Results 221 to 230 of about 245,180 (301)

Ultrathin Niobium Carbide MXenzyme for Remedying Hypertension by Antioxidative and Neuroprotective Actions.

Angewandte Chemie - International Edition, 2023
Hypertension, as a leading risk factor for cardiovascular diseases, is associated with oxidative stress and impairment of endogenous antioxidant mechanisms, but the tremendous knowledge gap between hypertension treatment and nanomedicine is present at ...
H. Yang, Lili Xia, Xuanxuan Ye, Jiayi Xu, Tianfeng Liu, Linping Wang, Shuai Zhang, Wei Feng, Dongshu Du, Yu Chen   +9 more
semanticscholar   +3 more sources

Novel high stable electrocatalyst based on non-stoichiometric nanocrystalline niobium carbide toward effective hydrogen evolution

International Journal of Hydrogen Energy, 2021
In this work, we have developed a method for the synthesis of non-stoichiometric nanocrystalline niobium carbide (NbCy) using special heat treatment of niobium citrate in a vacuum. The powder synthesized was investigated by powder X-ray diffraction (PXRD)
M. Chebanenko, D. Danilovich, A. A. Lobinsky, V. Popkov, A. Rempel, A. Valeeva   +5 more
semanticscholar   +3 more sources

Implanting Niobium Carbide into Trichoderma Spore Carbon: a New Advanced Host for Sulfur Cathodes

Advanced Materials, 2019
Tailored construction of advanced carbon hosts is playing a great role in the development of high‐performance lithium–sulfur batteries (LSBs). Herein, a novel N,P‐codoped trichoderma spore carbon (TSC) with a bowl structure, prepared by a “trichoderma ...
Shenghui Shen, X. Xia, Y. Zhong, Shengjue Deng, D. Xie, Bo Liu, Yan Zhang, G. Pan, Xiuli Wang, J. Tu   +9 more
semanticscholar   +3 more sources

Niobium-Carbide MXene Modified Hybrid Hole Transport Layer Enabling High-Performance Organic Solar Cells Over 19.

Small, 2023
Niobium-carbide (Nb2 C) MXene as a new 2D material has shown great potential for application in photovoltaics due to its excellent electrical conductivity, large surface area, and superior transmittance.
Baozhong Deng, H. Lian, Baotong Xue, Ruichen Song, Shi Chen, Zihan Wang, Tao Xu, Hongliang Dong, Shenghao Wang   +8 more
semanticscholar   +1 more source

In-situ decoration of tin sulfide on Niobium carbide MXene with robust electronic coupling for improved sodium storage performance.

Journal of Colloid and Interface Science, 2023
Tin sulfide (SnS) has been considered as one of the most promising sodium storage materials because of its excellent electrochemical activity, low cost, and low-dimensional structure.
Yu Wang, Jiabao Li, Penghao Song, Jian Yang, Z. Gu, Tianyi Wang, Chengyin Wang   +6 more
semanticscholar   +1 more source

Amino‐Functionalized Niobium‐Carbide MXene Serving as Electron Transport Layer and Perovskite Additive for the Preparation of High‐Performance and Stable Methylammonium‐Free Perovskite Solar Cells

Advanced Functional Materials, 2022
Perovskite solar cells have shown great potential in commercial applications due to their high performance and easy fabrication. However, the electron transport layer (ETL) materials with good optoelectrical properties and energy levels matching that of ...
Jiankai Zhang, Chengwen Huang, Yapeng Sun, Huangzhong Yu   +3 more
semanticscholar   +1 more source

Synthesis of Niobium Carbide from Niobium Oxide Aerogels

Chemistry of Materials, 1995
Niobium carbide (NbC) synthesis was studied by the temperature-programmed reaction (TPR) between niobium oxide precursors of different textural properties and a 20% (v/v) CH{sub 4}-H{sub 2} mixture. Surface areas ranging between 13 and 74 m{sup 2}/g were obtained depending on the temperature and on the nature of the precursor (Nb{sub 2}O{sub 5} or an ...
V. L. S. Teixeira da Silva, E. I. Ko, M. Schmal, S. T. Oyama   +3 more
openaire   +1 more source

2.08μm Q-switched holmium fiber laser using niobium carbide-polyvinyl alcohol (Nb2C-PVA) as a saturable absorber

Optics Communications, 2021
In this paper, Q-switched pulses were generated for the first time in a holmium-doped fiber laser (HDFL) incorporating a niobium carbide-polyvinyl alcohol (Nb2C-PVA) film-based saturable absorber (SA).
H. Ahmad, N. Ismail, S. N. Aidit, S. A. Reduan, M. Z. Samion, N. Yusoff   +5 more
semanticscholar   +1 more source

Hardness anisotropy in niobium carbide

Journal of Materials Science, 1974
Measurements of hardness anisotropy by Knoop diamond indentation on the {100} surfaces of Nb6C5 crystals show that the hardness is determined by crystallographic slip on {111} 〈1¯10〉 and {110} 〈1¯10〉 systems. {111} is the preferred slip plane for Nb6C5 and crystals with higher carbon content which show a marked decrease in Knoop hardness.
G. Morgan, M. H. Lewis
openaire   +1 more source

THE NIOBIUM—NIOBIUM CARBIDE SYSTEM¹

The Journal of Physical Chemistry, 1960
The solid pontion of the Nb--NbC phase diagram was determined. The following characteristic temperatures were measured: a eutectic temperature between NbC/sub 0.08/ and NbC/sub 0.39/ of 2335 plus or minus 20 deg C, a peritectic temperature between NbC/sub 0.52/ and NbC/sub 0.56/ of 3090 deg 50 deg C and a melting point maximum at about NbC/sub 0.86/ of
E. K. Storms, N. H. Krikorian
openaire   +1 more source