Novel Route To Synthesize Complex Metal Sulfides: Hydrothermal Coupled Dissolution−Reprecipitation Replacement Reactions

Xia, Fang; Zhou, Jinwen; Brugger, Joël; Ngothai, Yung; O’Neill, Brian K.; Chen, Guorong; Pring, Allan

doi:10.1021/cm7033883

Cited by 63 publications

(54 citation statements)

References 45 publications

(61 reference statements)

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“…As is given from Table 1, the NiS phases have higher thermal expansion coefficient so upon rapid cooling it contracts more than the glass leaving a small space between the inclusion and the glass. NiS occurs naturally in the form of the mineral Millerite which is the β-form of NiS [32,57]. The α and β phase have different crystal structures, NiS-α has a distorted hexagonal close packed structure with the cations occupying the octahedral positions (NiAs crystal structure) [58] and the NiS-β has a rhombohedral structure [59].…”

Section: Properties Of Nickel Sulfidementioning

confidence: 99%

Spontaneous Fracture in Thermally Strengthened Glass - A Review and Outlook

Karlsson¹

2017

Ceramics - Silikaty

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Section: Properties Of Nickel Sulfidementioning

confidence: 99%

Spontaneous Fracture in Thermally Strengthened Glass - A Review and Outlook

Karlsson¹

2017

Ceramics - Silikaty

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“…[16,17] Exploring the potential of ICDR reactions to explain the common occurrence of violarite as an alteration product of pentlandite in nature, we were able to prepare pure samples of the thiospinels (Ni,Fe) 3 S 4 (violarite) and Co 3 S 4 (linnaeite) from (Fe,Ni) 9 S 8 (pentlandite) and Co 9 S 8 (cobaltpentlandite) precursors. [17,18] In this case pentlandite and violarite both have structures based on cubic closed packed arrays of S atoms, but differ by the distributions of metals over the available interstitial octahedral and tetrahedral sites (Fig. 2).…”

Section: Synthesis Of Thiospinelsmentioning

confidence: 99%

“…Xia et al [9,18,19] found that the Fe/Ni ratio of (Ni,Fe) 3 S 4 could be adjusted by varying the reaction conditions, including temperature (125-145 ºC), pH (1 to 6), and precursor stoichiometry. Between pH 1 and 6 the reaction proceeds via an ICDR reaction, with a very sharp reaction front and porous (Ni,Fe) 3 S 4 product, as the dissolution of the pentlandite precursor is rate-limiting (Fig.…”

Section: Synthesis Of Thiospinelsmentioning

confidence: 99%

“…The key to synthesize 3D ordered arrays of nanocrystals with uniform size and crystallographic orientation is to find a suitable precursor. Putnis et al [50] showed using 18 O tracer that the leucite to analcime reaction proceeds via the ICDR mechanism. Leucite crystals contain inherent 3D ordered networks of nanometer-sized lamellar twins (Fig.…”

Section: Transformation Of Leucite (Kalsi 2 O 6 ) To Analcite (Naalsimentioning

confidence: 99%

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A Novel Route for the Synthesis of Mesoporous and Low-Thermal Stability Materials by Coupled Dissolution-Reprecipitation Reactions: Mimicking Hydrothermal Mineral Formation

Brugger

McFadden

Lenehan

et al. 2010

Chimia

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Replacement reactions ('pseudomorphism') commonly occur in Nature under a large range of conditions (T 25 to >600 ˚C; P 1 to >5 kbar). Whilst mineral replacement reactions are often assumed to proceed by solid-state diffusion of the metal ions through the mineral, many actually proceed via a coupled dissolution and reprecipitation (CDR) mechanism. In such cases, a starting mineral is dissolved into a fluid and this dissolution is coupled with the precipitation of a replacement phase across the reaction front. In cases where there are close relationships between the crystal structures of the parent and newly formed minerals, the replacement can be topotactic (interface-coupled dissolution and reprecipitation). The kinetics and chemistry of the CDR route are fundamentally different from solid-state diffusion and can be exploited i) for the synthesis of materials that are often difficult to synthesise via traditional methods and ii) to obtain materials with unique properties. This review highlights recent research into the use of CDR for such synthetic challenges. Emphasis has been given to i) the use of CDR to synthesise compounds with relatively low thermal stability such as the thiospinel mineral violarite ((Ni,Fe) 3 S 4 ), ii) preliminary work into use of CDR for the production of roquesite (CuInS 2 ), a potentially important photovoltaic component and, iii) examples where the textures resulting from CDR reactions are controlled by the nature and texture of the parent phase and the reaction conditions; these being the formation of micro-porous gold and three-dimensional ordered arrays of nanozeolite of uniform size and crystallographic orientation.

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“…15 This simplifies the data interpretation because hydrothermal reactions are usually complex and a significant change of fluid composition during the course of the reaction can change the mechanism drastically. 3,16,17 To achieve a higher working temperature and pressure, and a larger fluid volume, we have previously constructed a thermosyphon driven flow-through cell and commissioned on Wombat, Australian's new high intensity powder diffractometer at the OPAL research reactor, run by Nuclear Science and Technology Organization ͑ANSTO͒. 18 The cell worked smoothly but the thermosyphon is sensitive to local temperature and air flow variations in the neutron guide hall.…”

Section: Introductionmentioning

confidence: 99%

A large volume cell for in situ neutron diffraction studies of hydrothermal crystallizations

Xia

Qian

Brugger

et al. 2010

Review of Scientific Instruments

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The mechanism of nickel sulfide induced rapid crystallization of highly textured tungsten disulfide ( W S 2 ) thin films: An in situ real-time diffraction study J. Appl. Phys. 103, 063501 (2008) A hydrothermal cell with 320 ml internal volume has been designed and constructed for in situ neutron diffraction studies of hydrothermal crystallizations. The cell design adopts a dumbbell configuration assembled with standard commercial stainless steel components and a zero-scattering Ti-Zr alloy sample compartment. The fluid movement and heat transfer are simply driven by natural convection due to the natural temperature gradient along the fluid path, so that the temperature at the sample compartment can be stably sustained by heating the fluid in the bottom fluid reservoir. The cell can operate at temperatures up to 300°C and pressures up to 90 bars and is suitable for studying reactions requiring a large volume of hydrothermal fluid to damp out the negative effect from the change of fluid composition during the course of the reactions. The capability of the cell was demonstrated by a hydrothermal phase transformation investigation from leucite ͑KAlSi 2 O 6 ͒ to analcime ͑NaAlSi 2 O 6 ·H 2 O͒ at 210°C on the high intensity powder diffractometer Wombat in ANSTO. The kinetics of the transformation has been resolved by collecting diffraction patterns every 10 min followed by Rietveld quantitative phase analysis. The classical Avrami/Arrhenius analysis gives an activation energy of 82.3Ϯ 1.1 kJ mol −1 . Estimations of the reaction rate under natural environments by extrapolations agree well with petrological observations.

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Novel Route To Synthesize Complex Metal Sulfides: Hydrothermal Coupled Dissolution−Reprecipitation Replacement Reactions

Cited by 63 publications

References 45 publications

Spontaneous Fracture in Thermally Strengthened Glass - A Review and Outlook

Spontaneous Fracture in Thermally Strengthened Glass - A Review and Outlook

A Novel Route for the Synthesis of Mesoporous and Low-Thermal Stability Materials by Coupled Dissolution-Reprecipitation Reactions: Mimicking Hydrothermal Mineral Formation

A large volume cell for in situ neutron diffraction studies of hydrothermal crystallizations

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