Results 81 to 90 of about 590,689 (288)

Hydration process and compressive strength of cement pastes containing natural zeolite [PDF]

Građevinski Materijali i Konstrukcije, 2016
This paper presents the results of the study examining the effect of natural zeolite from Igroš, Serbia, on the hydration and compressive strength of Portland cement based pastes, in which a part of cement has been replaced by natural zeolite.
Radeka Miroslava, Milović Tiana, Malešev Mirjana, Radonjanin Vlastimir, Laban Mirjana   +4 more
doaj   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +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

At the cutting edge : structural analysis and chemical modification of the edges of mechanically cleaved graphene nanoribbons : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Nanoscience at Massey University, Manawatū, New Zealand [PDF]

, 2017
The first decade of the new carbon nanomaterial graphene has been a time of great discovery and excitement as the exceptional properties of this material were uncovered and its promise for numerous applications realised.
Dykstra, Haidee Michaela
core  

A Prehispanic Maya Pit Oven? Microanalysis of Fired Clay Balls from the Puuc Region, Yucatán, Mexico [PDF]

, 2013
This is a postprint (author's final draft) version of an article published in Journal of Archaeological Science in 2013. The final version of this article may be found at http://dx.doi.org/10.1016/j.jas.2012.10.014 (login may be required).
Berna, Francesco, Bey, George J., III, Simms, Stephanie R.   +2 more
core   +2 more sources

Unassisted Photoelectrochemical Hydrogen Production Coupled with Selective Glucose Oxidation Using Metal Halide Perovskite Photoanodes

Advanced Functional Materials, EarlyView.
A metal halide perovskite‐based photoanode integrated with a CoNiFe layered double hydroxide (LDH) cocatalyst is reported for selective glucose oxidation reaction (GOR), achieving simultaneous and unassisted photoelectrochemical hydrogen production. This system delivers high photocurrent density, excellent Faradaic efficiency of GOR, and strong techno ...
Shujie Zhou, Xu Liu, Michael Gunawan, Yihao Shan, Ming Zhang, Shaine Lucas, Adhi Satriyatama, Denny Gunawan, Ao Wang, Xiaojie Yuan, Kaiwen Sun, Rose Amal, Xiaojing Hao   +12 more
wiley   +1 more source

Rheological and Mechanical Gradient Properties of Polyurethane Elastomers for 3D-Printing with Reactive Additives [PDF]

, 2019
Polyurethane (PU) elastomers with their broad range of strength and elasticity are ideal materials for additive manufacturing of shapes with gradients of mechanical properties.
Auhl, Dietmar, Gerlitzky, Georg, Uhlmann, Eckart, Wagner, Manfred H., Wang, Peng   +4 more
core   +1 more source

Characterization of cellulosic fibers from Morus alba L. stem

Journal of Natural Fibers, 2019
The chemical microstructural, physical, and thermal properties of the Morus alba L. stem fibers (MAFs) are described for the first time in this work. By analyzing the results of chemical composition, it was observed that the cellulose content of the stem
R. Prithivirajan, P. Balasundar, R. Shyamkumar, Naiyf Sulthan Al-Harbi, Shine Kadaikunnan, T. Ramkumar, P. Narayanasamy   +6 more
doaj   +1 more source

Metal‐Organic Framework Embedded Electrospun Fibrous Membranes‐Based Hybrid Nanogenerators with Hierarchical Modified Polyamide Films for Mechanical Energy Harvesting and IoT Applications

Advanced Functional Materials, EarlyView.
Hybrid nanogenerator (HNG) based on a zinc‐metal‐organic framework‐loaded fibrous film integrated with a hierarchically modified nylon film having micropatterns and micropores is fabricated via an electrospinning technique, and its electrical properties are optimized. The HNGs are incorporated into wearable garments and automobile systems for practical
Sontyana Adonijah Graham, Anand Kurakula, Venkata Siva Kavarthapu, Jun Kyu Lee, Punnarao Manchi, Mandar Vasant Paranjape, Jae Su Yu   +6 more
wiley   +1 more source

Synthesis and characterization of hybrid organic-inorganic materials based on sulphonated polyamideimide and silica [PDF]

, 2010
The preparation of hybrid organic–inorganic membrane materials based on a sulphonated polyamideimide resin and silica filler has been studied. The method allows the sol–gel process to proceed in the presence of a high molecular weight polyamideimide,
Anita Hill, BN Dao, Buu Dao, C Sanchez, C Yang, CE Powell, CJ Cornelius, D-J Liaw, DO Hummel, F Orgaz, H Ohya, H Schmidt, J Chiefari, J Livage, Jonathan Hodgkin, JY Ying, LW Keltz, M Khayet, M Ulbricht, Manh Hoang, Q Hu, R Guo, Stephen Gray, WJ Koros, Y Yin, YN Sazanov, Zongli Xie   +26 more
core   +1 more source