Bis-Imidazole Methane Ligated Ruthenium(II) Complexes: Synthesis, Characterization, and Catalytic Activity for Hydrogen Production from Formic Acid in Water

2021 ◽  
Author(s):  
Soumyadip Patra ◽  
Hemanta Deka ◽  
Sanjay K. Singh
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Production ◽  
Formic Acid

AgPd@Pd/TiO2 nanocatalyst synthesis by microwave heating in aqueous solution for efficient hydrogen production from formic acid

2015 ◽  
Vol 3 (20) ◽  
pp. 10666-10670 ◽  
Author(s):  
Masashi Hattori ◽  
Daisuke Shimamoto ◽  
Hiroki Ago ◽  
Masaharu Tsuji
Keyword(s):  
Aqueous Solution ◽  
Catalytic Activity ◽  
Hydrogen Production ◽  
Formic Acid ◽  
Microwave Heating ◽  
High Catalytic Activity

AgPd@Pd nanocatalysts loaded on TiO2 were fabricated in aqueous solution using MW heating to suppress alloying for high catalytic activity.

Enhancement of catalytic activity of AgPd@Pd/TiO2 nanoparticles under UV and visible photoirradiation

2016 ◽  
Vol 4 (38) ◽  
pp. 14649-14656 ◽  
Author(s):  
Masaharu Tsuji ◽  
Daisuke Shimamoto ◽  
Keiko Uto ◽  
Masashi Hattori ◽  
Hiroki Ago
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Production ◽  
Formic Acid ◽  
Tio2 Nanoparticles ◽  
Production Rate ◽  
Room Temperature ◽  
Acid Decomposition ◽  
Hydrogen Production Rate ◽  
Formic Acid Decomposition

The hydrogen production rate of AgPd@Pd/TiO2 nanocatalysts from formic acid decomposition was enhanced by 50–60% at room temperature under photoirradiation.

A PdAg-CeO2 nanocomposite anchored on mesoporous carbon: a highly efficient catalyst for hydrogen production from formic acid at room temperature

2019 ◽  
Vol 7 (37) ◽  
pp. 21438-21446 ◽  
Author(s):  
Zhujun Zhang ◽  
Yixing Luo ◽  
Shiwen Liu ◽  
Qilu Yao ◽  
Shaojun Qing ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Production ◽  
Formic Acid ◽  
Mesoporous Carbon ◽  
Room Temperature ◽  
High Catalytic Activity ◽  
Efficient Catalyst ◽  
Highly Efficient

Herein, CeO2-modified PdAg alloy nanocomposites were anchored on mesoporous carbon, showing exceedingly high catalytic activity for HCOOH dehydrogenation at room temperature.

scholarly journals Hydrogen Production from Formic Acid over Au Catalysts Supported on Carbon: Comparison with Au Catalysts Supported on SiO2 and Al2O3

Catalysts ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 376 ◽  
Author(s):  
Dmitri A. Bulushev ◽  
Vladimir I. Sobolev ◽  
Larisa V. Pirutko ◽  
Anna V. Starostina ◽  
Igor P. Asanov ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Production ◽  
Formic Acid ◽  
Density Functional ◽  
Carbon Surface ◽  
Metallic State ◽  
Tem Analysis ◽  
Oxide Supports ◽  
Mean Size ◽  
The Difference

Characteristics and catalytic activity in hydrogen production from formic acid of Au catalysts supported on porous N-free (Au/C) and N-doped carbon (Au/N-C) have been compared with those of Au/SiO2 and Au/Al2O3 catalysts. Among the catalysts examined, the Au/N-C catalyst showed the highest Au mass-based catalytic activity. The following trend was found at 448 K: Au/N-C > Au/SiO2 > Au/Al2O3, Au/C. The trend for the selectivity in hydrogen production was different: Au/C (99.5%) > Au/Al2O3 (98.0%) > Au/N-C (96.3%) > Au/SiO2 (83.0%). According to XPS data the Au was present in metallic state in all catalysts after the reaction. TEM analysis revealed that the use of the N-C support allowed obtaining highly dispersed Au nanoparticles with a mean size of about 2 nm, which was close to those for the Au catalysts on the oxide supports. However, it was by a factor of 5 smaller than that for the Au/C catalyst. The difference in dispersion could explain the difference in the catalytic activity for the carbon-based catalysts. Additionally, the high activity of the Au/N-C catalyst could be related to the presence of pyridinic type nitrogen on the N-doped carbon surface, which activates the formic acid molecule forming pyridinium formate species further interacting with Au. This was confirmed by density functional theory (DFT) calculations. The results of this study may assist the development of novel Au catalysts for different catalytic reactions.

g-C3N4 supported metal (Pd, Ag, Pt) catalysts for hydrogen-production from formic acid

2018 ◽  
Vol 42 (12) ◽  
pp. 9449-9454 ◽  
Author(s):  
Xiaotong Liu ◽  
Penghe Su ◽  
Ya Chen ◽  
Baolin Zhu ◽  
Shoumin Zhang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Production ◽  
Formic Acid ◽  
High Catalytic Activity ◽  
Pt Catalysts ◽  
Supported Metal

Pd/g-C3N4 with d–π interaction between Pd NPs and g-C3N4 with a π-conjugated system shows high catalytic activity in the dehydrogenation of FA.

Photocatalytic hydrogen generation using mesoporous silicon nanoparticles: influence of magnesiothermic reduction conditions and nanoparticle aging on the catalytic activity

Nanoscale ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 2685-2692
Author(s):  
Isabel S. Curtis ◽  
Ryan J. Wills ◽  
Mita Dasog
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Production ◽  
Silicon Nanoparticles ◽  
Hydrogen Generation ◽  
Oxide Content ◽  
Magnesiothermic Reduction ◽  
Mesoporous Silicon ◽  
High Crystallinity ◽  
Photocatalytic Hydrogen Generation

High crystallinity, low oxide content, and low sintering lead to optimally performing mesoporous Si photocatalysts for solar-driven hydrogen production.

scholarly journals Strategic examination of the classical catalysis of formic acid decomposition for intermittent hydrogen production, storage and supply: A review

2021 ◽  
Vol 45 ◽  
pp. 101078
Author(s):  
Samuel Eshorame Sanni ◽  
Peter Adeniyi Alaba ◽  
Emeka Okoro ◽  
Moses Emetere ◽  
Babalola Oni ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Formic Acid ◽  
Acid Decomposition ◽  
Formic Acid Decomposition

scholarly journals A Process for Hydrogen Production from the Catalytic Decomposition of Formic Acid over Iridium—Palladium Nanoparticles

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3258
Author(s):  
Hamed M. Alshammari ◽  
Mohammad Hayal Alotaibi ◽  
Obaid F. Aldosari ◽  
Abdulellah S. Alsolami ◽  
Nuha A. Alotaibi ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Formic Acid ◽  
Activated Charcoal ◽  
Palladium Nanoparticles ◽  
Room Temperature ◽  
Catalytic Decomposition ◽  
Conversion Yield ◽  
Production Of Hydrogen ◽  
Commercial Applications

The present study investigates a process for the selective production of hydrogen from the catalytic decomposition of formic acid in the presence of iridium and iridium–palladium nanoparticles under various conditions. It was found that a loading of 1 wt.% of 2% palladium in the presence of 1% iridium over activated charcoal led to a 43% conversion of formic acid to hydrogen at room temperature after 4 h. Increasing the temperature to 60 °C led to further decomposition and an improvement in conversion yield to 63%. Dilution of formic acid from 0.5 to 0.2 M improved the decomposition, reaching conversion to 81%. The reported process could potentially be used in commercial applications.

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