Thermal Wet Decomposition of Prussian Blue: Implications for Prebiotic Chemistry

Ruíz-Bermejo, Marta; Rogero, Celia; Menor‐Salván, César; Osuna‐Esteban, Susana; Martín‐Gago, José A.; Veintemillas-Verdaguer, Sabino

doi:10.1002/cbdv.200900024

Cited by 29 publications

(7 citation statements)

References 43 publications

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“…The formation of the aforementioned organic phases from PB (e.g. urea) has been reported earlier during thermal wet decomposition under inert atmosphere by Ruiz-Bermejo et al (2009).…”

Section: Resultssupporting

confidence: 60%

From Prussian blue to iron carbides: high-temperature XRD monitoring of thermal transformation under inert gases

2017

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The thermal behavior and decomposition reaction of Prussian blue (PB) (Fe43+[Fe2+(CN)6]3·xH2O) was studied under inert atmosphere of argon by simultaneous thermogravimetry and differential scanning calorimetry, from room temperature up to 900 °C, with a heating rate of 5 K min−1. Parallel to the thermogravimetric measurements, the thermal process was monitored by in situ X-ray powder diffraction (XRD) technique under nitrogen atmosphere. The thermogravimetric data show six steps, corresponding to different stages of the decomposition reaction; comparable results are also obtained by in situ XRD. In addition, a set of PB samples heated up to selected temperatures (190, 300, 370, 540, 680, and 790 °C) were ex situ analyzed by powder XRD and Mössbauer spectroscopy. It is found that PB exhibits a negative thermal expansion prior to the water release from its crystalline lattice. Above 300 °C, the decomposition is based on the release of cyanogen gas from the PB structure. At 370 °C, a cubic iron cyanide compound is formed, while at higher temperatures several iron carbides were found. The subsequent thermal treatment of these carbides leads to the formation of metallic iron and graphite.

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“…The formation of the aforementioned organic phases from PB (e.g. urea) has been reported earlier during thermal wet decomposition under inert atmosphere by Ruiz-Bermejo et al (2009).…”

Section: Resultssupporting

confidence: 60%

From Prussian blue to iron carbides: high-temperature XRD monitoring of thermal transformation under inert gases

2017

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“…The characteristic sharp peak of the Fe-CN stretching vibration at 2072 cm −1 in the CNF/PB FT-IR spectrum confirms the presence of PB. The peaks at 501 cm −1 and 594 cm −1 correspond to the metal-ligand bonds in the PB3839404142. Note here that the C-O and the C-O-C stretching bonds in the CNF remain almost the same in both the CNF-ferric (III) complex and the CNF/PB complex, indicating that the ring structure of the CNF did not change.…”

Section: Resultsmentioning

confidence: 83%

Cellulose nanofiber backboned Prussian blue nanoparticles as powerful adsorbents for the selective elimination of radioactive cesium

Vipin

Fugetsu

Sakata

et al. 2016

Sci Rep

114

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On 11 March 2011, the day of the unforgettable disaster of the 9 magnitude Tohoku earthquake and quickly followed by the devastating Tsunami, a damageable amount of radionuclides had dispersed from the Fukushima Daiichi’s damaged nuclear reactors. Decontamination of the dispersed radionuclides from seawater and soil, due to the huge amounts of coexisting ions with competitive functionalities, has been the topmost difficulty. Ferric hexacyanoferrate, also known as Prussian blue (PB), has been the most powerful material for selectively trapping the radioactive cesium ions; its high tendency to form stable colloids in water, however, has made PB to be impossible for the open-field radioactive cesium decontamination applications. A nano/nano combinatorial approach, as is described in this study, has provided an ultimate solution to this intrinsic colloid formation difficulty of PB. Cellulose nanofibers (CNF) were used to immobilize PB via the creation of CNF-backboned PB. The CNF-backboned PB (CNF/PB) was found to be highly tolerant to water and moreover, it gave a 139 mg/g capability and a million (106) order of magnitude distribution coefficient (Kd) for absorbing of the radioactive cesium ion. Field studies on soil and seawater decontaminations in Fukushima gave satisfactory results, demonstrating high capabilities of CNF/PB for practical applications.

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“…Cyanide could reach high concentrations in these small pools through evaporation or complexation with metals such as iron. Metal complexation is particularly interesting as it would not only allow for the accumulation of cyanide, but also allow for its slow release from these organic “minerals” to be utilized for key prebiotic reactions . Thus, we decided to investigate the possibility that the presence of cyanide ions would further alter the availability of phosphate, perhaps by forming a complex with the iron of the iron phosphate minerals.…”

Section: Resultsmentioning

confidence: 99%

A Stark Contrast to Modern Earth: Phosphate Mineral Transformation and Nucleoside Phosphorylation in an Iron‐ and Cyanide‐Rich Early Earth Scenario

et al. 2019

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Organophosphates were likely an important class of prebiotic molecules.However,their presence on the early Earth is strongly debated because the low availability of phosphate, which is generally assumed to have been sequestered in insoluble calcium and iron minerals,i sw idely viewed as am ajor barrier to organophosphate generation. Herein, we demonstrate that cyanide (an essential prebiotic precursor) and urea-based solvents could promote nucleoside phosphorylation by transforming insoluble phosphate minerals in a"warm little pond" scenario into more soluble and reactive species. Our results suggest that cyanide and its derivatives (metal cyanide complexes,urea, ammonium formate,and formamide) were key reagents for the participation of phosphorus in chemical evolution. These results allowustopropose aholistic scenario in which an evaporitic environment could concentrate abiotically formed organics and transform the underlying minerals,a llowing significant organic phosphorylation under plausible prebiotic conditions. Supportinginformation and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.

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Thermal Wet Decomposition of Prussian Blue: Implications for Prebiotic Chemistry

Cited by 29 publications

References 43 publications

From Prussian blue to iron carbides: high-temperature XRD monitoring of thermal transformation under inert gases

From Prussian blue to iron carbides: high-temperature XRD monitoring of thermal transformation under inert gases

Cellulose nanofiber backboned Prussian blue nanoparticles as powerful adsorbents for the selective elimination of radioactive cesium

A Stark Contrast to Modern Earth: Phosphate Mineral Transformation and Nucleoside Phosphorylation in an Iron‐ and Cyanide‐Rich Early Earth Scenario

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