Hybrid organic-inorganic perovskite (HOIP) ferroelectric materials have great potential for developing self-powered electronic transducers owing to their impressive piezoelectric performance, structural tunability and low processing temperatures. Nevertheless, their inherent brittle and low elastic moduli limit their application in electromechanical conversion. Integration of HOIP ferroelectrics and soft polymers is a promising solution. In this work, a hybrid organic-inorganic rare-earth double perovskite ferroelectric, [RM3HQ]RbPr(NO) (RMHQ = (R)-N-methyl-3-hydroxylquinuclidinium) is presented, which possesses multiaxial nature, ferroelasticity and satisfactory piezoelectric properties, including piezoelectric charge coefficient (d) of 102.3 pC N and piezoelectric voltage coefficient (g) of 680 × 10 V m N. The piezoelectric generators (PEG) based on composite films of [RM3HQ]RbPr(NO)@polyurethane (PU) can generate an open-circuit voltage (V) of 30 V and short-circuit current (I) of 18 µA, representing one of the state-of-the-art PEGs to date. This work has promoted the exploration of new HOIP ferroelectrics and their development of applications in electromechanical conversion devices.
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http://dx.doi.org/10.1002/smll.202306989 | DOI Listing |
ACS Omega
November 2024
Sinopec Key Laboratory of Research and Application of Medical and Hygienic Materials, Sinopec Beijing Research Institute of Chemical Industry Company, Limited, No. 14 Beisanhuan Donglu, Chao Yang District, Beijing 100013, China.
Inorganic layered compounds are an important part of organic-inorganic functional nanocomposites and offer plentiful opportunities and possibilities for synthesizing new-style multifunctional materials because they could be intercalated, exfoliated, and swollen. In recent years, as inorganic layered materials with photoluminescence, layered rare earth hydroxides (LRHs) have been extensively studied. Due to their rich functionalization ways, they have been applied or shown potential application value in many fields such as pollution detection, biomedicine, photoelectric energy storage, and so on.
View Article and Find Full Text PDFNatl Sci Rev
December 2024
Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China.
High-efficiency electrocatalysis could serve as the bridge that connects renewable energy technologies, hydrogen economy and carbon capture/utilization, promising a sustainable future for humankind. It is therefore of paramount significance to explore feasible strategies to modulate the relevant electrocatalytic reactions and optimize device performances so as to promote their large-scale practical applications. Microenvironment regulation at the catalytic interface has been demonstrated to be capable of effectively enhancing the reaction rates and improving the selectivities for specific products.
View Article and Find Full Text PDFInorg Chem
December 2024
Key Laboratory of Polyoxometalate Science of the Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China.
Multinuclear Pr-containing antimonotungstate [Pr(HO)WO(mal)(OAc)(αSbWO)] (, mal = malate anion, OAc = acetate anion), bridged by organic carboxylic acid, was synthesized through a one-pot assembly reaction and structurally characterized. is composed of four [αSbWO] fragments fused together by an organic-inorganic hybrid central [Pr(HO)WO(mal)(OAc)] cluster core through 24 μ-O atoms. Notably, the central cluster comprises unprecedented decanuclear Pr(HO)WO jointly decorated by two types of carboxylic acid ligands.
View Article and Find Full Text PDFInorg Chem
November 2024
Chibi Yuntian New Materials Technology Co., Ltd, Xianning, Hubei 437300, PR China.
Multifunctional materials have long been a popular research area, with organic-inorganic hybrids frequently utilized due to their diverse properties and versatile assembly techniques. In this context, a novel Mn-based organic-inorganic hybrid compound (BTPA)MnBr() was prepared, with strong green photoluminescence, phase transition under thermal stimulation, and two reversible dielectric-state switches. This compound exhibits strong green photoluminescence under ultraviolet excitation, boasting a quantum yield of 44.
View Article and Find Full Text PDFInorg Chem
November 2024
Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, China.
In this work, a dual-ligand functionalized lanthanide-encapsulated selenotungstate [HN(CH)]NaH[Ho(HO)(HPACA)WO(Ac)][SeWO] · 60HO (, HPACA = 2-pyrazinecarboxylic acid, HAc = acetic acid) was successfully acquired by simultaneously incorporating rigid HPACA and flexible Ac ligands to one reaction system. Interestingly, the polyanion [Ho(HO)(HPACA)WO(Ac)][SeWO] of is composed of six trivacant Keggin-type [B-α-SeWO] units interconnected through an organic-inorganic hybrid dual-ligand bimetallic [Ho(HO)(HPACA)WO(Ac)] cluster. Moreover, the @PNMPy film (PNMPy = poly(-methylpyrrole)) was successfully prepared through an electrochemical polymerization strategy.
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