Results 91 to 100 of about 140,788 (293)

Application of Metal-Organic Frameworks and Covalent Organic Frameworks as (Photo)Active Material in Hybrid Photovoltaic Technologies

Energies, 2020
Metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) are two innovative classes of porous coordination polymers. MOFs are three-dimensional materials made up of secondary building blocks comprised of metal ions/clusters and organic ...
Onur Yildirim, Matteo Bonomo, Nadia Barbero, Cesare Atzori, Bartolomeo Civalleri, Francesca Bonino, Guido Viscardi, Claudia Barolo   +7 more
doaj   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

Advanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer, Mareen Stahlberger, Xiaojing Liu, Yi Luo, Niklas E. Häußermann, Puja Singhvi, Yidong Liu, Olaf Fuhr, Martin Nieger, Lars Heinke, Thomas Heine, Christof Wöll, Stefan Bräse   +12 more
wiley   +1 more source

Multiple-component covalent organic frameworks

Nature Communications, 2016
Covalent organic frameworks are crystalline porous polymers integrating molecular building blocks into periodic structures. Here, the authors report a general multiple-component condensation strategy that enables the use of one knot and two or three ...
Ning Huang, Lipeng Zhai, Damien E. Coupry, Matthew A. Addicoat, Keiko Okushita, Katsuyuki Nishimura, Thomas Heine, Donglin Jiang   +7 more
doaj   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

Advanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu, Mersad Mostaghimi, Abhinav Chandresh, Saibal Jana, Wolfgang Wenzel, Lars Heinke   +5 more
wiley   +1 more source

Extensive Screening of Solvent‐Linked Porous Polymers through Friedel–Crafts Reaction for Gas Adsorption

Advanced Energy & Sustainability Research, 2021
Scalability, cost, and feasibility of porous structures in gas capture are prerequisites for emerging materials to be promising in the industry. Herein, a simpler variant of Friedel−Crafts’ synthesis of highly porous covalent organic polymers (COPs ...
Vepa Rozyyev, Yeongran Hong, Mustafa S. Yavuz, Damien Thirion, Cafer T. Yavuz   +4 more
doaj   +1 more source

Nonthermal Plasma Technology as a Versatile Strategy for Polymeric Biomaterials Surface Modification: A Review [PDF]

, 2009
In modern technology, there is a constant need to solve very complex problems and to fine-tune existing solutions. This is definitely the case in modern medicine with emerging fields such as regenerative medicine and tissue engineering.
De Geyter, Nathalie, Desmet, Tim, Dubruel, Peter, Leys, Christophe, Morent, Rino, Schacht, Etienne   +5 more
core   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

Advanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal, Laura Calderón‐Rodríguez, Oksana Smirnova, Eren Grossmann, Aparna Binu Varghese, Karen Marlenne Garcia Alvarez, Andreas Schneemann, Thomas Hoyer, Ralf Wyrwa, Felix Helmut Schacher, Alexander Knebel   +10 more
wiley   +1 more source

Impact of Doping on Charge Transport Properties in Thienothiophene‐Based Organic Porous Polymers

Macromolecular Materials and Engineering
Organic covalent frameworks (COFs) have played significant roles in achieving high performance as electronic conductive and semi‐conductive materials in a wide range of applications, including solar cells, capacitors, hydrogen‐production or storing ...
Melis Unal, Recep Isci, Ilknur Demirtas, Erdal Ertas, Wakana Matsuda, Sailun Ji, Takayuki Tanaka, Yusuke Tsutsui, Shu Seki, Turan Ozturk   +9 more
doaj   +1 more source

Gaya belajar pelajar tingkatan lima aliran perdagangan di lima buah sekolah menengah teknik : suatu kajian [PDF]

, 2004
Kajian ini mengenal pasti gaya belajar Visual, Auditori dan Kinestetik pelajar tingkatan lima aliran perdagangan di lima buah sekolah menengah teknik.
Abd Rahman, Mohd Faizal
core