Results 91 to 100 of about 1,408 (270)

Facile synthesis of RGO–PANI–Nd₂O₃ composite as an Efficient platinum-free counter electrode for dye-sensitized solar cells

International Journal of Electrochemical Science
Dye-sensitized solar cells (DSSCs) have been extensively studied for their enormous promises as an affordable alternative to conventional p-n junction solar cells. Their broad applicability is limited by the high cost of platinum (Pt) counter electrodes (
Humaira Seema, Kiran Fouzia, Tahseen Kamal, Anish Khan, Raman Kumar, Arun Y. Patil   +5 more
doaj   +1 more source

Atroposelective Access to π‐Conjugated 1,2‐Azaborepines Enabled by Palladium‐Catalyzed Cyclization of N‐Heterobiaryls with Alkynylboronates

Advanced Science, EarlyView.
We report a palladium‐catalyzed atroposelective cyclization of N‐heterobiaryl triflates with alkynyl boronates to access seven‐membered 1,2‐BN‐bridged biaryls with high yields and excellent enantioselectivity via a cascade DyKAT, cis‐carbopalladation, and 1,2‐migration, which expands the toolbox for axially chiral π‐conjugated boron compounds and opens
Fengya He, Zhen Wang, Haoyu Guo, Shuguang Chen, Xu Zhang, Yongjia Shang, Hui Wang   +6 more
wiley   +1 more source

Understanding the Catalytic Determinant role of Diaphorase‐Like Subunit in Formate Dehydrogenases via Redox Couples

Advanced Science, EarlyView.
A unique mechanism of catalytic bias regulated by diaphorase‐like subunit in formate dehydrogenase from Rhodobacter aestuarii is revealed. The diaphorase‐like subunit functions act as a biological “voltage rheostat” that controls the slow release of NADH to regulate redox balance, biasing the enzyme's catalytic preference toward CO2 reduction over ...
Kuncheng Zhang, Weisong Liu, Hao Su, Huijuan Cui, Yuanming Wang, Zhiguang Zhu, Chun You, Lingling Zhang   +7 more
wiley   +1 more source

Extraction of Nd(III) by Hydrophobic Deep Eutectic Solvent BTMPPA/Phenol from Nitrate Solution

Proceedings
Today, rare earth elements (REEs) are used in the production of high-tech products, including permanent magnet lasers, computer equipment, etc. The recycling of NdFeB magnets is a promising REE resource, as the amount of waste-spent magnets increases ...
Inna V. Zinov’eva, Yulia A. Zakhodyaeva, Andrey A. Voshkin   +2 more
doaj   +1 more source

Lewis‐Acid Engineering with Neodymium Promoters as Synergistic Nd‐Ni Dual Sites for Enhanced Urea Oxidation

Advanced Science, EarlyView.
The integration of rare‐metal neodymium centers to engineer Lewis acid sites with nickel centers is proposed as highly efficient UOR catalysts. ABSTRACT The sluggish kinetics of the urea oxidation reaction (UOR) are strongly associated with the high energy barriers required for the C‐N cleavage and N‐N coupling steps.
Mingfan Li, Jun Mei, Jiahao Zhao, Ruipeng Guo, Jing Shang, Ziyou Dong, Juan Bai, Qianqian Yao, Shixue Dou   +8 more
wiley   +1 more source

Hierarchical Twin Networks Enable Exceptional Strength and Fracture Toughness in Titanium

Advanced Science, EarlyView.
A commercial‐purity titanium with hierarchical ultrafine twin structures delivers an exceptional combination of fracture toughness (KJIc) of 187 MPa·m1/2 and specific yield strength of 140 MPa·cm3·g−1, in which pre‐engineered high‐density twin boundaries stimulate massive and dislocations to blunt crack tip.
Xiao‐Wei Zou, Ting Zhu, En Ma, Wei‐Zhong Han   +3 more
wiley   +1 more source

A Millimeter‐Scale Implantable Magneto–Mechano–Electric Transducer Based on BTO Piezoelectric Ceramics for Remote Wireless Electrical Stimulation of Injured Sciatic Nerves

Advanced Science, EarlyView.
We report a fully wireless, circuit‐free neural stimulator built on a millimetric magneto‐mechano‐electric (MME) cantilever transducer (3 × 10 × 5 mm) with a barium titanate (BTO) piezoelectric ceramic core. Under low‐frequency alternating magnetic fields, the MME cantilever mechanically oscillates, inducing stress on the BTO element and thereby ...
Yijing Wang, Jingyu Tian, Zhe Xu, Cuiling Zhang, Jingen Wu, Ming Liu, Zhilu Ye, Xiaohui Zhang   +7 more
wiley   +1 more source

In Situ Pseudo‐Halide Diffusion Enables Buried Interface Regulation and Crystallinity Enhancement in Perovskite Solar Cells

Advanced Science, EarlyView.
Thermally activated LiHCOO induces in situ pseudo‐halide diffusion, promoting buried interface strain release and perovskite crystallization. The monoclinic LiHCOO phase forms an open framework structure that enhances HCOO− diffusion and drives interfacial restructuring.
Chao Gao, Li He, Changjiang Li, Long Fang, Wenzhong Shen   +4 more
wiley   +1 more source

Preparación y caracterización de óxidos de cobalto Cuasi-bidimensionales Ln_1-xSr_1+xCoO₄ (Ln= La, Nd y Gd)

Boletín de la Sociedad Española de Cerámica y Vidrio, 2004
By using the nitrate decomposition method in the presence of KNO3, we have been able to enlarge the compositional range of the cobaltlayered compounds Ln1-xSr1+xCoO4 (Ln: La, Nd, Gd) to 0≤x≤0.40 in the case of lanthanum, to 0≤x≤0.30 for neodymium, and to
Señarís-Rodríguez, M. A., Castro-García, S., Castro, A., Yáñez, S., Sánchez-Andújar, M.   +4 more
doaj  

Плазмохимический синтез и исследование оксидных композиций «оксид неодима – оксид самария – оксид иттрия» [PDF]

, 2020
Определены составы водно-органических нитратных растворов и режимы их переработки в воздушно-плазменном потоке, обеспечивающие плазмохимический синтез наноразмерных оксидных композиций из диспергированных водно-органических нитратных растворов неодима ...
Дербин, Алексей Юрьевич
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