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Stress Relaxation for Lead Iodide Nucleation in Efficient Perovskite Solar Cells.
Adv Mater
January 2025
Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan, 430072, China.
Porous lead iodide (PbI) film is crucial for the complete reaction between PbI and ammonium salts in sequential-deposition technology so as to achieve high crystallinity perovskite film. Herein, it is found that the tensile stress in tin (IV) oxide (SnO) electron transport layer (ETL) is a key factor influencing the morphology and crystallization of PbI films. Focusing on this, lithium trifluoromethanesulfonate (LiOTf) is used as an interfacial modifier in the SnO/PbI interface to decrease the tensile stress to reduce the necessary critical Gibbs free energy for PbI nuclei formation.
View Article and Find Full Text PDFMesoporous Single-Crystal FeFe(CN)6 Microspheres for Superior Potassium-Ion Storage.
Angew Chem Int Ed Engl
January 2025
Nanjing Normal University, School of Chemistry and Materials Science, CHINA.
Metal hexacyanoferrates (HCFs), also known as Prussian blue analogues, are ideal cathodes for potassium-ion batteries (PIBs) due to their nontoxicity and cost-effectiveness. Nevertheless, obtaining metal HCF cathode materials with both long-term cycling stability and high rate performance remains a daunting challenge. In this study, we present mesoporous single-crystalline iron hexacyanoferrate (MSC-FeHCF) microspheres, featuring a single-crystalline structure that contains interconnected pores spanning the entire crystal lattice.
View Article and Find Full Text PDFSynergetic effects of nano-boehmite and Y nano-zeolite on catalytic cracking of residue oil.
Sci Rep
January 2025
Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran.
Boehmite nanoparticles and NaY nanozeolite were synthesized by co-precipitation and hydrothermal methods, respectively, and characterized by XRD, FT-IR, TG-DTA, BET, and SEM techniques. XRD and BET analyses demonstrated the formation of boehmite nanoparticles with a surface area of 350 m/g and high crystallinity NaY nanozeolite with a surface area of 957 m/g. In order to evaluate the effect of the content of the mesoporous boehmite nanoparticles on the catalytic performance of the Residue Fluid Catalytic Cracking (RFCC) catalyst, alumina active matrix-based and silica inactive matrix-based catalysts were prepared.
View Article and Find Full Text PDFMesoporous Cu Nanoplates with Exposed Cu+ Sites for Efficient Electrocatalytic Transfer Semi-Hydrogenation of Alkynes.
Angew Chem Int Ed Engl
January 2025
Sichuan University, School of Chemistry, 29 Wangjiang Road, 610064, Chengdu, CHINA.
Electrocatalytic transfer alkyne semi-hydrogenation with H2O as hydrogen source is industrially promising for selective electrosynthesis of high value-added alkenes while inhibiting byproduct alkanes. Although great achievements, their development has remarkably restricted by designing atomically sophisticated electrocatalysts. Here, we reported single-crystalline mesoporous copper nanoplates (meso-Cu PLs) as a robust yet highly efficient electrocatalyst for selective alkene electrosynthesis from transfer semi-hydrogenation reaction of alkyne in H2O.
View Article and Find Full Text PDFNanoencapsulation of Living Microbial Cells in Porous Covalent Organic Framework Shells.
ACS Nano
January 2025
Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, Advanced Technology Research Institute (Jinan), Frontiers Science Center for High Energy Material, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
Encapsulating living cells within nanoshells offers an important approach to enhance their stability against environmental stressors and broaden their application scope. However, this often leads to impaired mass transfer at the cell biointerface. Strengthening the protective shell with well-defined, ordered transport channels is crucial to regulating molecular transport and maintaining cell viability and biofunctionality.
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