Results 81 to 90 of about 801,967 (275)

Sub‐Nanometer Cobalt on Tungsten Titanium Carbide MXene (W2TiC2Tx): An Electrocatalyst for Highly Efficient and Stable Alkaline Hydrogen Evolution at Industrial‐Scale Current Density

Advanced Materials, EarlyView.
A novel W2TiC2Tx MXene prepared through a MAX‐phase route supports sub‐nanometer Co for highly efficient alkaline hydrogen evolution. Strong Co–W interfacial interactions optimize hydrogen adsorption and catalytic activity, enabling low overpotentials of 63 mV at 10 mA cm−2, small Tafel slope of 44.3 mV dec−1, and exceptional durability at industrially
Xiaopeng Liu, Fan Yang, Deep M. Patel, Mohammad Albloushi, Qiqi Mao, Shan Jiang, Christian J. Breckner, Connor W. Schroeder, Ruoyu Cui, Tao Ma, Dapeng Jing, Wenyu Huang, Jeffrey T. Miller, Wenzhen Li, Luke T. Roling, Yue Wu   +15 more
wiley   +1 more source

Yerranderie a Late Devonian Silver–Gold–Lead Intermediate Sulfidation Epithermal District, Eastern Lachlan Orogen, New South Wales, Australia [PDF]

Resource Geology, 2007
AbstractFelsic volcanic units of the Early Devonian Bindook Volcanic Complex host the Yerranderie epithermal silver–gold–lead district 94 km west–southwest of Sydney. Mineralization in the district forms part of a fault‐controlled, intermediate sulfidation, epithermal silver–gold–base metal vein system that has significant mineral and alteration ...
openaire   +1 more source

Interfacial Failure and Self‐Healing in Solid‐State Batteries

Advanced Materials, EarlyView.
Dynamic interfacial self‐healing offers an adaptive route to mitigate coupled mechanical, chemical, and electrochemical degradation in solid‐state batteries. This review connects evolving interfacial failure mechanisms with physical‐flow, chemical‐restoration, stimuli‐responsive, and electric‐field‐assisted repair strategies, highlighting targeted self‐
Xinxin Zhu, Tengfei Dai, Wendi Dou, Zhiheng Li, Kaihua Wen, Yanqun Lv, Ming Zhao, Jun Lu, Zaiping Guo   +8 more
wiley   +1 more source

Advances in quantum dot intermediate band solar cells [PDF]

, 2010
Several groups have reported on intermediate band solar cells (IBSC) fabricated with InAs/GaAs quantum dots (QD) which exhibit quantum efficiencies (QE) for sub-bandgap photon energies.
Antolín Fernández, Elisa, Hernández Martín, Estela, Stanley, C., C. R. Stanley, Farmer, C., Marti, A., Stanley, Colin, Hernandez, E., Farmer, C.D., C. D. Farmer, A. Luque, E. Antolin, García-Linares Fontes, Pablo, A. Marti, Antolin, E., Ramiro Gonzalez, Iñigo, Ramiro, I., I. Ramiro, Linares, P.G., Luque, A., Luque López, Antonio, Martí Vega, Antonio, P. G. Linares, E. Hernandez   +23 more
core   +1 more source

Extreme Bond Ionicity in Mg─Te Chalcogenides for Ultrathin Low Voltage Selector‐Only Memory beyond the Leakage Scaling Limit

Advanced Materials, EarlyView.
Mg─Te chalcogenides address the leakage scaling trade‐off in ultrathin selector‐only memory. Structural partitioning in multiphase Mg─Te, combined with highly ionic Mg─Te bonding and Hf interfacial engineering, supports reliable 5 nm thickness operation at low write voltage with suppressed leakage current, narrow threshold voltage distributions, 10 ns ...
Yoori Seo, Dongmin Kim, Yu Bin Park, Jangseop Lee, Tae Hoon Lee, Hyunsang Hwang   +5 more
wiley   +1 more source

Sulfidation mechanism of ZnO roasted with pyrite

, 2018
Sulfidation is a widely used technology to improve the floatability of oxidized metal minerals or to stabilize the heavy metals in various wastes. The sulfidation mechanism of ZnO with pyrite was detailedly studied by thermodynamic calculation and ...
Junwei Han, Wenqing Qin, Lin Zhu, Fen Jiao, Wei Liu   +4 more
core   +1 more source

Regulating Phase Evolution and Crystallization Dynamics Enables Low Open‐Circuit Voltage Deficit in Wide‐Bandgap Cu2ZnSnS4 Solar Cells

Advanced Materials, EarlyView.
Bilayer composition‐modulated sulfurization (BCMS) regulates Cu redistribution in solution‐processed Cu2ZnSnS4, suppressing Cu2SnS3 and favoring the direct transformation pathway, while transforming the crystallization from surface‐dominated growth to a more synchronized process.
Hang Geng, Jingwen Cao, Jialiang Huang, Ao Wang, Zuoyun Wang, Xiaojie Yuan, Yidong Liu, Chenghan Zhao, Jialin Cong, Kaiwen Sun, Xiaojing Hao   +10 more
wiley   +1 more source

Mineralization and hydrothermal alteration of the Tajroud vein system, south of Neyshabour

Journal of Economic Geology, 2013
The Tajroud vein system is located 190 km southwest of Mashhad, and in the southern part of the Sabzevar zone. The vein host rocks consist of Eocene intermediate to silicic volcanic rocks.
Mohsen Alikhani Banghani, Gholam Hosein Shamanian, Mohammad Jafari Zanglanlou   +2 more
doaj  

Intermediate a mid-term exam v1 [PDF]

, 2010
Written exam for students who have completed Units 7A to 11B of the Face2Face Pre-Intermediate Student´s Book published by Cambridge University ...
Pedley, Emma
core  

Sulfidation Mechanism for Zinc Oxide Nanoparticles and the Effect of Sulfidation on Their Solubility

, 2013
PMID: 23425191International audienceEnvironmental transformations of nanoparticles (NPs) affect their properties and toxicity potential. Sulfidation is an important transformation process affecting the fate of NPs containing metal cations with an ...
Rui Ma, Clément Levard, Michel, F. Marc, Levard, Clément, F. Marc Michel, Lowry, Gregory V., Gordon E. Brown, Gregory V. Lowry, Brown, Gordon E., Ma, Rui   +9 more
core   +1 more source