scholarly journals Enhanced performance and durability of low catalyst loading PEM water electrolyser based on a short-side chain perfluorosulfonic ionomer

2017 ◽  
Vol 192 ◽  
pp. 477-489 ◽  
Author(s):  
Stefania Siracusano ◽  
Vincenzo Baglio ◽  
Nicholas Van Dijk ◽  
Luca Merlo ◽  
Antonino Salvatore Aricò
Keyword(s):  
Side Chain ◽  
Catalyst Loading ◽  
Short Side ◽  
Water Electrolyser ◽  
Low Catalyst Loading

Performance of a PEM water electrolyser combining an IrRu-oxide anode electrocatalyst and a short-side chain Aquivion membrane

2015 ◽  
Vol 40 (42) ◽  
pp. 14430-14435 ◽  
Author(s):  
S. Siracusano ◽  
V. Baglio ◽  
E. Moukheiber ◽  
L. Merlo ◽  
A.S. Aricò
Keyword(s):  
Side Chain ◽  
Short Side ◽  
Water Electrolyser ◽  
Oxide Anode

scholarly journals Synthesis and Biological Activity of Brassinosteroid Analogues with a Nitrogen-Containing Side Chain

2020 ◽  
Vol 22 (1) ◽  
pp. 155
Author(s):  
Mikhail V. Diachkov ◽  
Karoll Ferrer ◽  
Jana Oklestkova ◽  
Lucie Rarova ◽  
Vaclav Bazgier ◽  
...  
Keyword(s):  
Biological Activity ◽  
Functional Groups ◽  
Side Chain ◽  
Biotic And Abiotic Stresses ◽  
Short Side ◽  
Arabidopsis Root ◽  
Physiological Processes ◽  
Growth Promoting ◽  
The Impact ◽  
Brassinosteroid Analogues

Brassinosteroids are a class of plant hormones that regulate a broad range of physiological processes such as plant growth, development and immunity, including the suppression of biotic and abiotic stresses. In this paper, we report the synthesis of new brassinosteroid analogues with a nitrogen-containing side chain and their biological activity on Arabidopis thaliana. Based on molecular docking experiments, two groups of brassinosteroid analogues were prepared with short and long side chains in order to study the impact of side chain length on plants. The derivatives with a short side chain were prepared with amide, amine and ammonium functional groups. The derivatives with a long side chain were synthesized using amide and ammonium functional groups. A total of 25 new brassinosteroid analogues were prepared. All 25 compounds were tested in an Arabidopsis root sensitivity bioassay and cytotoxicity screening. The synthesized substances showed no significant inhibitory activity compared to natural 24-epibrassinolide. In contrast, in low concentration, several compounds (8a, 8b, 8e, 16e, 22a and 22e) showed interesting growth-promoting activity. The cytotoxicity assay showed no toxicity of the prepared compounds on cancer and normal cell lines.

Y(OTf)3-catalyzed Phosphorylation of 2H-Chromene Hemiacetals with P(O)-H compounds to 2-Phosphorylated 2H-Chromenes

2021 ◽  
Author(s):  
Long Chen ◽  
Shi-Lu Zheng ◽  
Yun-Xiang Zou ◽  
Zhong Wen ◽  
Jiafu Lin ◽  
...  
Keyword(s):  
Catalyst Loading ◽  
Facile Synthesis ◽  
Reaction Conditions ◽  
Low Catalyst Loading

Facile synthesis of 2-phosphorylated 2H-chromenes has been accomplished herein via a Y(OTf)3-catalyzed dehydrative coupling of 2H-chromene hemiacetals with P(O)-H compounds. This protocol features low catalyst loading, mild reaction conditions, broad...

scholarly journals Enantioselective amination of 4-alkylisoquinoline-1,3(2H,4H)-dione derivatives

RSC Advances ◽  
2020 ◽  
Vol 10 (70) ◽  
pp. 42912-42915
Author(s):  
Cheng Cheng ◽  
Ying-Xian Li ◽  
Xue-Min Jia ◽  
Ji-Quan Zhang ◽  
Yong-Long Zhao ◽  
...  
Keyword(s):  
Catalyst Loading ◽  
Low Catalyst Loading

A mild and efficient enantioselective amination of 4-alkylisoquinoline-1,3(2H,4H)-dione derivatives was established and a broad range of amination products were prepared in excellent yields and ee values with low catalyst loading.

scholarly journals Composite short-side-chain PFSA electrolyte membranes containing selectively modified halloysite nanotubes (HNTs)

2021 ◽  
Author(s):  
Sahng Hyuck Woo ◽  
Aurélie Taguet ◽  
Belkacem Otazaghine ◽  
Alia Akrout ◽  
Sara Cavaliere ◽  
...  
Keyword(s):  
Halloysite Nanotubes ◽  
Side Chain ◽  
Short Side ◽  
Electrolyte Membranes

Water sorption and diffusion in a short-side-chain perfluorosulfonic acid ionomer membrane for PEMFCS: effect of temperature and pre-treatment

Desalination ◽  
2006 ◽  
Vol 193 (1-3) ◽  
pp. 398-404 ◽  
Author(s):  
M.G. De Angelis ◽  
S. Lodge ◽  
M. Giacinti Baschetti ◽  
G.C. Sarti ◽  
F. Doghieri ◽  
...  
Keyword(s):  
Water Sorption ◽  
Effect Of Temperature ◽  
Side Chain ◽  
Perfluorosulfonic Acid ◽  
Short Side ◽  
Pre Treatment ◽  
And Diffusion

scholarly journals Synthesis and Characterization of Pd exchanged MMT Clay for Mizoroki-Heck Reaction

2018 ◽  
Vol 16 (1) ◽  
pp. 605-613 ◽  
Author(s):  
Vivek Srivastava
Keyword(s):  
Heck Reaction ◽  
Exchange Process ◽  
Reaction Medium ◽  
Analytical Techniques ◽  
Catalyst Loading ◽  
Catalyst Recycling ◽  
Mmt Clay ◽  
Vinyl Phosphonates ◽  
Low Catalyst Loading

AbstractWe successfully synthesized Pd@MMT clay using a cation exchange process. We characterized all the synthesized Pd@MMT clays using sophisticated analytical techniques before testing them as a heterogeneous catalyst for the Mizoroki - Heck reaction (mono and double). The highest yield of the Mizoroki-Heck reaction product was recovered using thermally stable and highly reactive Pd@ MMT-1 clay catalyst in the functionalized ionic liquid reaction medium. We successfully isolated 2-aryl-vinyl phosphonates (mono-Mizoroki-Heck reaction product) and 2,2-diaryl-vinylphosphonates (double-Mizoroki-Heck reaction product) using aryl halides and dialkyl vinyl phosphonates in higher yields. The low catalyst loading, easy recovery of reaction product and 8 times catalyst recycling are the major highlights of this proposed protocol.

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