Nanostructured metal phosphides: from controllable synthesis to sustainable catalysis

2021 ◽  
Author(s):  
Shao-Hai Li ◽  
Ming-Yu Qi ◽  
Zi-Rong Tang ◽  
Yi-Jun Xu
Keyword(s):  
Physicochemical Properties ◽  
Hybrid Systems ◽  
Controllable Synthesis ◽  
Metal Phosphides ◽  
Catalytic Fields ◽  
Nanostructured Metal

Metal phosphides (MPs) with unique and desirable physicochemical properties provide promising potential in implementable sustainable catalytic fields including electrocatalysis, photocatalysis, mild thermocatalysis, and interdisciplinary hybrid systems.

scholarly journals Controlled Synthesis of Hydroxyapatite Nanomaterials Regulated by Different Phosphorus Sources

Crystals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 678
Author(s):  
Mei-li Qi ◽  
Sijia Qin ◽  
Yin-chuan Wang ◽  
Shengkun Yao ◽  
Liang Qi ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Biomedical Applications ◽  
Reaction System ◽  
Controlled Synthesis ◽  
Controllable Synthesis ◽  
Synthesis System ◽  
Solvothermal Route ◽  
Phosphorus Sources ◽  
One Step ◽  
Size And Morphology

The morphology, nanostructures, and crystallinity of hydroxyapatite (HA) materials have significant effects on their physicochemical properties and biomedical applications. However, the controllable synthesis of HA nanomaterials with various size and morphology using the same synthesis system, though desirable, has remained a challenge. In this work, we successfully synthesized HA nanomaterials with different morphologies via a one-step solvothermal route in the same reaction system. By using (NaPO3)3, Na3PO4·12H2O and NaH2PO4·2H2O as phosphorus sources, the growth of HA crystals was regulated, resulting in the transformation of HA nanomaterials morphology from nanorods to nanowires. Different concentrations of PO43− and OH− ions in the reaction environments regulated by different phosphates lead to different nanostructures of HA crystals. Our work provides an instructive way to controllably fabricate HA nanomaterials with various morphologies and will widen the biomedical applications of HA materials.

Recent advances in nanostructured metal phosphides as promising anode materials for rechargeable batteries

2020 ◽  
Vol 8 (37) ◽  
pp. 19113-19132
Author(s):  
Zhifa Li ◽  
Yun Zheng ◽  
Quanyi Liu ◽  
Yanqing Wang ◽  
Donghui Wang ◽  
...  
Keyword(s):  
Anode Materials ◽  
Rechargeable Batteries ◽  
Metal Phosphide ◽  
Recent Advances ◽  
Metal Phosphides ◽  
Nanostructured Metal

Recent advances and future concerns in nanostructured metal phosphide anodes for rechargeable Li-, Na-, and K-ion batteries.

scholarly journals Controllable synthesis of nanostructured metal oxide and oxyhydroxide materials via electrochemical methods

2018 ◽  
Vol 10 ◽  
pp. 7-15 ◽  
Author(s):  
Matthew J. Lawrence ◽  
Adam Kolodziej ◽  
Paramaconi Rodriguez
Keyword(s):  
Metal Oxide ◽  
Electrochemical Methods ◽  
Controllable Synthesis ◽  
Nanostructured Metal

Controllable synthesis of 3D hierarchical Co3O4 nanocatalysts with various morphologies for the catalytic oxidation of toluene

2018 ◽  
Vol 6 (2) ◽  
pp. 498-509 ◽  
Author(s):  
Quanming Ren ◽  
Shengpeng Mo ◽  
Ruosi Peng ◽  
Zhentao Feng ◽  
Mingyuan Zhang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Physicochemical Properties ◽  
Catalytic Oxidation ◽  
Controllable Synthesis

Morphology plays an important role in the physicochemical properties and catalytic activity of Co3O4 catalysts.

Structure and physicochemical properties of nanostructured metal oxide films for use as the sensitive layer in gas sensors

2015 ◽  
Vol 9 (5) ◽  
pp. 733-742 ◽  
Author(s):  
T. V. Belysheva ◽  
A. K. Gatin ◽  
M. V. Grishin ◽  
M. I. Ikim ◽  
V. M. Matyuk ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Physicochemical Properties ◽  
Gas Sensors ◽  
Oxide Films ◽  
Sensitive Layer ◽  
Metal Oxide Films ◽  
Nanostructured Metal

Preparation and characterisation of vanadium pentoxide supported rhodium catalyst

1988 ◽  
Vol 46 ◽  
pp. 946-947
Author(s):  
A. Legrouri
Keyword(s):  
Aqueous Solution ◽  
Thermal Decomposition ◽  
Physicochemical Properties ◽  
Surface Area ◽  
Vanadium Pentoxide ◽  
High Purity ◽  
Gas Adsorption ◽  
Rhodium Catalyst ◽  
Optical Methods ◽  
Reducible Oxides

The industrial importance of metal catalysts supported on reducible oxides has stimulated considerable interest during the last few years. This presentation reports on the study of the physicochemical properties of metallic rhodium supported on vanadium pentoxide (Rh/V2O5). Electron optical methods, in conjunction with other techniques, were used to characterise the catalyst before its use in the hydrogenolysis of butane; a reaction for which Rh metal is known to be among the most active catalysts.V2O5 powder was prepared by thermal decomposition of high purity ammonium metavanadate in air at 400 °C for 2 hours. Previous studies of the microstructure of this compound, by HREM, SEM and gas adsorption, showed it to be non— porous with a very low surface area of 6m2/g3. The metal loading of the catalyst used was lwt%Rh on V2Q5. It was prepared by wet impregnating the support with an aqueous solution of RhCI3.3H2O.

Studies on the Degradation of Human Fibrinogen by Plasmin and Trypsin

1966 ◽  
Vol 16 (03/04) ◽  
pp. 526-540 ◽  
Author(s):  
E. A Beck ◽  
D. P Jackson
Keyword(s):  
Physicochemical Properties ◽  
Electrophoretic Mobility ◽  
Rapid Loss ◽  
Clotting System ◽  
Human Fibrinogen ◽  
Peptide Bonds ◽  
Physico Chemical ◽  
Starch Gel ◽  
Ph Stat ◽  
Rapid Appearance

SummaryThe effects of trypsin and plasmin on the functional and physicochemical properties of purified human fibrinogen were observed at various stages of proteolysis. Concentrations of plasmin and trypsin that produced fibrinogenolysis at comparable rates as measured in a pH stat produced, at similar rates, loss of precipitability of fibrinogen by heat and ammonium sulphate and alterations in electrophoretic mobility on starch gel. Trypsin produced a more rapid loss of clottability of fibrinogen and a more rapid appearance of inhibitors of the thrombin-fibrinogen clotting system than did plasmin. Consistent differences were noted between the effects of trypsin and plasmin on the immunoelectrophoretic properties of fibrinogen during the early stages of proteolysis.These results are consistent with the hypothesis that trypsin initially reacts with the same peptide bonds of fibrinogen that are split by thrombin, but these same bonds do not appear to be split initially by plasmin. Measurement of the various functional and physico-chemical changes produced by the action of trypsin and plasmin on fibrinogen can be used to recognize various stages of proteolysis.

Ruthenium(II) Complexes of 1H-Imidazo[4,5-f][1,10]Phenanthroline Derivatives: Physicochemical Properties and Photosensitizing Ability

INEOS OPEN ◽  
2020 ◽  
Vol 3 ◽  
Author(s):  
S. D. Tokarev ◽  
◽  
Yu. V. Fedorov ◽  
Keyword(s):  
Physicochemical Properties

The effectiveness of granular chalk use for growing winter wheat on grey forest soil

2020 ◽  
pp. 181-191
Author(s):  
M. Tkachenko ◽  
N. Borys ◽  
Ye. Kovalenko
Keyword(s):  
Winter Wheat ◽  
Physicochemical Properties ◽  
Forest Soil ◽  
Active Substance ◽  
Mass Fraction ◽  
Gray Forest Soil ◽  
Mineral Fertilizers ◽  
Acidic Soils ◽  
Grey Forest Soil

The research aims to establish the eff ectiveness of granular chalk use produced by «Slavuta-Calcium» Ltd. under growing Poliska–90 winter wheat variety, changing the physicochemical properties of grey forest soil and the wheat productivity. It also aims to establish optimal dosis of «Slavuta-Calcium» granular chalk as the meliorant and mineral fertilizer for grey forest soil in the system of winter wheat fertilization. In the temporary fi eld studies, various doses of nutrients N60–90–120P30–45–60K60–90–120 combined with «Slavuta–Calcium» granular chalk in a dose of Ca230–460–690 kg/ha of the active substance were studied against the background of secondary plowing of rotation products – soybean biomass that averaged 2.34 t/ha. Granular chalk is a modern complex highly eff ective meliorant with the content of Ca – 37.7 and Mg – 0.2 %, the mass fraction of carbonates (CaCO3 + MgCO3) makes at least 95 %. It is characterized by a high level of solubility when interacting with moisture in soil. It has a form of white granules, the mass fraction of 4.0–6.0 mm in size granules makes not less than 90 % and the one of 1.0 mm in size makes less than 5 %. Reactivity – 97 %. The granular chalk is advisable to apply on acidic soils, as a highly concentrated calcium-magnesium fertilizer, with the former as the dominant fertilizer, to optimize the physicochemical properties of the soil, as well as the plant nutrition system, in particular, increasing the availability of an element for assimilation by plants and as long-term ameliorants. The eff ectiveness of the use of mineral fertilizers, in particular acidic nitrogen on highly and medium acidic soils, after chemical reclamation is increased by 30–50 %, and slightly acidic by 15–20 %. The increase in productivity of crops from the combined eff ects of nutrients and chalk granulated is usually higher than when separately applied. The eff ectiveness of the integrated action of these elements is manifested in the growth of plant productivity and the quality of the resulting products, as well as the optimization of physical chemical properties and soil buff ering in the long term. In order to optimize the physicochemical properties of the arable layer of gray forest soil and the productive nutrition of agricultural crops, winter wheat, in particular, biogenic elements should be used in doses N60-90-120P30-45- 60K60-90-120 with granulated chalk «Slavuta-Calcium» in doses of Ca230-460-690 kg/ha of active substance. Granulated chalk obtained as a result of industrial grinding of solid sedimentary carbonate rocks of natural origin, subsequently under the infl uence of the granulation process of the starting material contains Ca and Mg carbonates of at least 95 %, dense granules which facilitates convenient mechanized application, as well as chalk suitable for accurate metered application on the quest map. Key words: granular chalk, gray forest soil, chemical reclamation, crop productivity.

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