Results 141 to 150 of about 4,557,674 (294)

Zeolite deactivation during hydrocarbon reactions: characterisation of coke precursors and acidity, product distribution [PDF]

open access: yes, 2008
The catalytic conversion of hydrocarbons over zeolites has been applied in large scale petroleum-refining processes. However, there is always formation and retention of heavy by-products, called coke, which causes catalyst deactivation. This deactivation
Wang, B.
core  

Toward a Paradigm Shift in Low‐Temperature SCR Catalyst Design: Defect Engineering and Data‐Driven Integration

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work systematically reviews the key factors influencing the performance of low‐temperature NH3‐SCR. The mechanism and challenges of defect engineering strategies, such as oxygen vacancies, heteroatom doping, crystal facet exposure, and surface reconstruction, in controlling both activity and selectivity were analyzed.
Rongrong Kan   +3 more
wiley   +1 more source

Sol–gel synthesis of ZnO@SiC heterojunctions from photovoltaic waste for enhanced paracetamol photodegradation

open access: yesEnvironmental Progress &Sustainable Energy, EarlyView.
Abstract Exponential growth in photovoltaic energy production has created a critical environmental challenge: managing silicon carbide (SiC) waste from wafer cutting processes. This study addresses this challenge by transforming photovoltaic waste into high‐value photocatalytic materials.
Hajer Aloulou   +3 more
wiley   +1 more source

Analysis of Pore Structure in Cement Pastes with Micronized Natural Zeolite. [PDF]

open access: yesMaterials (Basel), 2023
Toma IO   +5 more
europepmc   +1 more source

A High‐Efficiency Yet Sustainable Fresh‐Keeping Strategy Inspired by Calyx of Physalis peruviana

open access: yesExploration, EarlyView.
This study presents a sprayable, calyx‐inspired food wrap engineered for safety and sustainability using handheld electrospraying. The wrap forms a health‐critical protective barrier with high antiviral and antibacterial efficacy, excellent breathability, and long‐term fresh‐keeping performance.
Yue Zhao   +17 more
wiley   +1 more source

The research progress in polyethylene oxide polymer electrolytes

open access: yesFlexMat, EarlyView.
Polyethylene oxide (PEO) has become the mainstream matrix material for solid polymer electrolytes (SPEs) due to its excellent lithium salt complexation ability and processability. However, its high crystallinity results in low ionic conductivity at room temperature and difficulty in suppressing lithium dendrite growth, which significantly hinders the ...
Ying Wei   +8 more
wiley   +1 more source

Rethinking ethanol separation in continuous spirit production from a process intensification perspective

open access: yesJournal of Chemical Technology &Biotechnology, EarlyView.
Abstract Continuous neutral‐alcohol and food‐grade ethanol production is an energy‐intensive process in which distillation and rectification alone account for 50–85% of total plant energy use. While significant advances in separation technology have emerged over the past two decades, the spirits industry continues to rely predominantly on multi‐effect ...
Anton A Kiss
wiley   +1 more source

Iron‐modified natural sand as a heterogeneous Fenton catalyst for methylene blue and textile wastewater treatment

open access: yesJournal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND The continuous discharge of organic dyes into freshwater poses long‐term environmental risks. Heterogeneous Fenton‐like processes using iron (Fe)‐modified silica (SiO2) supports are promising for dye removal; however, catalysts derived from natural sand and operating under near‐neutral conditions remain relatively underexplored ...
Hajer Aloulou   +6 more
wiley   +1 more source

Removal of Water from Natural Gas Using Zeolite 4A and Zeolite 5A [PDF]

open access: yes, 2009
This report is discussed regarding the research on Removal of Water from Natural Gas using Zeolite 4A and Zeolite 5A. The natural gas that comes from the well usually is saturated with water.
Norwahyu Binti Jusoh, Norwahyu
core  

Home - About - Disclaimer - Privacy