Results 81 to 90 of about 162,188 (303)

Selective Hydrogenation of Formamide to Methanol Over Supported Platinum Catalysts

Angewandte Chemie, EarlyView.
Amine–CO2 adducts can be hydrogenated to formamides and subsequently to methanol under mild conditions (<150°C), establishing an integrated CO2 capture‐and‐conversion route in a heterogeneous system that directly links amine sorbent cycling with methanol synthesis.
Xuetao Qin, XinXin Tian, Shou Qiu, Han Yan, Haijun Jiao, Henrik Junge, Matthias Beller   +6 more
wiley   +2 more sources

Optical Properties of ZnP2 Nanoparticles in Zeolite [PDF]

, 2004
We report that for the first time the nanoparticles of II-V semiconductor (ZnP2) were prepared and studied. ZnP2 nanoparticles were prepared by incorporation into zeolite Na-X matrix. Absorption, diffuse reflection (DR) and photoluminescence (PL) spectra
Armelao, Bogomolov, Connerade, Corma, Dabbousi, Flores-Acosta, Franceschetti, Gorban, I.M. Dmitruk, I.P. Pundyk, Kasuya, Kayanuma, Kroto, Kumbhojkar, Misic, Motte, O.A. Yeshchenko, S.V. Koryakov, Stucky, Tang, Yu.A. Barnakov   +20 more
core   +1 more source

Hierarchically Soft Porous MOF‐Polymer Monolith for Fast and Large‐Scale Moisture Buffering

Advanced Science, EarlyView.
A soft, hierarchical porous monolith that combines metal–organic frameworks (MOFs) with a thermoresponsive polymer matrix enables rapid, large‐scale moisture buffering. The synergistic interface facilitates high‐capacity water capture and low‐energy release for sustainable indoor dehumidification.
Guangxin Ma, Xin Zhou, Weiman Li, Ken‐ichi Otake, Susumu Kitagawa, Xiaoze Wang, Mengjie Cao, Linfeng Nie, Ming‐Shui Yao, Yunfa Chen   +9 more
wiley   +1 more source

Preparation and wastewater treatment performance of zeolite-modified ecological concrete

Open Chemistry
This study developed a zeolite-modified ecological concrete and investigated the effects of zeolite content and particle size on its physical and mechanical properties, as well as its degradation performance.
Liu Zhiwu, Zhang Xiaoyang, Lai Shengbin, Yao Yonghe, Zhu Xuyang   +4 more
doaj   +1 more source

Synthesis and characterisation of zeolite-A and Zn-exchanged zeolite-A based on natural aluminosilicates and their potential applications

Cogent Engineering, 2018
Zeolites have been hydrothermally synthesized using alumina and silica based deposits (kaolin, bauxite, silica and feldspar) sampled from three regions in Ghana and the chemical compositions of the zeolites varied by batch formulations.
Emmanuel Nyankson, Johnson Kwame Efavi, Abu Yaya, Gloria Manu, Kingsford Asare, Joseph Daafuor, Richard Yeboah Abrokwah   +6 more
doaj   +1 more source

Radiation‐Resistant Kr‐Selective MOF With Record Kr/Xe Selectivity at Elevated Pressure

Advanced Science, EarlyView.
ABSTRACT The separation of Kr/Xe from spent nuclear fuel off‐gas is critical, yet most current adsorbents exhibit Xe‐Kr co‐adsorption under elevated pressures, posing challenges for industrial pressure swing adsorption processes. Herein, we present and evaluate a metal‐organic framework, CALF‐20M‐w, engineered for molecular sieving separation of Kr/Xe ...
Qihang Tian, Yinhui Li, Qingkuan Meng, Shizhen Liu, Yongzheng Wang, Bin Chen, Heping Ma   +6 more
wiley   +1 more source

Consequences of Medium‐Pore Zeolite Constraints for Alkene Cracking—The Case of n‐Pentene

Angewandte Chemie, EarlyView.
Alkene cracking in medium‐pore zeolites is governed by a balance of enthalpic and entropic effects. Intrinsic barriers are quantified and shown to be lower than for alkanes due to stabilization of carbenium‐ion‐like transition states. Confinement and extra‐framework aluminum modulate reactivity by tuning transition‐state energetics, providing a ...
Ruixue Zhao, Stefan Schallmoser, Gary L. Haller, Maricruz Sanchez‐Sanchez, Johannes A. Lercher   +4 more
wiley   +2 more sources

Autogenous shrinkage of zeolite cement pastes with low water-binder ratio [PDF]

, 2015
Self-desiccation is one common phenomenon of high-performance cementitious materials characterized by low water to cementitious material ratio (w/c).
De Schutter, Geert, Huang, Hao, Lyu, Yang, Ye, Guang   +3 more
core   +1 more source

Efficient approach for the computational study of alcohol and nitrile adsorption in H-ZSM-5 [PDF]

, 2012
Since many industrially important processes start with the adsorption of guest molecules inside the pores of an acidic zeolite catalyst, a proper estimate of the adsorption enthalpy is of paramount importance.
Hemelsoet, Karen, Van der Mynsbrugge, Jeroen, Van Speybroeck, Veronique, Vandichel, Matthias, Waroquier, Michel   +4 more
core   +2 more sources

Autonomous and Continuous Atmospheric Water Harvesting Using Modified Wood

Advanced Science, EarlyView.
A rigid, hydroxyl‐rich wood skeleton with graded channels is used as a multifunctional host to co‐incorporate a PNipam/PAA network and LiCl, creating a high‐performance sorbent for atmospheric water harvesting. The composite achieves rapid sorption, efficient low‐temperature desorption, and stable cycling, enabling a solar‐powered device with a high ...
Shiheng He, Jiaqi Su, Tianting Leng, Yujian Song, Jidong Dong, Pengfei Huo, Zhenhua Gao, Shuaiyuan Han   +7 more
wiley   +1 more source