Excellent synergistic catalytic mechanism of in-situ formed nanosized Mg2Ni and multiple valence titanium for improved hydrogen desorption properties of magnesium hydride

2019 ◽  
Vol 44 (3) ◽  
pp. 1750-1759 ◽  
Author(s):  
Man Chen ◽  
Xuezhang Xiao ◽  
Meng Zhang ◽  
Meijia Liu ◽  
Xu Huang ◽  
...  
Keyword(s):  
Catalytic Mechanism ◽  
Hydrogen Desorption ◽  
Magnesium Hydride

scholarly journals In situ μ+SR measurements on the hydrogen desorption reaction of magnesium hydride

2014 ◽  
Vol 551 ◽  
pp. 012036 ◽  
Author(s):  
I Umegaki ◽  
H Nozaki ◽  
M Harada ◽  
Y Higuchi ◽  
T Noritake ◽  
...  
Keyword(s):  
Hydrogen Desorption ◽  
Magnesium Hydride ◽  
Desorption Reaction

Hydrogen desorption properties of melt-spun and hydrogenated Mg-based alloys using in situ synchrotron X-ray diffraction and TGA

2011 ◽  
Vol 509 ◽  
pp. S629-S632 ◽  
Author(s):  
Siarhei Kalinichenka ◽  
Lars Röntzsch ◽  
Carsten Baehtz ◽  
Thomas Weißgärber ◽  
Bernd Kieback
Keyword(s):  
Hydrogen Desorption ◽  
X Ray Diffraction ◽  
X Ray ◽  
Melt Spun

Reaction pathways for hydrogen desorption from magnesium hydride/hydroxide composites: bulk and interface effects

2010 ◽  
Vol 12 (3) ◽  
pp. 572-577 ◽  
Author(s):  
F. Leardini ◽  
J. R. Ares ◽  
J. Bodega ◽  
J. F. Fernández ◽  
I. J. Ferrer ◽  
...  
Keyword(s):  
Hydrogen Desorption ◽  
Magnesium Hydride ◽  
Reaction Pathways ◽  
Interface Effects

In situ TEM visualization of single atom catalysis in solid-state Na-O2 nanobatteries

2021 ◽  
Author(s):  
Haiming Sun ◽  
Qiunan Liu ◽  
Zhiying Gao ◽  
Lin Geng ◽  
Yanshuai Li ◽  
...  
Keyword(s):  
Solid State ◽  
Catalytic Mechanism ◽  
Single Atom ◽  
In Situ Tem ◽  
Discharge Process ◽  
Catalytic Activities ◽  
Charge Discharge

Single-atom catalysts (SACs) exhibit high catalytic activities in many systems including metal-air batteries. However, the fundamental catalytic mechanism of SACs during charge/discharge process are still unclear. Herein, we report a...

Electrochemical catalytic mechanism of N-doped graphene for enhanced H2O2 yield and in-situ degradation of organic pollutant

2019 ◽  
Vol 245 ◽  
pp. 583-595 ◽  
Author(s):  
Pei Su ◽  
Minghua Zhou ◽  
Xiaoye Lu ◽  
Weilu Yang ◽  
Gengbo Ren ◽  
...  
Keyword(s):  
Catalytic Mechanism ◽  
Organic Pollutant ◽  
Doped Graphene ◽  
In Situ Degradation

scholarly journals Methanol conversion on borocarbonitride catalysts: Identification and quantification of active sites

2020 ◽  
Vol 6 (26) ◽  
pp. eaba5778 ◽  
Author(s):  
Xuefei Zhang ◽  
Pengqiang Yan ◽  
Junkang Xu ◽  
Fan Li ◽  
Felix Herold ◽  
...  
Keyword(s):  
Active Sites ◽  
Density Functional ◽  
Catalytic Mechanism ◽  
Reaction Pathway ◽  
Methanol Conversion ◽  
Kinetic Measurements ◽  
Catalytic Systems ◽  
X Ray Absorption ◽  
Further Development

Borocarbonitrides (BCNs) have emerged as highly selective catalysts for the oxidative dehydrogenation (ODH) reaction. However, there is a lack of in-depth understanding of the catalytic mechanism over BCN catalysts due to the complexity of the surface oxygen functional groups. Here, BCN nanotubes with multiple active sites are synthesized for oxygen-assisted methanol conversion reaction. The catalyst shows a notable activity improvement for methanol conversion (29%) with excellent selectivity to formaldehyde (54%). Kinetic measurements indicate that carboxylic acid groups on BCN are responsible for the formation of dimethyl ether, while the redox catalysis to formaldehyde occurs on both ketonic carbonyl and boron hydroxyl (B─OH) sites. The ODH reaction pathway on the B─OH site is further revealed by in situ infrared, x-ray absorption spectra, and density functional theory. The present work provides physical-chemical insights into the functional mechanism of BCN catalysts, paving the way for further development of the underexplored nonmetallic catalytic systems.

The catalytic mechanism of the Au@TiO2−x/ZnO catalyst towards a low-temperature water-gas shift reaction

2020 ◽  
Vol 10 (3) ◽  
pp. 768-775
Author(s):  
Ning Liu ◽  
Pan Yin ◽  
Ming Xu ◽  
Yusen Yang ◽  
Shaomin Zhang ◽  
...  
Keyword(s):  
Density Functional ◽  
Catalytic Mechanism ◽  
Density Functional Theory Calculation ◽  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Functional Theory ◽  
Shift Reaction ◽  
Water Gas ◽  
Theory Calculation

A redox mechanism towards the water-gas shift reaction was certified based on in situ/operando experiments and density functional theory calculation studies.

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