Block co-polyMOFs: assembly of polymer–polyMOF hybrids via iterative exponential growth and “click” chemistry

2017 ◽  
Vol 8 (31) ◽  
pp. 4488-4493 ◽  
Author(s):  
M. J. MacLeod ◽  
J. A. Johnson

A diblock copolymer comprised of styrene and a benzene dicarboxylic acid-based block forms a “block co-polyMOF” upon exposure to Zn2+.

Hydrogen ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 58-75
Author(s):  
Sheng-Mu You ◽  
Waleed M. A. El Rouby ◽  
Loïc Assaud ◽  
Ruey-An Doong ◽  
Pierre Millet

Photoanodes comprising a transparent glass substrate coated with a thin conductive film of fluorine-doped tin oxide (FTO) and a thin layer of a photoactive phase have been fabricated and tested with regard to the photo-electro-oxidation of water into molecular oxygen. The photoactive layer was made of a mat of TiO2 nanorods (TDNRs) of micrometric thickness. Individual nanorods were successfully photosensitized with nanoparticles of a metal–organic framework (MOF) of nickel and 1,2-benzene dicarboxylic acid (BDCA). Detailed microstructural information was obtained from SEM and TEM analysis. The chemical composition of the active layer was determined by XRD, XPS and FTIR analysis. Optical properties were determined by UV–Vis spectroscopy. The water photooxidation activity was evaluated by linear sweep voltammetry and the robustness was assessed by chrono-amperometry. The OER (oxygen evolution reaction) photo-activity of these photoelectrodes was found to be directly related to the amount of MOF deposited on the TiO2 nanorods, and was therefore maximized by adjusting the MOF content. The microscopic reaction mechanism which controls the photoactivity of these photoelectrodes was analyzed by photo-electrochemical impedance spectroscopy. Microscopic rate parameters are reported. These results contribute to the development and characterization of MOF-sensitized OER photoanodes.


Polymer ◽  
2015 ◽  
Vol 80 ◽  
pp. 46-51 ◽  
Author(s):  
Junyoung Lee ◽  
Kyuseong Lee ◽  
Jinhwi Park ◽  
Jin Kon Kim ◽  
Taihyun Chang

1991 ◽  
Vol 46 (5-6) ◽  
pp. 398-406 ◽  
Author(s):  
H. Schäfer ◽  
K. Taraz ◽  
H. Budzikiewicz

Pseudomonas strains of the so-called fluorescent group usually produce several pyoverdins which differ only in the nature of a dicarboxylic acid bound amidically to the chromophor. For the pyoverdins isolated from the culture medium of Pseudomonas fluorescens 12 it is shown that succinic acid is an artefact formed by hydrolysis of succinic amide, and that a-ketoglutaric acid is transformed enzymatically to glutamic acid. This process is reversed after the phase of exponential growth of the bacteria. The ratio C4- vs. C5 -acids changes with the culture time and with increasing Fe3+ content of the medium in favor of the latter


2016 ◽  
Vol 45 (7) ◽  
pp. 3063-3069 ◽  
Author(s):  
Teng-Hao Chen ◽  
Andreas Schneemann ◽  
Roland A. Fischer ◽  
Seth M. Cohen

A series of crown ether- and thiacrown ether-derivatized benzene dicarboxylic acid (H2bdc) ligands has been synthesized and incorporated into the prototypical isoreticular metal–organic framework (IRMOF) and UiO-66 materials.


2014 ◽  
Vol 59 (8) ◽  
pp. 2686-2692 ◽  
Author(s):  
Gan-Bing Yao ◽  
Ya-Ping Sun ◽  
Ling Wang ◽  
Jian-Kang Yi ◽  
Long Meng ◽  
...  

EFSA Journal ◽  
2018 ◽  
Vol 16 (11) ◽  
Author(s):  
◽  
Vittorio Silano ◽  
José Manuel Barat Baviera ◽  
Claudia Bolognesi ◽  
Beat Johannes Brüschweiler ◽  
...  

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