Sixfold interpenetrated diamondoid network of Cu(I): Synthesis, structure, selective anion exchange and luminescence properties

There is a wide range of experimental results related to dislocations in diamond, group IV, II-VI, III-V semiconducting compounds, but few of these come from isolated, well-characterized individual dislocations. We are here concerned with only those results obtained in a transmission electron microscope so that the dislocations responsible were individually imaged. The luminescence properties of the dislocations were studied by cathodoluminescence performed at low temperatures (~30K) achieved by liquid helium cooling. Both spectra and monochromatic cathodoluminescence images have been obtained, in some cases as a function of temperature.There are two aspects of this work. One is mainly of technological significance. By understanding the luminescence properties of dislocations in epitaxial structures, future non-destructive evaluation will be enhanced. The second aim is to arrive at a good detailed understanding of the basic physics associated with carrier recombination near dislocations as revealed by local luminescence properties.

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An extracorporeal device to treat barbiturate poisoning. Use of anion-exchange resins in dogs

JAMA ◽

10.1001/jama.197.2.118 ◽

1966 ◽

Vol 197 (2) ◽

pp. 118-120 ◽

Cited By ~ 2

Author(s):

T. F. Nealon

Keyword(s):

Anion Exchange ◽

Anion Exchange Resins ◽

Barbiturate Poisoning ◽

Exchange Resins

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Effect of annealing temperature on luminescence properties of ZnWO 4 :Eu 3+ nanophosphor

Micro & Nano Letters ◽

10.1049/mnl.2018.5651 ◽

2019 ◽

Vol 14 (5) ◽

pp. 496-500 ◽

Cited By ~ 1

Author(s):

Chunyang Li ◽

Xiaodi Du ◽

Yurong Shi ◽

Zhenling Wang

Keyword(s):

Annealing Temperature ◽

Luminescence Properties

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Importance of anion exchange resin as supported catalyst

Journal de Chimie Physique ◽

10.1051/jcp/1994910063 ◽

1994 ◽

Vol 91 ◽

pp. 63-74 ◽

Cited By ~ 1

Author(s):

MY El-Sheikh

Keyword(s):

Anion Exchange ◽

Exchange Resin ◽

Anion Exchange Resin ◽

Supported Catalyst

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Bovine Factors X1And X2: Activation Peptide Based Chromatographic Differences

10.1055/s-0038-1665665 ◽

1979 ◽

Author(s):

Takashi Morita ◽

Craig Jackson

Keyword(s):

Amino Acid ◽

Anion Exchange ◽

Gel Filtration ◽

Heart Association ◽

Personal Communication ◽

Exchange Chromatography ◽

Amino Acid Sequences ◽

Factor X ◽

Activation Peptide ◽

Activation Peptides

Bovine Factor X is eluted in two forms (X1and X2) from anion exchange chromatographic columns. These two forms have indistinguishable amino acid compositions, molecular weights and specific activities. The amino acid sequences containing the γ-carboxyglutamic acid residues have been shown to be identical in X1 and X2(H. Morris, personal communication). An activation peptide is released from the N-terminal region of the heavy chain of Factor X by an activator from Russell’s viper venom. This peptide can be isolated after activation by gel filtration on Sephadex G-100 under nondenaturing conditions. The activation peptides from a mixture of Factors X1 and X2 were separated into two forms by anion-exchange chromatography. The activation peptide (AP1) which eluted first was shown to be derived from Factor X1. while the activation peptiae (AP2) which eluted second was shown to be derived from X2 on the basis of chromatographic separations carried out on Factors X1 and X2 separately. Factor Xa was eluted as a symmetrical single peak. On the basis of these and other data characterizing these products, we conclude that the difference between X1 and X2 are properties of the structures of the activation peptides. (Supported by a grant HL 12820 from the National Heart, Lung and Blood Institute. C.M.J. is an Established Investigator of the American Heart Association).

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Growth and Thermo-luminescence Properties of Dy: Bi$lt;inf$gt;4$lt;/inf$gt;Si$lt;inf$gt;3$lt;/inf$gt;O$lt;inf$gt;12$lt;/inf$gt; Crystals

Journal of Inorganic Materials ◽

10.15541/jim20160221 ◽

2016 ◽

Vol 31 (10) ◽

pp. 1068 ◽

Cited By ~ 1

Author(s):

WANG Mei-Ling ◽

XU Jia-Yue ◽

ZHANG Yan ◽

CHU Yao-Qing ◽

YANG Bo-Bo ◽

...

Keyword(s):

Luminescence Properties ◽

Thermo Luminescence

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Enhanced catalytic activity of low-Pt content nanocatalysts supported on hollow carbon spheres for the ORR in alkaline media

MRS Advances ◽

10.1557/adv.2020.370 ◽

2020 ◽

Vol 5 (57-58) ◽

pp. 2961-2972

Author(s):

P.C. Meléndez-González ◽

E. Garza-Duran ◽

J.C. Martínez-Loyola ◽

P. Quintana-Owen ◽

I.L. Alonso-Lemus ◽

...

Keyword(s):

Catalytic Activity ◽

Anion Exchange ◽

Average Particle Size ◽

Synthesis Method ◽

Alkaline Media ◽

High Catalytic Activity ◽

Average Particle ◽

Carbon Spheres ◽

Hollow Carbon ◽

Hollow Carbon Spheres

In this work, low-Pt content nanocatalysts (≈ 5 wt. %) supported on Hollow Carbon Spheres (HCS) were synthesized by two routes: i) colloidal conventional polyol, and ii) surfactant-free Bromide Anion Exchange (BAE). The nanocatalysts were labelled as Pt/HCS-P and Pt/HCS-B for polyol and BAE, respectively. The physicochemical characterization of the nanocatalysts showed that by following both methods, a good control of chemical composition was achieved, obtaining in addition well dispersed nanoparticles of less than 3 nm TEM average particle size (d) on the HCS. Pt/HCS-B contained more Pt0 species than Pt/HCS-P, an effect of the synthesis method. In addition, the structure of the HCS remains more ordered after BAE synthesis, compared to polyol. Regarding the catalytic activity for the Oxygen Reduction Reaction (ORR) in 0.5 M KOH, Pt/HCS-P and Pt/HCS-B showed a similar performance in terms of current density (j) at 0.9 V vs. RHE than the benchmark commercial 20 wt. % Pt/C. However, Pt/HCS-P and Pt/HCS-B demonstrated a 6 and 5-fold increase in mass catalytic activity compared to Pt/C, respectively. A positive effect of the high specific surface area of the HCS and its interactions with metal nanoparticles and electrolyte, which promoted the mass transfer, increased the performance of Pt/HCS-P and Pt/HCS-B. The high catalytic activity showed by Pt/HCS-B and Pt/HCS-P for the ORR, even with a low-Pt content, make them promising cathode nanocatalysts for Anion Exchange Membrane Fuel Cells (AEMFC).

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