Role of MgxCa1−xCO3 on the physical–chemical properties and cyclic CO2 capture performance of dolomite by two-step calcination

2015 ◽  
Vol 614 ◽  
pp. 199-206 ◽  
Author(s):  
Ke Wang ◽  
Dongtai Han ◽  
Pengfei Zhao ◽  
Xiumeng Hu ◽  
Zeguang Yin ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Chemical Properties ◽  
Physical Chemical

scholarly journals Ultra-Fine Ni2P Nanoparticles Decorated R-GO: Novel Phosphidation Approach and Dibenzothiophene Hydrodesulfurization

2020 ◽  
Author(s):  
Vasileios Tzitzios ◽  
Vishnu Pillai ◽  
Christina Gioti ◽  
Marios Katsiotis ◽  
Thomas Karagiannis ◽  
...  
Keyword(s):  
Hybrid Materials ◽  
Chemical Properties ◽  
Spherical Shape ◽  
Physical Chemical ◽  
Metal Phosphides ◽  
Reduced Graphene ◽  
Catalytically Active ◽  
One Step ◽  
Transition Metal Phosphides

Nanostructured transition metal phosphides gathered last years an elevated scientific interest, due to their unique physical-chemical properties. Nickel phosphide nanoparticles, with the controllable crystal structure, from the metal rich tetragonal Ni<sub>12</sub>P<sub>5</sub> to the phosphorous rich hexagonal Ni<sub>2</sub>P, and <i>hcp</i> Ni<sub>2</sub>P decorated r-GO (reduced graphene oxide), nano-hybrid materials have been synthesized via a novel one step organometallic approach in primary-tertiary aliphatic amines mixture. The nanoparticles are monodispersed, with spherical shape and controllable size in the sub-10 nm regime and decorate uniformly the surface of the r-GO, leading to the formation of Ni<sub>2</sub>P/r-GO hybrid materials. The materials were characterized by powder XRD, TEM and Raman spectroscopy and catalytically evaluated for the dibenzothiophene hydrodesulphurization (HDS) reaction. The results show that the role of the tertiary amine is crucial for the phosphidation process and the r-GO is an ideal alternative, to the traditional inorganic ones, support for the immobilization of the catalytically active component, preventing significantly sintering effects.

scholarly journals The role of metalloporphyrins on the physical-chemical properties of petroleum fluids

Fuel ◽  
2017 ◽  
Vol 188 ◽  
pp. 374-381 ◽  
Author(s):  
Hugo Santos Silva ◽  
Ana C.R. Sodero ◽  
Jean-Pierre Korb ◽  
Ahmad Alfarra ◽  
Pierre Giusti ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Physical Chemical

scholarly journals Ultra-Fine Ni2P Nanoparticles Decorated R-GO: Novel Phosphidation Approach and Dibenzothiophene Hydrodesulfurization

2020 ◽  
Author(s):  
Vasileios Tzitzios ◽  
Vishnu Pillai ◽  
Christina Gioti ◽  
Marios Katsiotis ◽  
Thomas Karagiannis ◽  
...  
Keyword(s):  
Hybrid Materials ◽  
Chemical Properties ◽  
Spherical Shape ◽  
Physical Chemical ◽  
Metal Phosphides ◽  
Reduced Graphene ◽  
Catalytically Active ◽  
One Step ◽  
Transition Metal Phosphides

Nanostructured transition metal phosphides gathered last years an elevated scientific interest, due to their unique physical-chemical properties. Nickel phosphide nanoparticles, with the controllable crystal structure, from the metal rich tetragonal Ni<sub>12</sub>P<sub>5</sub> to the phosphorous rich hexagonal Ni<sub>2</sub>P, and <i>hcp</i> Ni<sub>2</sub>P decorated r-GO (reduced graphene oxide), nano-hybrid materials have been synthesized via a novel one step organometallic approach in primary-tertiary aliphatic amines mixture. The nanoparticles are monodispersed, with spherical shape and controllable size in the sub-10 nm regime and decorate uniformly the surface of the r-GO, leading to the formation of Ni<sub>2</sub>P/r-GO hybrid materials. The materials were characterized by powder XRD, TEM and Raman spectroscopy and catalytically evaluated for the dibenzothiophene hydrodesulphurization (HDS) reaction. The results show that the role of the tertiary amine is crucial for the phosphidation process and the r-GO is an ideal alternative, to the traditional inorganic ones, support for the immobilization of the catalytically active component, preventing significantly sintering effects.

Role of Physical Chemical Properties in Drug Relay into Skin Compartments

2008 ◽  
Vol 21 (6) ◽  
pp. 294-299 ◽  
Author(s):  
C.R. Fortenbach ◽  
B.S. Modjtahedi ◽  
H.I. Maibach
Keyword(s):  
Chemical Properties ◽  
Physical Chemical

scholarly journals Study on the Printability through Digital Light Processing Technique of Ionic Liquids for CO2 Capture

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 1932 ◽  
Author(s):  
Matteo Gillono ◽  
Annalisa Chiappone ◽  
Lorenzo Mendola ◽  
Manuel Gomez Gomez ◽  
Luciano Scaltrito ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
3D Printing ◽  
Co2 Capture ◽  
Chemical Properties ◽  
Processing Technique ◽  
High Complexity ◽  
Digital Light Processing ◽  
Physical Chemical

Here we present new 3D printable materials based on the introduction of different commercially available ionic liquids (ILs) in the starting formulations. We evaluate the influence of these additives on the printability of such formulations through light-induced 3D printing (digital light processing—DLP), investigating as well the effect of ionic liquids with polymerizable groups. The physical chemical properties of such materials are compared, focusing on the permeability towards CO2 of the different ILs present in the formulations. At last, we show the possibility of 3D printing high complexity structures, which could be the base of new high complexity filters for a more efficient CO2 capture.

The Role of Temperature on Physical–Chemical Properties of Green Synthesized Porous Carbon Nanoparticles

2019 ◽  
Vol 11 (7) ◽  
pp. 3821-3831 ◽  
Author(s):  
S. Supriya ◽  
Ganesan Sriram ◽  
Zainab Ngaini ◽  
C. Kavitha ◽  
Mahaveer Kurkuri ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Carbon Nanoparticles ◽  
Chemical Properties ◽  
Physical Chemical

Role of enzymes in soil

2018 ◽  
Vol 22 (03) ◽  
pp. 96-102 ◽  
Author(s):  
Bayarmaa J ◽  
Purev D
Keyword(s):  
Soil Enzymes ◽  
Great Influence ◽  
Chemical Properties ◽  
Biological Properties ◽  
Factors Affecting ◽  
Physical Chemical ◽  
Almost All ◽  
Physical And Chemical ◽  
And Chemical Properties

Enzymes are an integral part of the soil and their activity is closely related to the physical, chemical and biological properties of the soil. Human activities, intensive agriculture, changes in ecosystem, environmental pollution have a great influence on the activity of soil enzymes. Depending on the origin soil enzymes are indicators for accessing the condition of the soil for short and long period of time. Almost all anthropogenic and environmental factors affecting the physical and chemical properties of the soil are studied for this purpose, but enzymes in the soil are the most sensitive to these changes. So it is a time to the study of the enzymes in the soil.

scholarly journals The utilization of tree bark

BioResources ◽  
2016 ◽  
Vol 11 (3) ◽  
pp. 7859-7888 ◽  
Author(s):  
Zoltan Pásztory ◽  
Ildikó Ronyecz Mohácsiné ◽  
Galina Gorbacheva ◽  
Zoltán Börcsök
Keyword(s):  
Raw Materials ◽  
Chemical Properties ◽  
Protective Role ◽  
Tree Bark ◽  
Chemical Components ◽  
Unusual Structure ◽  
Physical Chemical ◽  
Industrial Utilization ◽  
Modern Technologies

The utilization of natural raw materials has been practiced for centuries. Of raw materials, wood and its bark have outstanding significance because of their special chemical components and unusual structure. Annual bark production is estimated to be between 300 and 400 million m3. The bark of different tree species has been used extensively in or in conjunction with modern technologies. This article presents a comprehensive summary of these methods of utilization and their results. The diversity of bark utilization derives from the variety of the bark of different species and from the possibilities encoded in the material. Following the anatomic summary, the protective role of the bark is discussed, highlighting its physical-chemical properties and the different methods of medical, energetic, and industrial utilization.

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