Results 11 to 20 of about 97,501 (249)

Pd/SAPO-34 passive NO x adsorbers: Stable Pd ion adsorption sites in six-member rings

Materials Research Express, 2021
Pd/zeolites with chabazite (CHA) topology are effective passive NO _x adsorbers (PNAs), which are promising for the removal of NO _x from diesel exhausts during cold start to meet increasingly stringent emission regulations.
Nana Zhang, Yin Xin, Ruirui Li, Dongxu Han, Junxiu Jia, Qian Li, Jin Wang, Zhaoliang Zhang   +7 more
doaj   +1 more source

Theoretical insights on designing of difluoramino compounds

FirePhysChem, 2022
In order to screen out novel energetic compounds with excellent comprehensive properties and provide theoretical guidance for design researcher, a series of difluoroamino energetic compounds were designed by combining energetic molecular scaffolds and ...
Peng Lian, Chao Kang, Xiao-fei Tang, Xi-jie Wang, Song Chen, Wei-peng Lai   +5 more
doaj  

Experimental observation and energy performance calculations of potential oxidants O4−/0 and O6−/0 clusters

FirePhysChem, 2022
In order to explore novel high-energy and green oxidants, oxygen-rich clusters O4−/0 and O6−/0 were investigated by laser-vaporization source, mass spectrometry and theoretical calculations.
Bin Yang, Kewei Ding, Taoqi Li, Chenxi Qu, Luyao Zhu, Zhongxue Ge   +5 more
doaj  

Reduced Graphene Oxide-Supported Iron-Cobalt Alloys as High-Performance Catalysts for Oxygen Reduction Reaction

Nanomaterials, 2023
Exploring non-precious metal-based catalysts for oxygen reduction reactions (ORR) as a substitute for precious metal catalysts has attracted great attention in recent times.
Jun Dong, Shanshan Wang, Peng Xi, Xinggao Zhang, Xinyu Zhu, Huining Wang, Taizhong Huang   +6 more
doaj   +1 more source

Preparation of Thermo-Responsive and Cross-Linked Fluorinated Nanoparticles via RAFT-Mediated Aqueous Polymerization in Nanoreactors

Molecules, 2017
In this work, a thermo-responsive and cross-linked fluoropolymer poly(2,2,2-Trifluoroethyl) methacrylate (PTFEMA) was successfully prepared by reversible addition-fragmentation chain transfer (RAFT) mediated aqueous polymerization with a thermo ...
Jiachen Ma, Luqing Zhang, Bing Geng, Umair Azhar, Anhou Xu, Shuxiang Zhang   +5 more
doaj   +1 more source

Plausibility of potassium ion-exchanged ZSM-5 as soot combustion catalysts

Scientific Reports, 2017
Potassium (K) ion-exchanged ZSM-5 zeolites were investigated for catalytic soot combustion. X-ray absorption fine-structure (XAFS), Raman, in situ IR and NH3-temperature programmed desorption (NH3-TPD) confirmed the location of K+ at the ion-exchanged ...
Chenxi Lu, Taizheng Liu, Qiaolan Shi, Qian Li, Ying Xin, Lei Zheng, Zhaoliang Zhang   +6 more
doaj   +1 more source

Synthesis and Characterization of Hierarchical ZSM-5 Zeolites with Outstanding Mesoporosity and Excellent Catalytic Properties

Nanoscale Research Letters, 2018
A novel soft-template (ST) is fabricated and successfully employed as mesoporogen to synthesis hierarchical ZSM-5 zeolites with outstanding mesoporosity and high hierarchy factors.
Guoqiang Song, Wenting Chen, Peipei Dang, Shengyuan Yang, Yuan Zhang, Yuanyi Wang, Ruidi Xiao, Rong Ma, Fuxiang Li   +8 more
doaj   +1 more source

Comparative Wear and Friction Analysis of Sliding Surface Materials for Hydrostatic Bearing under Oil Supply Failure Conditions

Advanced Engineering Materials, EarlyView.
Hydrostatic bearings excel in high‐precision applications, but their performance hinges on a continuous external supply. This study evaluates various material combinations for sliding surfaces to mitigate damage during supply failures or misalignment and to discover the most effective materials identified for enhancing the reliability and efficiency of
Michal Michalec, Lukáš Daněk, Jan Foltýn, Petr Svoboda, Carsten Gachot, Martin Hartl, Ivan Křupka   +6 more
wiley   +1 more source

Biosensor Based on Covalent Organic Framework Immobilized Acetylcholinesterase for Ratiometric Detection of Carbaryl

Biosensors, 2022
A ratiometric electrochemical biosensor based on a covalent organic framework (COFThi-TFPB) loaded with acetylcholinesterase (AChE) was developed. First, an electroactive COFThi-TFPB with a two-dimensional sheet structure, positive charge and a pair of ...
Ying Luo, Na Wu, Linyu Wang, Yonghai Song, Yan Du, Guangran Ma   +5 more
doaj   +1 more source

A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?

Advanced Engineering Materials, EarlyView.
Researchers investigate black phosphorous (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli, Manel Rodríguez Ripoll, Sabine Schwarz, Ali Erdemir, Maria Clelia Righi, Carsten Gachot   +5 more
wiley   +1 more source