Results 91 to 100 of about 249,243 (285)

MICRONOSTRUCTURED NIOBIUM ANODIC OXIDES

Transaction Kola Science Centre
The report presents the results of a study of anodic oxide films (AOFs). They were synthesized using a combined Nb anodization technique. The technique was previously used to obtain quasi-barrier AOFs on aluminum. At the first stage, combined anodizing involves the formation of self-organized porous Nb2O5 on the Nb surface, and at the second stage, it ...
Natalya M. Yakovleva, Anastasiya A. Gorbacheva, Kristina V. Stepanova, Elena A. Chupahina, Aleksander N. Kokatev, Alisa M. Shulga   +5 more
openaire   +1 more source

Unveiling Exsolution‐Induced Giant Electronic and Magnetic Property Changes in Non‐Stoichiometric Titanate Perovskite Thin Films

Advanced Materials, EarlyView.
A giant insulator to metal transition and emergent superparamagnetism are revealed by nanoparticle exsolution in non‐stoichiometric titanate perovskite thin films. By combining transport, synchrotron spectroscopy, and first‐principles calculations, this work reveals how defect reconfiguration and lattice reconstruction fundamentally reshape electronic ...
Sungil Kim, June Ho Lee, Yaolong Xing, Dongchang Kim, Haeseong Jeong, Mongjun Jeong, Manuel Valvidares, Stuart S. P. Parkin, Sang Ho Oh, Donghwa Lee, Hyojin Yoon, Hyeon Han   +11 more
wiley   +1 more source

Novel borothermal process for the synthesis of nanocrystalline oxides and borides of niobium

, 2011
A new process has been developed for the synthesis of nanocrystalline niobium oxide and niobium diboride using an amorphous niobium precursor obtained via the solvothermal route.
Samuel E. Lofland, Lofland, Samuel E., Govind Gupta, Gupta, Govind, Menaka Jha, Ganguli, Ashok K., Kandalam V. Ramanujachary, Ramanujachary, Kandalam V., Jha, Menaka, Ashok K. Ganguli   +9 more
core   +1 more source

TiO2/Pt-Free DSSC produced with Nb2O5 and Polyaniline: a preliminary study [PDF]

Cerâmica
Solar energy offers an eco-friendly alternative to address global energy challenges. This study develops a cost-effective dye-sensitized solar cell (DSSC) using niobium pentoxide (Nb2O5) as a photoanode and a polyaniline (PANI) composite as a counter ...
Ana Paula da Silva Vieira, Ronald Luiz Castiglioni Davi, Edson Araujo de Almeida, Oscar Rodrigues dos Santos, Jéssica de Lara Andrade, Regiane da Silva Gonzalez, Gideã Taques Tractz   +6 more
doaj   +1 more source

High‐Entropy Ceramic‐Enhanced Deformable Triboelectric Nanogenerator for Noncontact Biomechanical and Raindrop Energy Harvesting

Advanced Materials, EarlyView.
A large‐area, deformable high‐entropy‐ceramic (HEC)‐doped triboelectric nanogenerator with a trilayer architecture is developed, consisting of an HEC‐doped triboelectric layer, a graphite‐like textile charge‐storage layer, and stretchable carbon black electrodes.
Shengyou Li, Wei‐Chen Peng, Syun‐Hong Chou, Zhi‐Xian Yan, Jiann‐Yeu Chen, Dun‐Jie Jhan, Wei‐Chun Yang, Shi‐Hong Chen, Yi‐Lin Huang, Cheng‐Hung Tsai, Ming‐Yen Lu, Heng‐Jui Liu, Cheolmin Park, Ying‐Chih Lai   +13 more
wiley   +1 more source

Prepearing of nanopowders of niobium and tantalum oxides [PDF]

, 2006
Проведены исследования по синтезу из растворов оксидов ниобия и тантала. Определены условия, позволяющие получать мягкие, легко фильтруемые осадки гидратированных оксидов; установлены температуры кристаллизации соответствующих оксидов. Полученные Nb₂O₅ и
Янчевский, О.З., Крамаренко, А.В., Белоус, А.Г.   +2 more
core   +1 more source

Establishing Atomic Coherence in Twisted Oxide Membranes Containing Volatile Elements

Advanced Materials, EarlyView.
Twisted oxide membranes containing volatile elements often suffer from amorphous interfacial dead layers that suppress coupling. An oxygen‐annealing strategy establishes atomically coherent and chemically bonded interfaces in twisted NaNbO3 membranes, enabling coherent oxide moiré architectures in volatile‐element‐containing systems.
Young‐Hoon Kim, Reza Ghanbari, Min‐Hyoung Jung, Yang Zhang, Young‐Min Kim, Ruijuan Xu, Miaofang Chi   +6 more
wiley   +1 more source

Structure-activity correlations for Brønsted acid, Lewis Acid, and photocatalyzed reactions of exfoliated crystalline niobium oxides [PDF]

, 2016
Exfoliated crystalline niobium oxides that contain exposed but interconnected NbO6 octahedra with different degrees of structural distortion and defects are known to catalyze Brønsted acid (BA), Lewis acid (LA), and photocatalytic (PC) reactions ...
Rees, GJ, Tsang, S. C. Edman, Koito, Yusuke, Kobayashi, Hisayoshi, Khan, M. Abdullah, Koito, Y, Rees, Gregory J., Wang, Tong, Hanna, John V., Puchtler, Tim, Peng, Yung-Kang, Kreissl, Hannah T., Hanna, JV, Teixeira, Ivo F., Kobayashi, H, Puchtler, Tim J., Khan, MA, Taylor, Robert, Li, MMJ, Li, Molly M. J., Tsang, Shik   +20 more
core   +1 more source

Sustainable and Multifunctional Natural Macromolecular Polymers for Aqueous Zn Metal Batteries

Advanced Materials, EarlyView.
We comprehensively review the structure‐function relationships and regulatory mechanism of natural macromolecular polymers in stabilizing zinc anodes at the microscopic and mesoscopic scales. The interactions among polymer structures, optimization strategies, and regulatory mechanisms are discussed systematically summarizing recent related research ...
Yunuo Shi, Bo Jiang, Jingcheng Zhang, Xiaodong Shao, Peixun Xiong, Lutong Shan, Shengyang Huang, Mengfang Liang, Mengyao Chang, Fangyan Liu, Wenwu Li, Baoyu Xia, Wei Ji, Ho Seok Park   +13 more
wiley   +1 more source

Tailoring Symmetry Breaking in Engineered van der Waals Superlattices

Advanced Materials, EarlyView.
We pioneer a scheme to tailor superpotentials in graphene based on intrinsic substrate electronic orders rather than twist angle. The resulting superpotential folds graphene's Dirac cones to either Γ$\Gamma$ or K‐points, leading to distinct symmetry behaviors.
Keda Jin, Lennart Klebl, Zachary A. H. Goodwin, Junting Zhao, Felix Lüpke, Dante M. Kennes, Jose Martinez‐Castro, Markus Ternes   +7 more
wiley   +1 more source