Chemically Robust, Cu-based Porous Coordination Polymer Nanosheets for Efficient Hydrogen Evolution: Experimental and Theoretical Studies

2019 ◽  
Vol 11 (23) ◽  
pp. 21086-21093 ◽  
Author(s):  
Bihang Zhou ◽  
Jia-jia Zheng ◽  
Jingui Duan ◽  
Chunchao Hou ◽  
Yang Wang ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Hydrogen Evolution ◽  
Theoretical Studies ◽  
Porous Coordination Polymer ◽  
Experimental And Theoretical Studies

Experimental and Theoretical Studies of a Pyridylvinyl(benzoate) Based Coordination Polymer Structure

CrystEngComm ◽  
2021 ◽  
Author(s):  
Yuri Dezotti ◽  
Manoel Victor Frutuoso Barrionuevo ◽  
Ingrid Fernandes Silva ◽  
Marcos A Ribeiro ◽  
Rafael Añez ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Structural Properties ◽  
Polymer Structure ◽  
Theoretical Studies ◽  
Experimental And Theoretical Studies

The electronic, adsorption and structural properties of a layered coordination polymer (CP), the {[Cu(3,4-pvb)2]·x(dmf)·y(H2O)}n (x=4; y=0 or x=3.5; y=1), formed by the coordination of {3-[2-(4-pyridyl)vinyl]}benzoate (3,4-pvb-) to copper(II), was studied...

Molybdenum diboride nanoparticles as a highly efficient electrocatalyst for the hydrogen evolution reaction

2017 ◽  
Vol 1 (9) ◽  
pp. 1928-1934 ◽  
Author(s):  
Palani R. Jothi ◽  
Yuemei Zhang ◽  
Jan P. Scheifers ◽  
Hyounmyung Park ◽  
Boniface P. T. Fokwa
Keyword(s):  
Hydrogen Evolution ◽  
Noble Metal ◽  
Hydrogen Evolution Reaction ◽  
Theoretical Studies ◽  
Highly Efficient ◽  
Highly Active ◽  
Molybdenum Sulfides ◽  
Molybdenum Boride ◽  
Metal Nanomaterials ◽  
Experimental And Theoretical Studies

Non-noble metal nanomaterials (molybdenum sulfides, phosphides, carbides, and nitrides) have recently emerged as highly active electrocatalysts for the hydrogen evolution reaction (HER). Here we present experimental and theoretical studies of the first highly active molybdenum boride nanomaterial for the HER.

The Stabilizing Effect of Pre-Equilibria: A Trifluoromethyl Complex as CF2 Reservoir in Catalytic Olefin Difluorocarbenation

2020 ◽  
Author(s):  
Thomas Louis-Goff ◽  
Huu Vinh Trinh ◽  
Eileen Chen ◽  
Arnold L. Rheingold ◽  
Christian Ehm ◽  
...  
Keyword(s):  
High Selectivity ◽  
Side Reactions ◽  
Theoretical Studies ◽  
Attractive Feature ◽  
Catalyst Recovery ◽  
Wide Range ◽  
Stabilizing Effect ◽  
Experimental And Theoretical Studies

A new, efficient, catalytic difluorocarbenation of olefins to give 1,1-difluorocyclopropanes is presented. The catalyst, an organobismuth complex, uses TMSCF<sub>3</sub> as a stoichiometric difluorocarbene source. We demonstrate both the viability and robustness of this reaction over a wide range of alkenes and alkynes, including electron-poor alkenes, to generate the corresponding 1,1-difluorocyclopropanes and 1,1-difluorocyclopropenes. Ease of catalyst recovery from the reaction mixture is another attractive feature of this method. In depth experimental and theoretical studies showed that the key difluorocarbene-generating step proceeds through a bismuth non-redox synchronous mechanism generating a highly reactive free CF<sub>2</sub> in an endergonic pre-equilibrium. It is the reversibility when generating the difluorocarbene that accounts for the high selectivity, while minimizing CF<sub>2</sub>-recombination side-reactions.

Strong coupling: resonant effects

2017 ◽  
Author(s):  
Alexey V. Kavokin ◽  
Jeremy J. Baumberg ◽  
Guillaume Malpuech ◽  
Fabrice P. Laussy
Keyword(s):  
Strong Coupling ◽  
Experimental Studies ◽  
Strong Coupling Regime ◽  
Theoretical Studies ◽  
Stimulated Scattering ◽  
Quantum Theories ◽  
Pump Probe ◽  
Exciton Polaritons ◽  
Linear Optical Properties ◽  
Experimental And Theoretical Studies

This chapter presents experimental studies performed on planar semiconductor microcavities in the strong-coupling regime. The first section reviews linear experiments performed in the 1990s that evidence the linear optical properties of cavity exciton-polaritons. The chapter is then focused on experimental and theoretical studies of resonantly excited microcavity emission. We mainly describe experimental configuations in which stimulated scattering was observed due to formation of a dynamical condensate of polaritons. Pump-probe and cw experiments are described in addition. Dressing of the polariton dispersion and bistability of the polariton system due to inter-condensate interactions are discussed. The semiclassical and the quantum theories of these effects are presented and their results analysed. The potential for realization of devices is also discussed.

Sign in / Sign up

Export Citation Format

Share Document