Mid-temperature CO Adsorption over Different Alkaline Sorbents Dispersed over Mesoporous AlO.

CO adsorbents comprising various alkaline sorption active phases supported on mesoporous AlO were prepared. The materials were tested regarding their CO adsorption behavior in the mid-temperature range, i.e.

CO Physisorption over an Industrial Molecular Sieve Zeolite: An Experimental and Theoretical Approach.

The present work studies the adsorption of CO using a zeolitic industrial molecular sieve (IMS) with a high surface area. The effect of the CO feed concentration and the adsorption temperature in conjunction with multiple adsorption-desorption cycles was experimentally investigated. To assess the validity of the experimental results, theoretical calculations based on well-established equations were employed and the values of equilibrium, kinetic, and thermodynamic parameters are presented.

Different reactor configurations for enhancement of CO methanation.

Greenhouse gas emissions are a massive concern for scientists to minimize the effect of global warming in the environment. In this study, packed bed, coated wall, and membrane reactors were investigated using three novel nickel catalysts for the methanation of CO. CFD modelling methodologies were implemented to develop 2D models.

Nanoparticle Exsolution from Nanoporous Perovskites for Highly Active and Stable Catalysts.

Nanoporosity is clearly beneficial for the performance of heterogeneous catalysts. Although exsolution is a modern method to design innovative catalysts, thus far it is predominantly studied for sintered matrices. A quantitative description of the exsolution of Ni nanoparticles from nanoporous perovskite oxides and their effective application in the biogas dry reforming is here presented.

Bimetallic Exsolved Heterostructures of Controlled Composition with Tunable Catalytic Properties.

In this paper, we show how the composition of bimetallic Fe-Ni exsolution can be controlled by the nature and concentration of oxygen vacancies in the parental matrix and how this is used to modify the performance of CO-assisted ethane conversion. Mesoporous A-site-deficient LaSrTiFeNiO (0 ≤ α ≤ 0.2) perovskites with substantial specific surface area (>40 m/g) enabled fast exsolution kinetics ( < 500 °C, < 1 h) of bimetallic Fe-Ni nanoparticles of increasing size (3-10 nm).

Bimetallic Ni-Based Catalysts for CO Methanation: A Review.

CO methanation has recently emerged as a process that targets the reduction in anthropogenic CO emissions, via the conversion of CO captured from point and mobile sources, as well as H produced from renewables into CH. Ni, among the early transition metals, as well as Ru and Rh, among the noble metals, have been known to be among the most active methanation catalysts, with Ni being favoured due to its low cost and high natural abundance. However, insufficient low-temperature activity, low dispersion and reducibility, as well as nanoparticle sintering are some of the main drawbacks when using Ni-based catalysts.