In situ high-temperature X-ray diffraction, FT-IR and thermal analysis studies of the reaction between natural hydroxyapatite and aluminum powder

Mokhtari, A.; Belhouchet, H.; Guermat, Abdelhak

doi:10.1007/s10973-018-7812-8

Cited by 10 publications

(1 citation statement)

References 62 publications

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“…[137][138] The interface of the electrode and the fluid can be studied by in situ electrochemical measurements while imposing various constraints such as varying the chemical environment. [139][140][141] The experimental data collected by these methods can then be interpreted through established strategies such as bandgap considered electrode selection, [142] dielectric property induced voltage, [143] or electrochemistry. In order to understand the fundamental operating mechanisms, it is crucial to investigate the possible interactions between the HEG device and the hygroscopic materials.…”

Section: Mechanism Studymentioning

confidence: 99%

Hydrovoltaic Electricity Generator with Hygroscopic Materials: A Review and New Perspective

et al. 2023

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The global energy crisis caused by the overconsumption of non‐renewable fuels has prompted researchers to develop alternative strategies for producing electrical energy. In this review, we introduce a fascinating strategy that simply utilizes water, an abundant natural substance throughout the globe and even in air as moisture, as a power source. The concept of the hydrovoltaic electricity generator (HEG) proposed herein involves generating an electrical potential gradient by exposing the two ends of the HEG device to dissimilar physicochemical environments, which leads to the production of an electrical current through the active material. HEGs, with a large variety of viable active materials, have much potential for expansion toward diverse applications including permanent and/or emergency power sources. In this review, we discuss representative HEGs that generate electricity by the mechanisms of diffusion, streaming, and capacitance as case studies for building a fundamental understanding of the electricity generation process. In particular, by comparing the use and absence of hygroscopic materials, we meticulously elucidate HEG mechanism studies to establish active material design principles. We conclude the review with future perspectives on electrode design using conducting nanomaterials, considerations for high performance device construction, and potential impacts of the HEG technology in improving our livelihoods.This article is protected by copyright. All rights reserved

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Section: Mechanism Studymentioning

confidence: 99%

Hydrovoltaic Electricity Generator with Hygroscopic Materials: A Review and New Perspective

et al. 2023

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Effect of phosphate additives on the hydration process of magnesium silicate cements

Tonelli

Martini

Milanesi

et al. 2019

J Therm Anal Calorim

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The role of phosphate additives on the hydration process of magnesium silicate cement pastes was investigated through a multi-technique approach. A MgO/SiO 2 mixture was hydrated for 28 days either in the absence or in the presence of sodium hexametaphosphate, trimetaphosphate or orthophosphate. Information on the kinetics of the hydration reaction was acquired by monitoring the free water index by means of differential scanning calorimetry, while the hydration products were thoroughly investigated by X-ray diffraction, thermogravimetric analysis, Fourier transform infrared spectroscopy, scanning electron microscopy and 29 Si solid-state nuclear magnetic resonance spectroscopy. The overall results provide new insight into the effect of phosphates on the hydration reaction and on the structure of magnesium silicate hydrate cements. All additives showed a plasticizing effect and promoted the formation of the binding phase magnesium silicate hydrate (M-S-H), without significantly altering its structure. Sodium orthophosphate was found to be by far the bestperforming additive, even better than sodium hexametaphosphate, which is commonly used in these cementitious formulations. For the first time, 31 P solid-state NMR investigation allowed orthophosphate ion to be identified as the effective species. Keywords Magnesium silicate hydrate Á Orthophosphate Á Plasticizer Á Hydration kinetics Á Thermal analysis Á MAS NMR A1 Monica Tonelli and Francesca Martini have contributed A2 equally to this work.

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Phosphorylated hollow carbon-based material derived from ZIF-8 and its U(VI) adsorptive performance

Wang,

Cai,

Xiong

et al. 2024

Environ Sci Pollut Res

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In situ high-temperature X-ray diffraction, FT-IR and thermal analysis studies of the reaction between natural hydroxyapatite and aluminum powder

Cited by 10 publications

References 62 publications

Hydrovoltaic Electricity Generator with Hygroscopic Materials: A Review and New Perspective

Hydrovoltaic Electricity Generator with Hygroscopic Materials: A Review and New Perspective

Effect of phosphate additives on the hydration process of magnesium silicate cements

Phosphorylated hollow carbon-based material derived from ZIF-8 and its U(VI) adsorptive performance

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