نتایج جستجو برای: nano bi2o3

تعداد نتایج: 51219  

Journal: :ACS omega 2023

Porous Bi2O3–Bi2S3 composite sheets were constructed through a combinational methodology of chemical bath deposition and hydrothermal reaction. The Na2S precursor concentration in the solution was varied to understand correlation between vulcanization degree structure evolution porous sheets. control etching rate Bi2O3 sheet template regrowth Bi2S3 crystallites via suitable sulfide during react...

Journal: :Journal of Inorganic and Organometallic Polymers and Materials 2021

This work aimed to investigate the impact of Lead-fluoride based glasses via theoretical and simulation techniques on mechanical radiation shielding parameters. Accordingly, Bi2O3 was blended with TeO2–B2O3–PbF2 by using melt-quenching method. Using Fluka Monte Carlo code, properties have measured. Moreover, Comparatively higher density PbF80 = 6.163 g/cm3 80 mol % Bi2O3, greater µ, µm Zeff low...

پایان نامه :دانشگاه تربیت معلم - تبریز - دانشکده علوم پایه 1391

چکیده: هدایتگرهای سریع یونی در تحقیقات اخیر به خاطر خواص فیزیکی جالب وشگفت انگیزشان بسیار مورد توجه قرار گرفته اند. هدایت یونی بالا در یک جامد کریستالی توسط بی نظم کننده هایی مانند عناصر لانتانیدی به دست می آید.اکسید بیسموت یکی از کریستال های چند فازی می باشد که ازجمله فازهای شناخته شده آن ?، ?، ? و ? می باشند. این ترکیب به عنوان یک ترکیب پر کاربرد در زمینه های گوناگون کاتالیستی، سنسورهای گازی...

In this work, we report synthesis and characterization of Bi2O3 nanoparticles loaded on mesoporous MCM-41 nanoparticles by a simple solid-state dispersion (SSD) method. Monoclinic bismuth oxide nanoparticles were prepared by polyacrylamide gel method and used as loading materials on the prepared mesoporous MCM-41 as a supporting material. Fourier transform infrared spectroscopy (FT-IR), X-ray p...

Journal: :Chinese Journal of Catalysis 2022

Bismuth-based photocatalysts are a class of excellent visible-light photocatalysts; however, their redox activity is relatively poor and the efficiency photogenerated carrier separation low, limiting development application in field photocatalysis. To address these issues, series polyoxometalate PW12O403–-doped Bi2O3–x/Bi Schottky PW12@Bi2O3–x/Bi-n (PBOB-n, where n amount NaBH4, i.e., 6, 12, 18...

Journal: :SusMat 2023

Upgrading of atmospheric CO2 into high-value-added acetate using renewable electricity via electrocatalysis solely remains a great challenge. Here, inspired by microbial synthesis biocatalysts, we present coupled system to produce from bridging inorganic with through formate intermediates. A 3D Bi2O3@CF integrated electrode an ice-sugar gourd shape was fabricated straightforward hydrothermal st...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

in this work, we report synthesis and characterization of bi2o3 nanoparticles loaded on mesoporous mcm-41 nanoparticles by a simple solid-state dispersion (ssd) method. monoclinic bismuth oxide nanoparticles were prepared by polyacrylamide gel method and used as loading materials on the prepared mesoporous mcm-41 as a supporting material. fourier transform infrared spectroscopy (ft-ir), x-ray p...

Journal: :Applied Physics A 2022

Abstract Bismuth silicate with sillenite structure (Bi 12 SiO 20 ) nanophase was prepared via melt–quenching technique in the Bi 2 O 3 –ZnO–SiO glass system. The effect of replacement ZnO by studied. Their thermal behavior showed change transition temperature (Tg) from 577 °C -free to 438 ZnO-free glass. In addition, crystallization temperatures were not only changed two one peak, but also decr...

Journal: :Journal of The Serbian Chemical Society 2022

Bismuth oxide kinetically stabilized by doping with a metastable structure of disordered fluorite ?-Bi2O3 has unique conductivity. Oxygen selective membranes at intermediate temperatures ~550?C, on the base cermet ?-Bi2O3/Ag, have highest potential for air separation and can be used to produce oxygen distributed multigeneration burning fossil carbon fuels. When searching optimal composition ?-B...

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