Demonstration of Controlled Hydrogen Release Using Rh@GQDs during Hydrolysis of NH3BH3

2021 ◽  
Author(s):  
Weifeng Chen ◽  
Guo Lv ◽  
Jinrun Fu ◽  
Haiyan Ren ◽  
Jialu Shen ◽  
...  
Keyword(s):  
Hydrogen Release ◽  
Hydrolysis Of

Hydrogen generation by both acidic and catalytic hydrolysis of sodium borohydride

2018 ◽  
Vol 5 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Olga V. Netskina ◽  
Tihon N. Filippov ◽  
Oksana V. Komova ◽  
Valentina I. Simagina
Keyword(s):  
Hydrogen Evolution ◽  
Sodium Borohydride ◽  
Hydrogen Generation ◽  
Hydrogen Release ◽  
Catalytic Hydrolysis ◽  
Hydrogen Storage Materials ◽  
Acidic Solutions ◽  
High Concentrations ◽  
Sulfuric And Hydrochloric Acids ◽  
Hydrolysis Of

Abstract Sodium borohydride tablets have been employed as hydrogen-storage materials. Hydrogen release was performed by acidic hydrolysis where solutions of sulfuric and hydrochloric acids were added to the tablets, and by catalytic hydrolysis where water was added tablets of solid-state NaBH4/Co composite. In acidic solutions hydrogen evolution occurred instantaneously, and at high concentrations of acids the releasing hydrogen contained an admixture of diborane. Hydrogen evolution from the solidstate NaBH4/Co composite proceeded at a uniform rate of 13.8±0.1 cm3·min-1, water vapor being the only impurity in the evolving gas.

Copper-cobalt foams as active and stable catalysts for hydrogen release by hydrolysis of sodium borohydride

2016 ◽  
Vol 41 (20) ◽  
pp. 8438-8448 ◽  
Author(s):  
Sónia Eugénio ◽  
Umit B. Demirci ◽  
Teresa Moura Silva ◽  
Maria João Carmezim ◽  
Maria Fátima Montemor
Keyword(s):  
Sodium Borohydride ◽  
Hydrogen Release ◽  
Hydrolysis Of

Hydrogen release from hydrolysis of borazane on Pt- and Ni-based alloy catalysts

2008 ◽  
Vol 33 (10) ◽  
pp. 2462-2467 ◽  
Author(s):  
C YAO ◽  
L ZHUANG ◽  
Y CAO ◽  
X AI ◽  
H YANG
Keyword(s):  
Hydrogen Release ◽  
Hydrolysis Of ◽  
Alloy Catalysts

Hydrogen release by thermolysis of ammonia borane NH3BH3 and then hydrolysis of its by-product [BNHx]

2011 ◽  
Vol 196 (1) ◽  
pp. 279-286 ◽  
Author(s):  
U.B. Demirci ◽  
S. Bernard ◽  
R. Chiriac ◽  
F. Toche ◽  
P. Miele
Keyword(s):  
Ammonia Borane ◽  
Hydrogen Release ◽  
Hydrolysis Of

scholarly journals High-capacity hydrogen release through hydrolysis of NaB3H8

2011 ◽  
Vol 36 (12) ◽  
pp. 7038-7042 ◽  
Author(s):  
Zhenguo Huang ◽  
Xuenian Chen ◽  
Teshome Yisgedu ◽  
Ji-Cheng Zhao ◽  
Sheldon G. Shore
Keyword(s):  
High Capacity ◽  
Hydrogen Release ◽  
Hydrolysis Of

scholarly journals Hydrolysis of Ammonia-Borane over Ni/ZIF-8 Nanocatalyst: High Efficiency, Mechanism, and Controlled Hydrogen Release

2017 ◽  
Vol 139 (33) ◽  
pp. 11610-11615 ◽  
Author(s):  
Changlong Wang ◽  
Jimena Tuninetti ◽  
Zhao Wang ◽  
Chen Zhang ◽  
Roberto Ciganda ◽  
...  
Keyword(s):  
High Efficiency ◽  
Ammonia Borane ◽  
Hydrogen Release ◽  
Hydrolysis Of

scholarly journals The Effect of Graphite and Fe2O3 Addition on Hydrolysis Kinetics of Mg-Based Hydrogen Storage Materials

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Kun Yang ◽  
Hongyun Qin ◽  
Junnan Lv ◽  
Rujun Yu ◽  
Xia Chen ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Conversion Rate ◽  
Composite Powder ◽  
Physical Structure ◽  
Hydrogen Release ◽  
Hydrolysis Kinetics ◽  
Hydrogen Storage Materials ◽  
Storage Materials ◽  
Kinetics Of ◽  
Hydrolysis Of

In this paper, graphite and Fe2O3 are introduced into MgH2 powder by the method of hydrogenation after magnetic grinding. Hydrogen storage materials which composite of MgH2–5 wt.% C and MgH2–5 wt.% C–5 wt.% Fe2O3 are successfully prepared. The physical structure of these materials was analyzed and characterized by XRD, SEM, etc. Furthermore, the influence of graphite and Fe2O3 on the hydrolysis of MgH2 was systematically investigated. The results show that MgH2–C–Fe2O3 composite powder has the fastest hydrogen release rate in municipal drinking water and the highest conversion rate. Graphite and Fe2O3 can effectively reduce the activation energy of the hydrolysis reaction of MgH2 and improve the hydrolysis kinetics of MgH2. The synergistic effect of the coaddition of graphite and Fe2O3 can significantly increase the hydrolysis conversion rate of MgH2 and improve the hydrolysis kinetics.

scholarly journals Effects of Composite Catalyst Co2B/TiO2 on Hydrolysis of NaBH4

2015 ◽  
Vol 9 (1) ◽  
pp. 60-63
Author(s):  
Yong Li ◽  
Yuxin Zhang ◽  
Yuxi Gu ◽  
Yufei Cai ◽  
Ruizhu Zhang ◽  
...  
Keyword(s):  
Hydrogen Generation ◽  
Hydrogen Release ◽  
Generation Rate ◽  
Composite Catalyst ◽  
Percentage Composition ◽  
Release Capacity ◽  
Hydrolysis Of ◽  
Hydrolysis Of Nabh4

For the purpose of improving hydrogen release capacity of NaBH4, hydrogen generation performance of NaBH was catalyzed by Co2B and TiO2 compound with different mole ratio and percentage composition are investigated. The experiment mainly concentrated in the hydrogen generation rate and the hydrogen generation volume. The results indicate that the effects of hydrogen release of NaBH when the proportions and amount of Co2B/TiO2 are not obvious. Changing the proportions and the amount, the amount of hydrogen release by hydrolysis of NaBH4 are between 343- 375ml. However, the study on the rate of hydrogen release finds that the effects of the proportion and amount of the compound catalyst on the rate of hydrogen release are very marked. The rate of hydrogen release of the catalyst samples presents an obvious increase when the amount of Co2B/TiO2 is between 1-4%. Among all the samples of compound catalyst, the rate of hydrogen release of the sample with 5% Co2B/2TiO2 is the largest.

Sign in / Sign up

Export Citation Format

Share Document