MoC quantum dots embedded in ultra-thin carbon film coupled with 3D porous g-C3N4 for enhanced visible-light-driven hydrogen evolution

2021 ◽  
pp. 118457
Author(s):  
Teng Yan ◽  
Yuanpeng Wang ◽  
Yue Cao ◽  
Hua Liu ◽  
Zhiliang Jin
Keyword(s):  
Quantum Dots ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Carbon Film ◽  
Thin Carbon ◽  
Thin Carbon Film ◽  
Visible Light Driven

Novel ZnCdS Quantum Dots Engineering for Enhanced Visible-Light-Driven Hydrogen Evolution

2019 ◽  
Vol 7 (16) ◽  
pp. 13805-13814 ◽  
Author(s):  
Jianmin Chen ◽  
Siming Lv ◽  
Zirong Shen ◽  
Panliang Tian ◽  
Junying Chen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Driven

Cadmium Sulfide Quantum Dots Supported on Gallium and Indium Oxide for Visible-Light-Driven Hydrogen Evolution from Water

ChemSusChem ◽  
2014 ◽  
Vol 7 (9) ◽  
pp. 2537-2544 ◽  
Author(s):  
Yun-xiang Pan ◽  
Huaqiang Zhuang ◽  
Jindui Hong ◽  
Zheng Fang ◽  
Hai Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Visible Light ◽  
Cadmium Sulfide ◽  
Hydrogen Evolution ◽  
Indium Oxide ◽  
Visible Light Driven

Crystal defect-mediated band-gap engineering: a new strategy for tuning the optical properties of Ag2Se quantum dots toward enhanced hydrogen evolution performance

2015 ◽  
Vol 3 (40) ◽  
pp. 20051-20055 ◽  
Author(s):  
Qi Cao ◽  
Yi-Feng Cheng ◽  
Han Bi ◽  
Xuebing Zhao ◽  
Kaiping Yuan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Visible Light ◽  
Band Gap ◽  
Hydrogen Evolution ◽  
High Performance ◽  
Crystal Defect ◽  
Band Gap Engineering ◽  
New Strategy ◽  
Visible Light Driven

Defect-rich Ag2Se QDs were prepared controllably for sensitizing TiO2 toward high-performance visible-light-driven hydrogen-evolution photocatalysts.

Hydrated form of some clay minerals observed using a film sealed environmental cell

1978 ◽  
Vol 36 (1) ◽  
pp. 72-73
Author(s):  
N. Kohyama ◽  
K. Fukushima ◽  
A. Fukami
Keyword(s):  
Clay Minerals ◽  
Morphological Changes ◽  
Carbon Film ◽  
Electron Microscopic Observation ◽  
Adsorbed Water ◽  
Electron Microscopic ◽  
Hydrated Form ◽  
Thin Carbon ◽  
Environmental Cell ◽  
Thin Carbon Film

Since the interlayer or adsorbed water of some clay minerals are quite easily dehydrated in dried air, in vacuum, or at moderate temperatures even in the atmosphere, the hydrated forms have not been observed by a conventional electron microscope(TEM). Recently, specific specimen chambers, “environmental cells(E.C.),” have been developed and confirmed to be effective for electron microscopic observation of wet specimen without dehydration. we observed hydrated forms of some clay minerals and their morphological changes by dehydration using a TEM equipped with an E.C..The E.C., equipped with a single hole copper-microgrid sealed by thin carbon-film, attaches to a TEM(JEM 7A) with an accelerating voltage 100KV and both gas pressure (from 760 Torr to vacuum) and relative humidity can be controlled. The samples collected from various localities in Japan were; tubular halloysite (l0Å) from Gumma Prefecture, sperical halloysite (l0Å) from Tochigi Pref., and intermediate halloysite containing both tubular and spherical types from Fukushima Pref..

Alkaline Dissociation Products of Lumbricus Terrestris Hemoglobin Viewed with the STEM

1981 ◽  
Vol 39 ◽  
pp. 434-435
Author(s):  
O. H. Kapp ◽  
M. Ohtsuki ◽  
N. Robin ◽  
S. N. Vinogradov ◽  
A. V. Crewe
Keyword(s):  
Carbon Film ◽  
Lumbricus Terrestris ◽  
Uranyl Acetate ◽  
Acetate Solution ◽  
Oxygen Carriers ◽  
Complex Molecules ◽  
Thin Carbon ◽  
Thin Carbon Film ◽  
Multiple Copies ◽  
Hill Coefficients

Annelid extracellular hemoglobins are among the largest known proteins (M.W = 3.9 x 106), and together with the hemocyanins are the largest known oxygen carriers. They display oxygen affinities generally higher than those o vertebrate hemoglobins with Hill coefficients ranging from slightly higher than unity to values as high as 5-6. These complex molecules are composed of multiple copies of as many as six different polypeptides and posse: approximately 150 hemes per molecule.The samples were diluted to 100-200 μg/ml with distilled water just before application to a thin carbon film (∽15 Å thick). One percent (w/v) uranyl acetate solution was used for negative staining for 2 minutes and dried in air. The specimens were examined with the high resolution STEM. Their general appearance is that of a hexagonal bilayer (Fig. 1), each layer consisting of six spheroidal subunits. The corner to corner hexagonal dimensic is approximately 300 Å and the bilayer thickness approximately 200 Å.

Dirhodium-Based Supramolecular Framework Catalyst for Visible-Light-Driven Hydrogen Evolution

2021 ◽  
Author(s):  
Pondchanok Chinapang ◽  
Hikaru Iwami ◽  
Takafumi Enomoto ◽  
Takuya Akai ◽  
Mio Kondo ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Supramolecular Framework ◽  
Visible Light Driven
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