Results 91 to 100 of about 677,911 (296)

The sustainable global energy economy: Hydrogen or silicon?

open access: yes, 2008
A sustainable global silicon energy economy is proposed as a potential alternative to the hydrogen economy. This first visualisation of a silicon energy economy is based on largescale and carbon-neutral metallic silicon production from major smelters ...
Bardsley, W. Earl
core   +1 more source

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

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

open access: yesAdvanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold   +2 more
wiley   +1 more source

Hydrogen transport and the spatial requirements of renewable energy [PDF]

open access: yes, 2009
Unlike oil and coal, which are compressed forms of energy, renewable energy requires unusually large land areas. This article calculates the consequences of a switch to hydrogen-cell vehicles powered by electricity from wind turbines. It then re-does the
Oswald, James I.   +2 more
core  

Hydrogen evolution on Pd modified CoCuZn and CoMnZn cathodes

open access: yes, 2018
Hydrogen evolution reaction (HER) was studied on four types of alkaline leached cathodes (CoCuZn/C, CoCuZn-Pd/C, CoMnZn/C and CoMnZn-Pd/C) in 1 M KOH solution at 25 degrees C.
Döner, Ali
core   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu   +10 more
wiley   +1 more source

Fourth-Generation Fluid Effect In Geothermal-Based Hydrogen Production Combined System

open access: yes
International Journal Of Hydrogen EnergyIn this study, hydrogen production using a Proton Exchange Membrane Electrolyser (PEME) integrated with a geothermal based dual Organic Rankine Cycle (ORC) designed using different organic fluids is investigated ...

core   +1 more source

DEVELOPMENT AND PERFORMANCE ASSESSMENT OF INTEGRATED RENEWABLE ENERGY SYSTEM WITH HYDROGEN STORAGE FOR AUTONOMOUS AND MOBILE 3D PRINTING SYSTEM

open access: yes, 2022
BAU; et al.; INOGEN; Republic of Turkey, Ministry of Energy and Natural Resources; TENMARK; Turkish Airlines23rd World Hydrogen Energy Conference: Bridging Continents by H2, WHEC 2022 -- 26 June 2022 through 30 June 2022 -- Istanbul -- 1861763D concrete ...
Koc, M., Khan, S.A.
core  

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Hydrogen Energy

open access: yes, 2011
Hydrogen is the simplest element. An atom of hydrogen consists of only one proton and one electron. It's also the most plentiful element in the universe. Despite its simplicity and abundance, hydrogen doesn't occur naturally as a gas on the Earth - it's always combined with other elements.
Tushar K. Ghosh, Mark A. Prelas
openaire   +3 more sources

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