Results 111 to 120 of about 4,498,774 (373)

Molecular Simulation of Hydrogen Storage in Ion-Exchanged X Zeolites

open access: yesAdvances in Materials Science and Engineering, 2014
Grand Canonical Monte Carlo (GCMC) method was employed to simulate the adsorption properties of molecular hydrogen on ion-exchanged X zeolites at 100–293 K and pressures up to 10 MPa in this paper.
Xiaoming Du
doaj   +1 more source

The Application of Electrochromic Character of PANI Film in Hydrogen Phosphate Ion Detection

open access: yesInternational Journal of Electrochemical Science, 2013
Excessive emissions of anions severely damaged the ecological balance of water environment. Therefore, anionic online detection played an important role in our lives. Compared to chromatographic technique and colorimetric sensors and fluorescence sensors,
Wen Zhang   +7 more
doaj   +1 more source

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann   +4 more
wiley   +1 more source

2-Aminopyrimidinium nitrate

open access: yesActa Crystallographica Section E, 2010
In the title compound, C4H6N3+·NO3−, the cation is coplanar with the anion (r.m.s. deviation = 0.048 Å), and links to the anion via an N—H...O hydrogen bond, forming an ion pair.
Xiao-Li Cheng, Shan Gao, Seik Weng Ng
doaj   +1 more source

Hydrogen‐Ion‐Titration Studies of Pancreatic Phospholipase A and Its Zymogen [PDF]

open access: bronze, 1972
Lambert H.M. Janssen   +2 more
openalex   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

open access: yesAdvanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan   +9 more
wiley   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

open access: yesAdvanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong   +3 more
wiley   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

A Study of Ion-Ion Hybrid Instability in the Mixed Plasma [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1987
There are more oxygen ions than hydrogen ions in the auroral field zone. We consider both analytic and numerical simulation study of the heating of hydrogen and oxygen ions by auroral electrons.
Soo-Yong Kim
doaj  

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