Preparation of covalent triazine frameworks with imidazolium cations embedded in basic sites and their application for CO2 capture

2017 ◽  
Vol 5 (18) ◽  
pp. 8576-8582 ◽  
Author(s):  
Kwangho Park ◽  
Kwangyeol Lee ◽  
Hyunuk Kim ◽  
Vinothkumar Ganesan ◽  
Kanghee Cho ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Rational Design ◽  
Promising Candidate ◽  
Basic Sites ◽  
Imidazolium Cations

Functionalized covalent triazine frameworks (CTFs) realized by rational design of the monomer have been recognized as a promising candidate to achieve improvements in various applications.

Rational design of a porous gel encapsulated bio-hybrid solvent for accelerated CO2 capture and low energy stripping

2019 ◽  
Vol 90 ◽  
pp. 102785
Author(s):  
Prakash C. Sahoo ◽  
Ravindra Kumar ◽  
Manoj Kumar ◽  
Suresh Kumar Puri ◽  
S.S.V. Ramakumar
Keyword(s):  
Co2 Capture ◽  
Rational Design ◽  
Low Energy

scholarly journals CO2-philic moderate selective layer mixed matrix membranes containing surface functionalized NaX towards highly-efficient CO2 capture

RSC Advances ◽  
2019 ◽  
Vol 9 (27) ◽  
pp. 15542-15553 ◽  
Author(s):  
Mohammad Salehi Maleh ◽  
Ahmadreza Raisi
Keyword(s):  
Co2 Capture ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix Membrane ◽  
Mixed Matrix ◽  
Promising Candidate ◽  
Selective Layer ◽  
Highly Efficient ◽  
Industrial Gases ◽  
Matrix Membranes

A functional moderate selective layer mixed matrix membrane (F-MSL-MMM) is a promising candidate to obtain superior separation of industrial gases, compared to commonly mixed matrix membranes.

Fabrication of N-doped porous carbons for enhanced CO2 capture: Rational design of an ammoniated polymer precursor

2019 ◽  
Vol 369 ◽  
pp. 170-179 ◽  
Author(s):  
An-Zhong Peng ◽  
Shi-Chao Qi ◽  
Xin Liu ◽  
Ding-Ming Xue ◽  
Song-Song Peng ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Rational Design ◽  
Polymer Precursor ◽  
Porous Carbons

Arg-substituted VmCT1 analogs reveals promising candidate for the development of new antichagasic agent

Parasitology ◽  
2020 ◽  
Vol 147 (14) ◽  
pp. 1810-1818
Author(s):  
Cibele Nicolaski Pedron ◽  
Katielle Albuquerque Freire ◽  
Marcelo Der Torossian Torres ◽  
Dânya Bandeira Lima ◽  
Marília Lopes Monteiro ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Flow Cytometry ◽  
Mammalian Cells ◽  
Rational Design ◽  
Membrane Damage ◽  
Action Mechanism ◽  
Promising Candidate ◽  
Cell Death Pathway ◽  
Scanning Electron

AbstractVmCT1 is an antimicrobial peptide (AMP) isolated from the venom of the scorpion Vaejovis mexicanus with antimicrobial, anticancer and antimalarial activities, which the rational design with Arg-substitution has yielded AMPs with higher antimicrobial activity than VmCT1. Chagas is a neglected tropical disease, becoming the development of new antichagasic agents is urgent. Thus, we aimed to evaluate the antichagasic effect of VmCT1 and three Arg-substituted analogues, as well their action mechanism. Peptides were tested against the epimastigote, trypomastigote, amastigote forms of Trypanossoma cruzi Y strain and against LLC-MK2 mammalian cells. The mechanism of action of these peptides was evaluated by means of flow cytometry and scanning electron microscopy. VmCT1 presented activity against all three forms of T. cruzi, with EC50 against trypomastigote forms of 1.37 μmol L−1 and selectivity index (SI) of 58. [Arg]3-VmCT1, [Arg]7-VmCT1 and [Arg]11-VmCT1 also showed trypanocidal effect, but [Arg]11-VmCT1 had the best effect, being able to decrease the EC50 against trypomastigote forms to 0.8 μmol L−1 and increase SI to 175. Necrosis was cell death pathway of VmCT1, as well [Arg]7-VmCT1 and [Arg]11-VmCT1, such as observed by membrane damage in flow cytometry analyses and scanning-electron-microscopy. In conclusion, [Arg]11-VmCT1 revealed promising as a candidate for new antichagasic therapeutics.

A microporous MOF with open metal sites and Lewis basic sites for selective CO2 capture

2017 ◽  
Vol 46 (41) ◽  
pp. 14102-14106 ◽  
Author(s):  
Jinjie Qian ◽  
Qipeng Li ◽  
Linfeng Liang ◽  
Ting-Ting Li ◽  
Yue Hu ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Co2 Capture ◽  
Basic Sites ◽  
Open Metal Sites ◽  
Organic Framework

A new robust indium–organic framework (InOF-15, In-BQDC) exhibits high IAST selective CO2 sorption performance for CO2/CH4 and CO2/N2 mixtures at 273 K, which has been attributed to the coexistence of OMSs and LBSs for strong synergistic effect.

Rational design of tailored porous carbon-based materials for CO2 capture

2019 ◽  
Vol 7 (37) ◽  
pp. 20985-21003 ◽  
Author(s):  
Zhen Zhang ◽  
Zachary Paul Cano ◽  
Dan Luo ◽  
Haozhen Dou ◽  
Aiping Yu ◽  
...  
Keyword(s):  
Surface Chemistry ◽  
Co2 Capture ◽  
Porous Carbon ◽  
Rational Design ◽  
Porous Carbons ◽  
Pore Texture ◽  
Carbon Based

This review summarizes the up-to-date advances in porous carbons with tailored pore texture and surface chemistry toward efficient CO2 capture.

scholarly journals Ethynylation of Formaldehyde over CuO/SiO2 Catalysts Modified by Mg Species: Effects of the Existential States of Mg Species

Nanomaterials ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 1137
Author(s):  
Zhipeng Wang ◽  
Lijun Ban ◽  
Pingfan Meng ◽  
Haitao Li ◽  
Yongxiang Zhao
Keyword(s):  
Synergistic Effect ◽  
Chemical Industry ◽  
Valence State ◽  
Rational Design ◽  
Catalytic Synthesis ◽  
Basic Sites ◽  
Support Interaction ◽  
Highly Dispersed ◽  
Modern Chemical

The highly effective catalytic synthesis of 1,4-butynediol (BD) from the Reppe process is a fascinating technology in modern chemical industry. In this work, we reported the effects of the existential states of Mg species in the CuO/silica-magnesia catalysts for the ethynylation of formaldehyde in a simulative slurry reactor. The physichemical properties of the supports and the corresponding catalysts were extensively characterized by various techniques. The experimental results indicated that the introduced Mg species in the form of MgO particles, MgO microcrystals, or Si-O-Mg structures effectively resulted in an abundance of medium-strong basic sites, which can synergize with the active Cu+ species, facilitate the activation of acetylene, and improve the ethynylation activity. For the CuO/MgO-SiO2 catalyst, the existence of Si-O-Mg structures strengthened the Cu–support interaction, which were beneficial to improving the dispersion and the valence stability of the active Cu+ species. The highly dispersed Cu+ species, its stable valence state, and the abundant medium-strong basic sites enhanced the synergistic effect significantly, leading to the superior activity and stability of CuO/MgO-SiO2. The insights into the role of the existential states of Mg species and the revelation of the synergistic effect between active Cu+ species and basic sites can provide theoretic guidance for future rational design of catalysts for the ethynylation reation.

scholarly journals Rational design of efficient transition metal core–shell electrocatalysts for oxygen reduction and evolution reactions

RSC Advances ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 536-542 ◽  
Author(s):  
Zhenghang Zhao ◽  
Jason D'Souza ◽  
Fuyi Chen ◽  
Zhenhai Xia
Keyword(s):  
Fuel Cells ◽  
Transition Metal ◽  
Oxygen Reduction ◽  
Rational Design ◽  
Cost Effective ◽  
Electrochemical Activity ◽  
Core Shell ◽  
Metal Core ◽  
Promising Candidate

Ag core–shell nanoparticle is a promising candidate as an efficient and cost-effective electrocatalyst for ORR and OER in fuel cells and metal–air batteries. Shell strain is the intrinsic descriptor to rationalize the electrochemical activity.

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