Results 81 to 90 of about 409,435 (303)

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz   +4 more
wiley   +1 more source

Optimization of Preparation Program for Biomass Based Porous Active Carbon by Response Surface Methodology Based on Adsorptive Property

open access: yesCailiao gongcheng, 2017
With waste walnut shell as raw material, biomass based porous active carbon was made by microwave oven method. The effects of microwave power, activation time and mass fraction of phosphoric acid on adsorptive property of biomass based porous active ...
ZHANG Hao   +3 more
doaj   +1 more source

Templated Porous Carbons:  A Review Article

open access: yesIndustrial & Engineering Chemistry Research, 2005
Porous carbons are widely used as industrial adsorbents because of the hydrophobic nature of their surfaces, high surface area, large pore volumes, chemical inertness, good mechanical stability, and good thermal stability. There has been a growing interest in new applications of porous carbons because of their ability to interact with molecules not ...
Sakintuna, Billur, Yürüm, Yuda
openaire   +2 more sources

Assessing soft skills components in science and technology programs within Malaysian Technical Universities [PDF]

open access: yes, 2017
The workforce is a social environment where particular skills are essential in order for workers to perform well, have a competitive edge and succeed in their careers. A soft skill is one of the skills needed in every type of workplace setting.
Lai, Chee Sern   +3 more
core   +3 more sources

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter   +5 more
wiley   +1 more source

Porous Carbon Monoliths Made from Cellulose and Starch

open access: yesC, 2020
Porous carbon monoliths can be used as key components in a variety of applications, such as energy storage, adsorption and catalysis. The preparation of porous carbon monoliths suffers from several limitations, e.g., time-consuming synthesis steps, the ...
Olaf Klepel, Nina Danneberg
doaj   +1 more source

Electrochemical Impedance Imaging via the Distribution of Diffusion Times [PDF]

open access: yes, 2017
We develop a mathematical framework to analyze electrochemical impedance spectra in terms of a distribution of diffusion times (DDT) for a parallel array of random finite-length Warburg (diffusion) or Gerischer (reaction-diffusion) circuit elements.
Bazant, Martin Z., Song, Juhyun
core   +2 more sources

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

open access: yesAdvanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Thermal Methanol Synthesis from CO2 Using Cu/ZnO Catalysts: Insights from First‐Principles Calculations

open access: yesSmall Structures
Catalytic hydrogenation of carbon dioxide to methanol offers a promising avenue for recycling CO2, enhancing environmental sustainability. Cu/ZnO has long been identified as one of the most effective heterogeneous catalysts for this reaction, yet the ...
Cong Xi   +5 more
doaj   +1 more source

Preparation of Carboxymethyl Chitosan based Porous carbon with CuO loading [PDF]

open access: yesE3S Web of Conferences
Because of the excessive carbon dioxide emissions, the greenhouse environmental problem has become a widely research hot. Porous carbon with plentiful of 3D porous stricture and excellent electrochemical performance has attracted more and more attention.
Xu Yuelong, Wang Shasha
doaj   +1 more source

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