Results 31 to 40 of about 190,133 (313)

Synthesis of poly(itaconic acid) and its application for synthesis of pyrrolinones as a reusable homogeneous catalyst [PDF]

Journal of the Serbian Chemical Society
In this context, poly(itaconic acid) (PIA) was synthesized through the polymerization of itaconic acid in the presence of K2S2O8 and NaH2PO4, achieving satisfactory yields of 80 % within 48 h at 55°C.
Mohamadabad Parya Hamdi, Setamdideh Davood, Ghanbary Fatemeh   +2 more
doaj   +1 more source

Study of Hydrolysis Process from Pineapple Leaf Fibers using Sulfuric Acid, Nitric Acid, and Bentonite Catalysts

Bulletin of Chemical Reaction Engineering & Catalysis, 2021
The hydrolysis process of pineapple leaf fibers has been carried out using sulfuric acid, nitric acid, bentonite catalyst, and activated bentonite catalyst.
Bayu Wiyantoko, Rika Rusitasari, Rahma Novia Putri   +2 more
doaj   +1 more source

Macrocyclic cyanocobalamin (vitamin B12) as a homogeneous electrocatalyst for water oxidation under neutral conditions

, 2020
Highly water-soluble cyanocobalamin (also known as vitamin B-12) is the most structurally macrocyclic complex comprising cobalt in the center of a corrin ring.
Ahmad, Nazir, Shahadat, Hossain M, Verpoort, Francis, Younus, Hussein A, Zhang, Shiguo, Zhuiykov, Serge   +5 more
core   +1 more source

Metal-organic frameworks as selective or chiral oxidation catalysts [PDF]

, 2014
Since the discovery of Metal Organic Frameworks (MOFs) in the early 1990s, the amount of new structures has grown exponentially. A MOF typically consists of inorganic nodes that are connected by organic linkers to form crystalline, highly porous ...
Leus, Karen, Liu, Ying-Ya, Van Der Voort, Pascal   +2 more
core   +1 more source

Effect of catalytic conditions on the synthesis of new aconitate esters [PDF]

, 2011
Sugar cane is a crop which generates large amounts of biomass and a juice rich in highvalue natural molecules. After extracting sugar from the juice, the recovering of various compounds such as organic acids contained in molasses could contribute to ...
Hoareau, William, Lacaze-Dufaure, Corinne, Piang-Siong, William, Satgé-De Caro, Pascale, Shum Cheong Sing, Alain   +4 more
core   +3 more sources

A one-step Cu/ZnO Quasi-Homogeneous Catalyst for DME Production from Syn-gas [PDF]

, 2016
Colloidal Cu/ZnO nanoparticles combine with γ-Al2O3 to form promising hybrid catalysts for the direct synthesis of dimethyl ether (DME) in liquid phase, showing high activity, selectivity and stability.
Garcia Trenco, A, Shaffer, M, White, E, Williams, CK   +3 more
core   +1 more source

Comparison of homogeneous and heterogeneous catalysis for synthesis of biodiesel from Madhuca indica oil [PDF]

Chemical Industry and Chemical Engineering Quarterly, 2011
Biodiesel was developed by transesterification of Madhuca indica oil by homogeneous and heterogeneous catalysis. KOH and CaO were taken as homogeneous and heterogeneous catalysts, respectively.
B. SINGH, FAIZAL BUX, Y.C. SHARMA
doaj  

Effect of substrate and catalyst chirality on the diastereoselective epoxidation of R-(+)-limonene with manganese(III) salen complexes

Revista Facultad de Ingeniería Universidad de Antioquia, 2013
The asymmetric epoxidation of R-(+)-limonene in the presence of the Jacobsen´s catalyst in its chiral and achiral either homogeneous or heterogeneous (immobilized on Al-MCM-41) forms was studied using in situ generated dimethyldioxirane as oxidizing ...
Juliana Reyes , Jairo Antonio Cubillos, Aída Luz Villa , Consuelo Montes de Correa   +3 more
doaj   +1 more source

Improving heterogeneous catalysis for biodiesel production process

Cleaner Chemical Engineering, 2022
The relevance of heterogeneous catalysis in biodiesel production cannot be overemphasized, as heterogeneous catalysts have eliminated the demerits associated with a homogeneous catalysts.
Onukwuli Dominic Okechukwu, Ezeugo Joseph, Ude Callistus Nonso, Nwosu-Obieogu Kenechi   +3 more
doaj   +1 more source

Polyoxometalate multi-electron-transfer catalytic systems for water splitting [PDF]

, 2014
The viable production of solar fuels requires a visible-light-absorbing unit, a H2O (or CO2) reduction catalyst (WRC), and a water oxidation catalyst (WOC) that work in tandem to split water or reduce CO2 with H2O rapidly, selectively, and for long ...
Fielden, John, Geletii, Yurii V., Hill, Craig L., Lv, Hongjin, Sumliner, Jordan M.   +4 more
core   +1 more source