Results 41 to 50 of about 150,422 (280)

Green coal and lubricant via hydrogen-free hydrothermal liquefaction of biomass

Nature Communications
Biocrude derived from biomass via hydrothermal liquefaction (HTL) is a sustainable substitute for petroleum to obtain energy and biochemicals. Upgrading biocrude inevitably faces the trade-off between consuming large amounts of hydrogen via hydrotreating
Maojiong Cao, Reaihan E, Changbin Yuan, Lasse Aistrup Rosendahl, Yuanhui Zhang, Charles Chunbao Xu, Yulong Wu, Deliang Kong, Yingxian Wang, Jiaming Li, Zhidan Liu   +10 more
doaj   +1 more source

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source

The Progress of Autoignition of High-Pressure Hydrogen Gas Leakage: A Comprehensive Review

Fire
As a paradigm of clean energy, hydrogen is gradually attracting global attention. However, its unique characteristics of leakage and autoignition pose significant challenges to the development of high-pressure hydrogen storage technologies.
Gan Cui, Yixuan Li, Di Wu, Hongwei Li, Huan Liu, Xiao Xing, Jianguo Liu   +6 more
doaj   +1 more source

Spectroscopic Evidence for the Specific Na+ and K+ Interactions with the Hydrogen-bonded Water Molecules at the Electrolyte Aqueous Solution Surfaces

, 2008
Sum frequency generation vibrational spectra of the water molecules at the NaF and KF aqueous solution surfaces showed significantly different spectral features and different concentration dependence.
Adamson A. W., Hong-fei Wang, Hong-tao Bian, Lide D. R., Ran-ran Feng, Yuan Guo   +5 more
core   +1 more source

Supermassive black hole formation during the assembly of pre-galactic discs [PDF]

, 2006
In this paper we discuss the evolution of gravitationally unstable pre-galactic discs that result from the collapse of haloes at high redshift $z \approx 10$ or so, which have not yet been enriched by metals.
Balbus, G. Lodato, P. Natarajan
core   +2 more sources

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Rational Fine‐Tuning of MOF Pore Metrics: Enhanced SO2 Capture and Sensing with Optimal Multi‐Site Interactions

Advanced Functional Materials, EarlyView.
A pore tuning strategy to amplify the multi‐site MOF‐SO2 interactions is proposed to achieve an enhanced trace SO2 capture and chemiresistive sensing in highly stable isostructural DMOFs by annelating benzene rings. This work provides a facile strategy to achieve tailor‐made stable MOF materials for specific multifunctional applications.
Shanghua Xing, Abdulrahman Mohabbat, István Boldog, Jens Möllmer, Marcus Lange, Yulyan Haiduk, Tobias Heinen, Vladimir Pankov, Oliver Weingart, Christoph Janiak   +9 more
wiley   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

Advanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr, Alexander Biewald, Andre Mähringer, Thaddäus J. Koller, Peter Mayer, Markus Döblinger, Achim Hartschuh, Dana D. Medina   +7 more
wiley   +1 more source

The impact of chaotic dynamic magnetic field on hydrogen production through water electrolysis

South African Journal of Chemical Engineering
Green hydrogen obtained from green water electrolysis is a promising sustainable energy carrier. However, many technical burdens still presents including the electrocatalyst material.
Purnami Purnami, Willy Satrio Nugroho, Vivi Nurhadianty, Sapriesty Nainy Sari, Yepy Komaril Sofi’i, ING. Wardana   +5 more
doaj   +1 more source

Dark Matter on Galactic Scales (or the Lack Thereof)

, 2004
This paper presents a brief review of the evidence for dark matter in the Universe on the scales of galaxies. In the interests of critically and objectively testing the dark matter paradigm on these scales, this evidence is weighed against that from the ...
Merrifield, M. R.
core   +1 more source