Films and crystalline powder of BiI3 intercalated with ammonia

Preda, N.; Mihuţ, L.; Baibarac, M.; Baltog, I.; Pandele, J.; Andronescu, Corina; Fruth, Victor

doi:10.1016/j.jeurceramsoc.2009.05.046

Cited by 4 publications

(6 citation statements)

References 16 publications

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“…These results suggest that the NH 3 molecule was intercalated into BiI 3 nanosheets by the coordination interaction between Bi 3+ and N atoms of NH 3 as well as the H-bond interactions between H atom of NH 3 and I − anions. 40 This structural information was supported by the PXRD patterns shown in Figure 4b. It can be seen that the PXRD patterns of BiI 3 nanosheets was totally different with and without NH 3 .…”

Section: ■ Results and Discussionmentioning

confidence: 61%

Exceptional High and Reversible Ammonia Uptake by Two Dimension Few-layer BiI₃ Nanosheets

Wang¹,

Song²,

Li³

et al. 2021

ACS Appl. Mater. Interfaces

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The emission of NH3 into atmosphere is seriously harmful for human health and public safety, thus the capture and recovery of NH3 from ammonia emissions is highly desirable. In recent years, many kinds of solid adsorbents have been exploited to absorb NH3. However, these materials do not show the advantages of high uptake capacity and good recyclability at the same time. Here, nontoxic and low cost few-layer BiI3 nanosheets have been prepared from bulk BiI3 powder by a simple and efficient liquid phase exfoliation strategy using green solvents and then applied for the NH3 capture for the first time. The results show that the adsorption capacity of NH3 of BiI3 nanosheets reaches up to 22.6 mmol/g at 1.0 bar and 25 °C, which approaches the record value for NH3 adsorption. Importantly, the NH3 uptake in BiI3 nanosheets is completely reversible and no clear loss in uptake capacity is observed after 10 cycles of adsorption–desorption. Furthermore, the BiI3 nanosheets exhibit remarkable selectivity for the separation of NH3/CO2 at 70 °C with theoretical selectivity coefficient of 700, which is promising for the selective separation of NH3 and CO2 in hot tail gas of some industrial processes. Mechanism studies indicate that such superior NH3 capacity, excellent reversibility and remarkable selectivity are primarily attributed to the Bi3+-NH3 coordination interactions.

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Section: ■ Results and Discussionmentioning

confidence: 61%

Exceptional High and Reversible Ammonia Uptake by Two Dimension Few-layer BiI₃ Nanosheets

Wang¹,

Song²,

Li³

et al. 2021

ACS Appl. Mater. Interfaces

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“…A porous tetrahedrite network was synthesized via the sublimation of dispersed additives during annealing, which simultaneously modulated the microstructure, which differs from conventional synthesis strategies. BiI 3 , a layered semiconductor, well‐known in exciton investigations and semiconductor radiation sensors, [ 45 ] was found to be suitable for assisting in the formation of a unique network structure due to its low sublimation temperature. According to thermodynamic measurements (Figure S1a, Supporting Information), the sublimation of BiI 3 (≈595 K) occurred before its melting (≈685 K).…”

Section: Introductionmentioning

confidence: 99%

Thermoelectric Cu₁₂Sb₄S₁₃‐Based Synthetic Minerals with a Sublimation‐Derived Porous Network

Zhuang

Jiang

et al. 2021

Advanced Materials

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Pores in a solid can effectively reduce thermal conduction, but they are not favored in thermoelectric materials due to simultaneous deterioration of electrical conductivity. Conceivably, creating a porous structure may endow thermoelectric performance enhancement provided that overwhelming reduction of electrical conductivity can be suppressed. This work demonstrates such an example, in which a porous structure is formed leading to a significant enhancement in the thermoelectric figure of merit (zT). By a unique BiI3 sublimation technique, pore networks can be introduced into tetrahedrite Cu12Sb4S13‐based materials, accompanied by changes in their hierarchical structures. The addition of a small quantity of BiI3 (0.7 vol%) results in a ≈72% reduction in the lattice thermal conductivity, whereas the electrical conductivity is improved due to unexpected enhanced carrier mobility. As a result, an enhanced zT of 1.15 at 723 K in porous tetrahedrite and a high conversion efficiency of 6% at ΔT = 419 K in a fabricated segmented single‐leg based on this porous material are achieved. This work offers an effective way to concurrently modulate the electrical and thermal properties during the synthesis of high‐performance porous thermoelectric materials.

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“…Owing to the high toxicity of lead, the current challenge facing PSC research is finding an alternative light absorber. [15] Upon exposure to MA gas, BiI 3 film was intercalated by MA molecules, which results in the formation of an ew BiI 3 -MA phase, as illustrated in Figure 1a.T he black BiI 3 film was converted to ay ellow-colored film after intercalation.T he XRD pattern in Figure 1b shows that the main peak of the initial BiI 3 film is at 12.938. In this case, even thoughac onversion efficiency of 6% was achieved for Snbased PSCs, [5] the rapid oxidation of Sn 2 + to Sn 4 + upon air exposure results in inherenti nstability.…”

mentioning

confidence: 99%

“…[15] Upon exposure to MA gas, BiI 3 film was intercalated by MA molecules, which results in the formation of an ew BiI 3 -MA phase, as illustrated in Figure 1a.T he black BiI 3 film was converted to ay ellow-colored film after intercalation.T he XRD pattern in Figure 1b shows that the main peak of the initial BiI 3 film is at 12.938. Thus, the guest speciesc an easily intercalate into the interlayer spaces and drive the formation of an ew phase.…”

mentioning

confidence: 99%

“…Thus, the guest speciesc an easily intercalate into the interlayer spaces and drive the formation of an ew phase. [15] Upon exposure to MA gas, BiI 3 film was intercalated by MA molecules, which results in the formation of an ew BiI 3 -MA phase, as illustrated in Figure 1a.T he black BiI 3 film was converted to ay ellow-colored film after intercalation.T he XRD pattern in Figure 1b shows that the main peak of the initial BiI 3 film is at 12.938. After MA intercalation,t he peak at 12.938 disappearsa nd a new high-intensity peak at 9.88 emerges,a ttributed to lattice expansion during the intercalation process.…”

mentioning

confidence: 99%

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Fabrication of Lead‐Free (CH₃NH₃)₃Bi₂I₉ Perovskite Photovoltaics in Ethanol Solvent

Yan

et al. 2017

ChemSusChem

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The toxicity of lead present in organohalide perovskites and the hazardous solvent systems used for their synthesis hinder the deployment of perovskite solar cells (PSCs). Herein, an environmentally friendly route toward bismuth-based, lead-free (CH NH ) Bi I perovskites that utilize ethanol as the solvent is described. Using this method, dense and homogeneous microstructures were obtained, compared to the porous, rough microstructures obtained using dimethylformamide. Photovoltaic performances were enhanced, with an open-circuit voltage of 0.84 V measured.

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Films and crystalline powder of BiI3 intercalated with ammonia

Cited by 4 publications

References 16 publications

Exceptional High and Reversible Ammonia Uptake by Two Dimension Few-layer BiI₃ Nanosheets

Exceptional High and Reversible Ammonia Uptake by Two Dimension Few-layer BiI₃ Nanosheets

Thermoelectric Cu₁₂Sb₄S₁₃‐Based Synthetic Minerals with a Sublimation‐Derived Porous Network

Fabrication of Lead‐Free (CH₃NH₃)₃Bi₂I₉ Perovskite Photovoltaics in Ethanol Solvent

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Films and crystalline powder of BiI3 intercalated with ammonia

Cited by 4 publications

References 16 publications

Exceptional High and Reversible Ammonia Uptake by Two Dimension Few-layer BiI3 Nanosheets

Exceptional High and Reversible Ammonia Uptake by Two Dimension Few-layer BiI3 Nanosheets

Thermoelectric Cu12Sb4S13‐Based Synthetic Minerals with a Sublimation‐Derived Porous Network

Fabrication of Lead‐Free (CH3NH3)3Bi2I9 Perovskite Photovoltaics in Ethanol Solvent

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Product

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Exceptional High and Reversible Ammonia Uptake by Two Dimension Few-layer BiI₃ Nanosheets

Exceptional High and Reversible Ammonia Uptake by Two Dimension Few-layer BiI₃ Nanosheets

Thermoelectric Cu₁₂Sb₄S₁₃‐Based Synthetic Minerals with a Sublimation‐Derived Porous Network

Fabrication of Lead‐Free (CH₃NH₃)₃Bi₂I₉ Perovskite Photovoltaics in Ethanol Solvent