Results 51 to 60 of about 23,098 (274)

Structural Design of MOF‐Based and MOF‐Derived Composites for Oxygen Evolution Electrocatalysis: Materials Innovation for Energy and Environmental Sustainability

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review provides an overview of recent developments in metal organic framework (MOF)‐based and MOF‐derived composites for efficient oxygen evolution reaction. This review also emphasizes the structural design of electrocatalyst, active site optimization, and emerging prospects of their use in practical electrolyzer systems.
Bhagyashri B. Kamble, Aditi De, Seung Joo Jang, Arun Karmkar, Venkatachalam Vinothkumar, Niyaz Mujawar, Subrata Kundu, Tae Hyun Kim   +7 more
wiley   +1 more source

Elucidating the crystal-chemistry of Jbel Rhassoul stevensite (Morocco) by advanced analytical techniques [PDF]

, 2008
The composition of Rhassoul clay is controversial regarding the nature of the puremineral clay fraction which is claimed to be stevensite rather than saponite.
A. Maazouz, B. Rhouta, Barrakad, Benammi, Briant, Brindley, Caillère, Dammour, Duringer, Eberhart, F. Maury, F. Senocq, Faust, Fleischer, Guven, H. Kaddami, Holtzapffel, J. Elbarqy, J.- F. Gerard, Jacobs, Jeannette, Jolivet, L. Daoudi, M. Amjoud, Mackenzie, Millot, Rautureau, Trauth, Wilson   +28 more
core   +3 more sources

Limestone and Calcined Clay-Based Sustainable Cementitious Materials for 3D Concrete Printing: A Fundamental Study of Extrudability and Early-Age Strength Development

Applied Sciences, 2019
The goal of this study is to investigate the effects of different grades of calcined clay on the extrudability and early-age strength development under ambient conditions. Four mix designs were proposed.
Yu Chen, Zhenming Li, Stefan Chaves Figueiredo, Oğuzhan Çopuroğlu, Fred Veer, Erik Schlangen   +5 more
doaj   +1 more source

Ghanaian Clay as a Catalyst for Transesterificating Shea Butter Oil as Alternative Feedstock for Green Energy Production

International Journal of Chemical Engineering, 2022
In this study, catalytic transesterification of Shea butter oil with methanol to biodiesel was carried out. The clay particle was first sieved with a 250 ml sieve and then calcined at 800μC for 8 hours in a furnace.
Mohammed Takase
doaj   +1 more source

Synthesis and Evaluation of Ceramic‐Anchored Cu‐Ce‐MnOx Catalyst for Low Temperature Reduction of Diesel Engine NOx Emissions Using Liquefied Petroleum Gas or Adblue as Reductants

Energy Science &Engineering, EarlyView.
LPG converting harmful NO represented by the dark smoke to harmless N2 and H2O shown by the white smoke over Cu‐Ce‐MnOx catalyst. ABSTRACT Manganese oxide‐based catalyst doped with copper and cerium was synthesized through microwave irradiation and successfully anchored on a ceramic support.
Brian O. Obita, Simon Ngigi Mbugua, Clare I. Muhanji, Joseph O. Lalah   +3 more
wiley   +1 more source

Þinghald að fornu : fornleifarannsóknir 2003 [PDF]

, 2004
No abstract ...
Batey, Colleen, Friðriksson, Adolf, Gestsdóttir, Hildur, Guðmundsson, Garðar, Roberts, Howell M., Sigurgeirsson, Magnús Á., Wollett, Jim   +6 more
core  

Toward sustainable construction 3D printing: limestone and non-calcined recycled marine clay as partial cement replacement

Cleaner Engineering and Technology
This study investigates the effects of partial substitution of Ordinary Portland Cement with different proportions of non-calcined marine clay and different grades (by particle size) of Ground Limestone to formulate 3D-printable concrete.
Harn Wei Kua, Anqi Shi, Vignesh Kajandran, Charlene, Tiam Weng Mark Lam, Abhimanyu Goel, De Hui Alwin Wong, Peak Kee Lim, Layla Harris Kasee, Xi Wen Ong, Ghasan Fahem Huseien, Alexander Lin   +11 more
doaj   +1 more source

The Influence of some calcined clays from Nigeria as clinker substitute in cementitious systems

Case Studies in Construction Materials, 2020
This paper examines the possibility of the use of some clays calcined from Nigeria as partial substitutes for clinker in the production of Limestone Calcined Clay Cement (LC3).
Akindehinde A Akindahunsi, François Avet, Karen Scrivener   +2 more
doaj   +1 more source

Improvement of water absorption behavior and mechanical properties of woven jute fiber‐reinforced epoxy composites with waste eggshell filler

Polymer International, EarlyView.
This study investigates the influence of waste eggshell powder on the water absorption and mechanical properties of jute fiber‐reinforced epoxy composites. Optimal eggshell filler content (2 wt%) significantly enhances composite performance by reducing water absorption and improving mechanical properties.
Safak Yildizhan, Anand Mohanam, Ranjitha Jambulingam, Vishal Gavande, Won‐Ki Lee   +4 more
wiley   +1 more source

Removal of 2,4-dichlorophenoxyacetic Acid by Calcined Zn–Al–Zr Layered Double Hydroxide [PDF]

, 2011
The adsorption equilibrium, kinetics, and thermodynamics of removal of 2,4-dichlorophenoxy-acetic acid (2,4-D) from aqueous solutions by a calcined Zn–Al layered double hydroxide incorporated with Zr4+ were studied with respect to time, temperature, pH ...
Chaparadza, Allen, Hossenlopp, Jeanne
core   +1 more source