Results 31 to 40 of about 38,938 (267)

Glyptal Synthesis from Glycerol and Phthalic Anhydride Using Activated Zeolite as Heterogeneous Catalyst and Its Comparison to Homogeneous p-Toluenesulfonic Acid Catalyst

Jurnal Bahan Alam Terbarukan, 2017
The abundance of glycerol as the side product of biodiesel has motivated researches on glycerol utilization as a feedstock for more valuable products. This research presents the possibility of producing polyester (glyptal), which is a widely used coating
Budhijanto Budhijanto, Deddy Wirata, Kurniawan Kurniawan   +2 more
doaj   +1 more source

Ligand relay catalysis for cobalt-catalyzed sequential hydrosilylation and hydrohydrazidation of terminal alkynes

Nature Communications, 2022
In organic chemistry, performing sequential catalytic cycles with a single catalyst improves efficiency. Here the authors present a methodology to functionalize alkynes with nitrogen and silicon atoms, through two catalytic cycles with a homogeneous ...
Yufeng Sun, Jun Guo, Xuzhong Shen, Zhan Lu   +3 more
doaj   +1 more source

Performance of homogeneous catalysts viewed in dynamics

Chemical Communications, 2023
In this feature article, we discuss how the different aspects of the complex catalytic mechanisms manifest themselves in the commonly accepted performance metrics.
Wenjun Yang, Georgy A. Filonenko, Evgeny A. Pidko   +2 more
openaire   +4 more sources

Aging Is a Key Driver for Adult Acute Myeloid Leukemia

Aging and Cancer, EarlyView.
Acute myeloid leukemia (AML) is a classical age‐related hematologic malignancy, and a key driver of AML is aging, which profoundly regulates intrinsic factors such as genomic instability, epigenetic reprogramming, and metabolic dysregulation, and alters bone marrow microenvironment.
Rong Yin, Haojian Zhang
wiley   +1 more source

Solvothermal-Based Lignin Fractionation From Corn Stover: Process Optimization and Product Characteristics

Frontiers in Chemistry, 2021
Fractionation of lignocellulosic is a fundamental step in the production of value-added biobased products. This work proposes an initiative to efficiently extract lignin from the corn stover using a single-step solvothermal fractionation in the presence ...
Punjarat Khongchamnan, Wanwitoo Wanmolee, Navadol Laosiripojana, Navadol Laosiripojana, Verawat Champreda, Nopparat Suriyachai, Nopparat Suriyachai, Torpong Kreetachat, Torpong Kreetachat, Chainarong Sakulthaew, Chanat Chokejaroenrat, Saksit Imman, Saksit Imman   +12 more
doaj   +1 more source

Individuals with Multi‐Joint Osteoarthritis Demonstrate Larger Longitudinal Declines in Frailty: Data from the Canadian Longitudinal Study on Aging

Arthritis Care &Research, Accepted Article.
Objective Test the hypothesis that multi‐joint osteoarthritis would modify the relation between time and frailty progression, where more affected joints would lead to larger declines over 6‐years compared to those without osteoarthritis using data from the Canadian Longitudinal Study on Aging.
Carson Halliwell, Rebecca Moyer, Myles W. O'Brien   +2 more
wiley   +1 more source

Rhodium nanoparticles supported on silanol-rich zeolites beyond the homogeneous Wilkinson’s catalyst for hydroformylation of olefins

Nature Communications, 2023
Hydroformylation is one of the largest industrially homogeneous processes that strongly relies on catalysts with phosphine ligands such as the Wilkinson’s catalyst (triphenylphosphine coordinated Rh).
Yifeng Liu, Zhiqiang Liu, Yu Hui, Liang Wang, Jian Zhang, Xianfeng Yi, Wei Chen, Chengtao Wang, Hai Wang, Yucai Qin, Lijuan Song, Anmin Zheng, Feng-Shou Xiao   +12 more
doaj   +1 more source

Genetic Algorithms for the Discovery of Homogeneous Catalysts

CHIMIA, 2023
In this account, we discuss the use of genetic algorithms in the inverse design process of homogeneous catalysts for chemical transformations. We describe the main components of evolutionary experiments, specifically the nature of the fitness function to optimize, the library of molecular fragments from which potential catalysts are assembled, and the ...
Gallarati, Simone, Van Gerwen, Puck, Schoepfer, Alexandre A., Laplaza, Ruben, Corminboeuf, Clemence   +4 more
openaire   +3 more sources

Field Report from Collaborative Research Center 1625: Heterogeneous Research Data Management Using Ontology Representations

Advanced Engineering Materials, EarlyView.
A unified research data management framework for heterogeneous materials data is presented. The system integrates multimodal datasets using ontologies and knowledge graphs, enabling interoperability and FAIR (findable, accessible, interoperable, reusable) data principles. By linking data across scales and workflows, it supports reproducible, Artifitial
Doaa Mohamed, Samuel García Vázquez, Behnam Mardani, Victor Dudarev, Alfred Ludwig, Maribel Acosta, Markus Stricker   +6 more
wiley   +1 more source

Ethylene/Styrene Copolymerization by (Me₃SiC₅H₄)TiCl₂(O-2,6-ⁱPr₂-4-RC₆H₂) (R = H, SiEt₃)-MAO Catalysts: Effect of SiMe₃ Group on Cp for Efficient Styrene Incorporation

Molecules
The synthesis and structural analysis of (Me3SiC5H4)TiCl2(OAr) [OAr = O-2,6-iPr2-4-RC6H2; R = H, SiEt3] revealed that it exhibits higher catalytic activities than (tBuC5H4)TiCl2(OAr), Cp*TiCl2(OAr), with efficient comonomer incorporation in ethylene ...
Tiantian Huang, Taiga Fujioka, Daisuke Shimoyama, Kotohiro Nomura   +3 more
doaj   +1 more source