نتایج جستجو برای: Hydrotalcite-derived Catalysts

تعداد نتایج: 513488  

Journal: :Journal of colloid and interface science 2009
Jun Jie Yu Jie Cheng Chun Yan Ma Hai Lin Wang Lan Dong Li Zheng Ping Hao Zhi Ping Xu

Effective control and removal of nitrogen oxides (NO(x)) emission from vehicles exhausts under lean-burn condition is one of the most important targets in scientific research of environmental protection. A comprehensive introduction of NO(x) storage and reduction (NSR), the most promising lean-NO(x) control technology, is given including the sum-up of NSR materials, catalytic activity and relat...

Journal: :Nanoscale 2013
Xianjun Du Dengsong Zhang Liyi Shi Ruihua Gao Jianping Zhang

Monolithic catalysts derived from in situ supported hydrotalcite-like films on Al wires display high resistance to coke formation and sintering in the dry reforming of methane due to their hierarchical porous structure, well dispersed metallic nickel species, more basic sites and strong metal-support interaction effect.

2002
N N DAS S C SRIVASTAVA

Hydrotalcite like precursors containing Pd–Mg–Al with varying molar ratios, (Pd + Mg)/Al ≈ 3 and Mg/Pd ≈ 750 to 35, were prepared by coprecipitation of metal nitrates at constant pH. Characterization of samples as synthesized and their calcined products by elemental analyses, powder XRD, TG–DTA, FT–IR spectroscopy, TPR and N2 physisorption indicated a well crystalline hydrotalcite like structur...

Journal: :Transactions of Tianjin University 2022

Abstract With the world’s fossil fuels being finite in nature, an increasing interest focuses on application of alternative renewable resources such as biomass. Biomass-derived platform chemicals with abundant functional groups have potential to replace bulk for production value-added chemicals, fuels, and materials. The upgrading these relies development efficient catalytic systems. Hydrotalci...

Journal: :ACS Catalysis 2021

By introducing Pt atoms into the surface of reduced hydrotalcite (HT)-derived nickel (Ni/HT) catalysts by redox reaction, we synthesized an enhanced active and stable Ni-based catalyst for methane ...

Journal: :Molecules 2010
Kiyotomi Kaneda Takato Mitsudome Tomoo Mizugaki Koichiro Jitsukawa

In this review, we describe the development by our research group of highly functionalized heterogeneous Olympic medal metal (gold, silver, and copper) nanoparticle catalysts using hydrotalcite as a support, aimed towards Green and Sustainable Chemistry. Olympic medal metal nanoparticles can cooperate with the basic sites on the hydrotalcite surface, providing unique and high performance cataly...

2014
Amaury Pérez-Verdejo Alvaro Sampieri Heriberto Pfeiffer Mayra Ruiz-Reyes Juana-Deisy Santamaría Geolar Fetter

This work presents two easy ways for preparing nanostructured mesoporous composites by interconnecting and combining SBA-15 with mixed oxides derived from a calcined Mg-Al hydrotalcite. Two different Mg-Al hydrotalcite addition procedures were implemented, either after or during the SBA-15 synthesis (in situ method). The first procedure, i.e., the post-synthesis method, produces a composite mat...

Journal: :Chemical communications 2010
Wenhao Fang Qinghong Zhang Jing Chen Weiping Deng Ye Wang

Hydrotalcite-supported gold nanoparticles with sizes of less than 5 nm are highly efficient and reusable catalysts for the oxidant-free dehydrogenation of alcohols to carbonyl compounds and hydrogen.

Journal: :Molecules 2010
Beixiao Zhang Lu Lin Junping Zhuang Ying Liu Lincai Peng Longfei Jiang

A series of Ni-based catalysts were prepared using hydrogen reduction of Ni/Al hydrotalcite-like compounds (Ni/Al HTlcs) synthesized by coprecipitation. The physico-chemical properties of Ni/Al hydrotalcite-like compounds and the corresponding Ni-based catalysts were characterized using inductively coupled plasma (ICP), BET surface areas, X-ray diffraction (XRD), Fourier transform infrared (FTI...

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