Photocatalytic hydrogen generation from hydriodic acid using methylammonium lead iodide in dynamic equilibrium with aqueous solution

Nature Energy ◽  
2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Sunghak Park ◽  
Woo Je Chang ◽  
Chan Woo Lee ◽  
Sangbaek Park ◽  
Hyo-Yong Ahn ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Generation ◽  
Dynamic Equilibrium ◽  
Hydriodic Acid ◽  
Lead Iodide ◽  
Photocatalytic Hydrogen Generation ◽  
Methylammonium Lead Iodide

scholarly journals Synthesis of n-Alkoxy Derivatives of Layered Perovskite-Like Niobate HCa2Nb3O10 and Study of Their Photocatalytic Activity for Hydrogen Production from an Aqueous Solution of Methanol

Catalysts ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 897
Author(s):  
Vladimir V. Voytovich ◽  
Sergey A. Kurnosenko ◽  
Oleg I. Silyukov ◽  
Ivan A. Rodionov ◽  
Alexander N. Bugrov ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Photocatalytic Activity ◽  
Hydrogen Generation ◽  
Pt Nanoparticles ◽  
Layered Compounds ◽  
Layered Perovskite ◽  
Primary Alcohols ◽  
Absorption Region ◽  
Photocatalytic Hydrogen Generation ◽  
Alkoxy Groups

A series of hybrid inorganic–organic niobates HCa2Nb3O10×ROH, containing n-alkoxy groups of primary alcohols (R = Me, Et, Pr, Bu, Hx, and Dc) grafted in the interlayer space, has been studied for the first time in relation to photocatalytic hydrogen generation from a model 1 mol % aqueous solution of methanol under ultraviolet irradiation. Photocatalytic activity was measured both for bare samples and for their composites with Pt nanoparticles as a cocatalyst. The advanced measurement scheme allowed monitoring the volume concentration of a sample in a suspension during the experiment, its pH, and possible exfoliation of layered compounds into nanolayers. In the series of n-alkoxy derivatives, the maximum rate of hydrogen evolution was achieved over a Pt-loaded ethoxy derivative HCa2Nb3O10×EtOH/Pt. Its apparent quantum efficiency of 20.6% in the 220–350 nm range was found not to be caused by changes in the light absorption region or specific surface area upon ethanol grafting. Moreover, the amounts of hydrogen released during the measurements significantly exceeded those of interlayer organic components, indicating that hydrogen is generated from the reaction solution rather than from the hybrid material.

Direct synthesis of all-inorganic heterostructured CdSe/CdS QDs in aqueous solution for improved photocatalytic hydrogen generation

2017 ◽  
Vol 5 (21) ◽  
pp. 10365-10373 ◽  
Author(s):  
Zhi-Jun Li ◽  
Xiang-Bing Fan ◽  
Xu-Bing Li ◽  
Jia-Xin Li ◽  
Fei Zhan ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Generation ◽  
Direct Synthesis ◽  
Photocatalytic Hydrogen Generation ◽  
Cds Qds

A facile aqueous approach is developed to synthesize heterostructured CdSe/CdS QDs for advanced hydrogen photosynthesis.

Mechanism of Photocatalytic Hydrogen Generation by a Polypyridyl-Based Cobalt Catalyst in Aqueous Solution

2014 ◽  
Vol 54 (2) ◽  
pp. 646-657 ◽  
Author(s):  
Alexander Rodenberg ◽  
Margherita Orazietti ◽  
Benjamin Probst ◽  
Cyril Bachmann ◽  
Roger Alberto ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Cobalt Catalyst ◽  
Hydrogen Generation ◽  
Photocatalytic Hydrogen Generation

Properties of methylammonium lead iodide peerovskite single crystals

2017 ◽  
Vol 58 (8) ◽  
Author(s):  
E. S. Yudanova ◽  
◽  
T. A. Duda ◽  
O. E. Tereshchenko ◽  
O. I. Semenova ◽  
...  
Keyword(s):  
Single Crystals ◽  
Lead Iodide ◽  
Methylammonium Lead Iodide

Ferroelectric domains in methylammonium lead iodide perovskite solar cells

2018 ◽  
Author(s):  
Holger Röhm ◽  
Tobias Leonhard ◽  
Michael J. Hoffmann ◽  
Alexander Colsmann
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Lead Iodide ◽  
Ferroelectric Domains ◽  
Methylammonium Lead Iodide

The impact of metal ions doping on the defect chemistry of methylammonium lead iodide

2018 ◽  
Author(s):  
Nga Phung ◽  
Antonio Abate ◽  
Daniele Meggiolaro ◽  
Filippo De Angelis ◽  
Roberto Felix Duarte ◽  
...  
Keyword(s):  
Metal Ions ◽  
Defect Chemistry ◽  
Lead Iodide ◽  
Methylammonium Lead Iodide ◽  
The Impact

Guanidinium/Methylammonium Lead Iodide Perovskite: An Unexplored Avenue for Stable and 20% Efficient Solar Cells

2018 ◽  
Author(s):  
Gustavo de Miguel ◽  
Alexander Davis Jodlowski ◽  
Cristina Roldán-Carmona ◽  
Luis Camacho Delgado ◽  
Mohammad Khaja Nazeeruddin
Keyword(s):  
Solar Cells ◽  
Lead Iodide ◽  
Methylammonium Lead Iodide

Batch Precipitation of Lead Iodide

1994 ◽  
Vol 59 (6) ◽  
pp. 1301-1304
Author(s):  
Jaroslav Nývlt ◽  
Stanislav Žáček
Keyword(s):  
Aqueous Solution ◽  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Crystal Size ◽  
Lead Nitrate ◽  
Lead Iodide ◽  
Constant Rate ◽  
Mean Size ◽  
The Mean

Lead iodide was precipitated by a procedure in which an aqueous solution of potassium iodide at a concentration of 0.03, 0.10 or 0.20 mol l-1 was stirred while an aqueous solution of lead nitrate at one-half concentration was added at a constant rate. The mean size of the PbI2 crystals was determined by evaluating the particle size distribution, which was measured sedimentometrically. The dependence of the mean crystal size on the duration of the experiment exhibited a minimum for any of the concentrations applied. The reason for this is discussed.

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