Molten state synthesis of nickel phosphides: mechanism and composition-activity correlation for electrochemical applications

2021 ◽  
Author(s):  
Rotem Geva ◽  
Natasha Ronith Levy ◽  
Jonathan Tzadikov ◽  
Reut Cohen ◽  
Michal Weitman ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Electronic Structure ◽  
Chemical Stability ◽  
Low Cost ◽  
Single Step ◽  
Molten State ◽  
Electrochemical Applications ◽  
Nickel Phosphides ◽  
Scalable Synthesis

Nickel phosphides are highly attractive low-cost (electro)catalysts, thanks to their unique electronic structure, versatile phase diagram, and chemical stability. Herein, we describe a single-step, simple, and scalable synthesis of nickel...

scholarly journals Strong correlations elucidate the electronic structure and phase diagram of LaAlO3/SrTiO3 interface

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
E. Maniv ◽  
M. Ben Shalom ◽  
A. Ron ◽  
M. Mograbi ◽  
A. Palevski ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Electronic Structure ◽  
Strong Correlations

Reductive Dehalogenation – Challenges of Perfluorinated Organics

2021 ◽  
Vol 02 ◽  
Author(s):  
Joanna Kisała ◽  
Jakub Goclon ◽  
Dariusz Pogocki
Keyword(s):  
Electronic Structure ◽  
Chemical Stability ◽  
Conventional Treatment ◽  
Rational Design ◽  
Reduction Process ◽  
Reductive Dehalogenation ◽  
Emission Characteristic ◽  
Organic Micropollutants ◽  
Treatment Processes ◽  
Physical Principles

: In this mini-review, the problem of effective elimination of perfluorinated organic micropollutants from aquatic environment has been touched. The extraordinary chemical stability of common perfluorinated organic surfactants results in unsatisfactory efficiency of conventional treatment processes, which opens perspectives for photocatalytic methods - especially for reductive-dehalogenation. To tackle this challenge by photocatalysis one have to be aware of objective, physical limits set by very nature of the reduction process, electronic structure chemical stability, and formulation of the catalyst as well as emission characteristic of the light source. The paper provides some clues for rational design of reductive-dehalogenation oriented photolytic systems, which are derived on the basis of physical principles, and, rather sparse, experimental examples.

Tuning the electronic structure of NiCoVOx nanosheets through S doping for enhanced oxygen evolution

Nanoscale ◽  
2021 ◽  
Author(s):  
Haibin Ma ◽  
ChangNing SUN ◽  
Zhili Wang ◽  
Qing Jiang
Keyword(s):  
Electronic Structure ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Low Cost ◽  
Ni Foam ◽  
Electrochemical Water Splitting

It is of great importance to develop efficient and low-cost oxygen evolution reaction (OER) electrocatalysts for electrochemical water splitting. Herein, S doped NiCoVOx nanosheets grown on Ni-Foam (S-NiCoVOx/NF) with modified...

Alternative technology concepts for low-cost and high-speed 2D and 3D interconnect manufacturing

2013 ◽  
Vol 2013 (1) ◽  
pp. 000001-000006
Author(s):  
F. Roozeboom ◽  
M. Smets ◽  
B. Kniknie ◽  
M. Hoppenbrouwers ◽  
G. Dingemans ◽  
...  
Keyword(s):  
High Speed ◽  
Room Temperature ◽  
Microelectromechanical Systems ◽  
Low Cost ◽  
Industrial Process ◽  
Atomic Layer ◽  
Single Step ◽  
Thermal Mode ◽  
Different Types ◽  
Sidewall Passivation

The current industrial process of choice for Deep Reactive Ion Etching (DRIE) of 3D features, e.g. Through-Silicon Vias (TSVs), Microelectromechanical Systems (MEMS), etc., is the Bosch process, which uses alternative SF6 etch cycles and C4F8-based sidewall passivation cycles in a time-sequenced mode. An alternative, potentially faster and more accurate process is to have wafers pass under spatially-divided reaction zones, which are individually separated by so-called N2-gas bearings ‘curtains’ of heights down to 10–20 μm. In addition, the feature sidewalls can be protected by replacing the C4F8-based sidewall passivation cycles by cycles forming chemisorbed and highly uniform passivation layers of Al2O3 or SiO2 deposited by Atomic Layer Deposition (ALD), also in a spatially-divided mode. ALD is performed either in thermal mode, or plasma-assisted mode in order to achieve near room-temperature processing. For metal filling of 3D-etched TSVs, or for deposition of 2D metal conductor lines one can use Laser-Induced Forward Transfer (LIFT) of metals. LIFT is a maskless, ‘solvent’-free deposition method, utilizing different types of pulsed lasers to deposit thin material (e.g. Cu, Au, Al, Cr) layers with μm-range resolution from a transparent carrier (ribbon) onto a close-by acceptor substrate. It is a dry, single-step, room temperature process in air, suitable for different types of interconnect fabrication, e.g. TSV filling and redistribution layers (RDL), without the use of wet chemistry.

scholarly journals Crystal structure, homogeneity range and electronic structure of rhombohedral γ-Mn5Al8

2017 ◽  
Vol 232 (7-9) ◽  
Author(s):  
Srinivasa Thimmaiah ◽  
Zachary Tener ◽  
Tej N. Lamichhane ◽  
Paul C. Canfield ◽  
Gordon J. Miller
Keyword(s):  
Crystal Structure ◽  
Phase Diagram ◽  
Electronic Structure ◽  
Single Crystal ◽  
Single Crystals ◽  
Homogeneity Range ◽  
X Ray Diffraction ◽  
X Ray ◽  
Eds Analysis

AbstractThe γ-region of the Mn–Al phase diagram between 45 and 70 at.% Al was re-investigated by a combination of powder and single crystal X-ray diffraction as well as EDS analysis to establish the distribution of Mn and Al atoms. Single crystals of γ-Mn

Experimental Investigation of Microfluidic Feature Manufacturing by Digital Light Processing Stereolithography

2020 ◽  
Author(s):  
Lara Rebaioli ◽  
Irene Fassi
Keyword(s):  
Process Parameters ◽  
Low Cost ◽  
Dimensional Accuracy ◽  
Machine Building ◽  
Single Step ◽  
Main Process ◽  
Single Chip ◽  
Digital Light Processing ◽  
And Performance ◽  
User Friendly

Abstract Lab on Chips (LOCs) are devices, mostly based on microfluidics, that allow to perform one or several chemical, biochemical or biological analysis in a miniaturized format on a single chip. The Additive Manufacturing processes, and in particular the Digital Light Processing stereolithography (DLP-SLA), could quickly produce a complete LOC with high resolution 3D features in a single step, i.e. without the need for assembly processes, and using low cost and user-friendly desktop machines. However, the potential of DLP-SLA to produce non-planar channels or channels with complex sections has not been fully investigated yet. This study proposes a benchmark artifact (including also some channels with their axis lying in a plane parallel to the machine building platform) aiming at assessing the capability and performance of DLP-SLA for manufacturing microfeatures for microfluidic devices. A proper experimental campaign was performed to evaluate the effect of the main process parameters (namely, layer thickness and exposure time) on the process performance. The results pointed out that both the process parameters influence the quality and dimensional accuracy of the analyzed features.

scholarly journals Efficient One-Pot Synthesis of a Hexamethylenetetramine-Doped Cu-BDC Metal-Organic Framework with Enhanced CO2 Adsorption

Nanomaterials ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 1063 ◽  
Author(s):  
Aisha Asghar ◽  
Naseem Iqbal ◽  
Tayyaba Noor ◽  
Majid Ali ◽  
Timothy L. Easun
Keyword(s):  
Co2 Adsorption ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Single Step ◽  
Co2 Uptake ◽  
One Pot ◽  
Amine Functionalized ◽  
Metal Organic ◽  
Thermogravimetric Studies ◽  
Organic Framework

Herein we report a facile, efficient, low cost, and easily scalable route for an amine-functionalized MOF (metal organic framework) synthesis. Cu-BDC⊃HMTA (HMTA = hexamethylenetetramine) has high nitrogen content and improved thermal stability when compared with the previously reported and well-studied parent Cu-BDC MOF (BDC = 1,4-benzenedicarboxylate). Cu-BDC⊃HMTA was obtained via the same synthetic method, but with the addition of HMTA in a single step synthesis. Thermogravimetric studies reveal that Cu-BDC⊃HMTA is more thermally stable than Cu-BDC MOF. Cu-BDC⊃HMTA exhibited a CO2 uptake of 21.2 wt % at 273 K and 1 bar, which compares favorably to other nitrogen-containing MOF materials.

scholarly journals Facile and large-scalable synthesis of low cost hard carbon anode for sodium-ion batteries

2019 ◽  
Vol 14 ◽  
pp. 102404 ◽  
Author(s):  
Ghulam Yasin ◽  
Muhammad Abubaker Khan ◽  
Waheed Qamar Khan ◽  
Tahira Mehtab ◽  
Rashid Mustafa Korai ◽  
...  
Keyword(s):  
Low Cost ◽  
Sodium Ion ◽  
Carbon Anode ◽  
Sodium Ion Batteries ◽  
Hard Carbon ◽  
Scalable Synthesis

scholarly journals Nickel Phosphides Fabricated through a Codeposition–Annealing Technique as Low-Cost Electrocatalytic Layers for Efficient Hydrogen Evolution Reaction

2020 ◽  
Vol 3 (7) ◽  
pp. 6525-6535
Author(s):  
R. Bernasconi ◽  
M. I. Khalil ◽  
C. Iaquinta ◽  
C. Lenardi ◽  
L. Nobili ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Low Cost ◽  
Nickel Phosphides
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