Results 121 to 130 of about 1,347,740 (319)

Heterogeneous catalytic ozonation of 2, 4-dinitrophenol in aqueous solution by magnetic carbonaceous nanocomposite: catalytic activity and mechanism [PDF]

, 2016
Herein, the catalytic properties of a carbonaceous nanocomposite in the catalytic ozonation process (COP) of 2, 4-dinitrophenol (2, 4-DNP) were investigated and the results were compared with those obtained from single ozonation process (SOP).
Bahrami Asl, F., Baneshi, M.M., Dadban Shahamat, Y., Okhovat, N., Sadeghi, M., Shahryari, A.   +5 more
core  

Production of MgO/TiC Composites From MgO‐C Recyclates Using Spark Plasma Sintering

Advanced Engineering Materials, EarlyView.
Using the spark plasma sintering technique, MgO/TiC composites are manufactured from recycled MgO‐C refractories stemming from the steel production that were mixed with titanium powder. This article shows, how the size of the Ti grains and their distribution in the powder mixture affect the local carbon concentration in TiC.
Jiayan Yu, Christian Schimpf, Stefan Martin, David Rafaja   +3 more
wiley   +1 more source

Computing and teaching microsymposia at ECM [European Crystallographic Meeting 20, Krakow, August 2001] [PDF]

, 2001
Microsymposia on the contemporary topic of Computing and Teaching Some key issues regarding different models for delivery of the curriculum, the pace of introducing the new technologies, the role of government in delivering mass education and the ...
Kelly, Jim
core  

Research into the effect of gallery size on blast pull in underground coal mines [PDF]

, 2018
Purpose. To investigate the effect of gallery size on blast pull in underground colliery by drilling and blasting techniques. Methods. The study conducted in three different underground collieries namely A, B and C located in eastern part of India has ...
Choudhary, B
core   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Recycling of Waste Toner in the Republic of Croatia – An Environmentally Friendly Approach

Chemical Engineering Transactions, 2013
Large amounts of waste toner cartridges have been generated as a consequence of their use in printers and duplicators on an everyday basis. Waste toner cartridges contain heavy metals, plastics, as well as toxic residual toner powder, and have been ...
A. Anic Vucinic, D. Vujevic, K. Mujkic, M. Novak   +3 more
doaj   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

Innovative Powder Reuse Strategy in the Selective Laser Sintering Process Using a Fluidized Bed System

Chemical Engineering Transactions
This study introduces an innovative method for the recovery and reuse of unsintered powder in the Selective Laser Sintering (SLS) process, widely used in additive manufacturing for creating complex components with a broad range of powder materials.
Daniele Sofia, Rossella Girimonte
doaj  

Reuse powder impacts in additive manufacturing for aeronautical parts

The International Journal of Advanced Manufacturing Technology
Abstract The reuse of powder in laser powder bed fusion offers a promising approach to optimizing material usage, reducing costs, and improving sustainability. However, its application in the aeronautical sector presents significant challenges due to strict certification requirements, process reliability concerns, and the need to ...
Bruna Torres Ferreira, João Monteiro, Anderson Borille, Marco Leite, Inês Ribeiro   +4 more
openaire   +1 more source

Rational Fine‐Tuning of MOF Pore Metrics: Enhanced SO2 Capture and Sensing with Optimal Multi‐Site Interactions

Advanced Functional Materials, EarlyView.
A pore tuning strategy to amplify the multi‐site MOF‐SO2 interactions is proposed to achieve an enhanced trace SO2 capture and chemiresistive sensing in highly stable isostructural DMOFs by annelating benzene rings. This work provides a facile strategy to achieve tailor‐made stable MOF materials for specific multifunctional applications.
Shanghua Xing, Abdulrahman Mohabbat, István Boldog, Jens Möllmer, Marcus Lange, Yulyan Haiduk, Tobias Heinen, Vladimir Pankov, Oliver Weingart, Christoph Janiak   +9 more
wiley   +1 more source