, Bilal Ahamad Paray, Meenakshi Verma, Abdellah Zeroual, Luis R. Domingo
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-17 (2024)
Abstract Within the context of Molecular Electronic Density Theory (MEDT), this study investigates the Diels–Alder reaction among isoprene (2) and R-carvone (1R) applying DFT simulations, with and without Lewis acid (LA) catalysis. The results show
Externí odkaz:
https://doaj.org/article/5bcaf7b0c14b47e0b5a659cbbd9448d8
Autor:
Yajie Bai, Zhenyuan Fang, Yong Lei, Lijing Liu, Huaiquan Zhao, Hongye Bai, Weiqiang Fan, Weidong Shi
Publikováno v:
Green Energy & Environment, Vol 9, Iss 7, Pp 1112-1121 (2024)
Photoelectrochemical NO3− reduction (PEC NITRR) not only provides a promising solution for promoting the global nitrogen cycle, but also converts NO3− to the important chemicals (NH3). However, it is still a great challenge to prepare catalysts w
Externí odkaz:
https://doaj.org/article/b73fe434b81844be80e6379982dcf152
Publikováno v:
Results in Chemistry, Vol 12, Iss , Pp 101902- (2024)
The Lewis acid mediated self-condensation of an epigallocatechin gallate derivative was examined. We found that AgOTf as a Lewis acid and diethylene glycol as a leaving group at C-4 position afforded a dimeric epigallocatechin gallate derivative in a
Externí odkaz:
https://doaj.org/article/806d6bdd1b1b4ecd85f9417baca607bd
Autor:
Labiqa Aman, Shehla Khalid, Nasir Rasool, Almeera Zia, Muhammad Imran, Marius Irimie, Codrut Ioan Ciurea
Publikováno v:
Arabian Journal of Chemistry, Vol 17, Iss 12, Pp 106027- (2024)
Organocatalysts have become a third main method of catalyzing chemical reactions aside from bio and metal catalysts. The potential for green chemistry and some striking benefits, including stability, low cost, easy availability, excellent enantiosele
Externí odkaz:
https://doaj.org/article/9d3e19a727cd45479838420902e92e38
Publikováno v:
SmartMat, Vol 5, Iss 5, Pp n/a-n/a (2024)
Abstract The integration of radials into covalent organic frameworks (COFs) would have a profound effect on their applications in spin devices since such radical arrays can offer scientists an additional dimension to manipulate electron spins and max
Externí odkaz:
https://doaj.org/article/7597c1a60f014d4f918d4047b941c0d4
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 20, Iss 1, Pp 1376-1395 (2024)
The Cannizzaro reaction has emerged as a versatile synthetic tool for the construction of functionalized molecules. Dating back to the 19th century, this reaction, though initially used for the synthesis of an alcohol and acid functionality from alde
Externí odkaz:
https://doaj.org/article/3721c93cfea242c3994211b01268eb9d
Autor:
Yajiao Cui, Zhi Yang, Xiongtao Hu, Shufei Yang, Armin Rezayan, Tianliang Lu, Zhiyong Chen, Yongsheng Zhang
Publikováno v:
Resources Chemicals and Materials, Vol 3, Iss 2, Pp 159-165 (2024)
Isomerization of glucose to fructose is a fundamental and key intermediate process commonly included in the production of valuable chemicals from carbohydrates in biorefinery. Enhancement of fructose yield is a challenge. In this work, Sn-doped silic
Externí odkaz:
https://doaj.org/article/3d53a0d843eb4353bd697f53cf340547