A Novel Preparation of Mn/NiCo2O4 Catalyst with High Catalytic Activity on Methane

2021 ◽  
Vol 16 (6) ◽  
pp. 926-932
Author(s):  
Liwen Peng ◽  
Haiwang Wang ◽  
Mengge Lv
Keyword(s):  
Thermal Stability ◽  
Catalytic Activity ◽  
Methane Conversion ◽  
High Catalytic Activity ◽  
Complete Oxidation ◽  
Oxidation Of Methane ◽  
Fecral Alloy ◽  
Conversion Temperature ◽  
Catalysis Process

In this paper, a Mn/NiCo2O4 catalyst was prepared for the complete oxidation of low-concentration methane. When the ratio of Mn: Co is 1:4, the catalyst has the best catalytic activity, and the best methane conversion temperature Feis 400 °C. In addition, the catalytic activity remains stable during the long-term reaction, showing adequate thermal stability. The catalyst is grown on FeCrAl alloy by hydrothermal method to complete the catalytic oxidation of methane. In the catalysis process, the Mn/NiCo2O4-FeCrAl catalyst is energized and the current is directly passed through the alloy substrate to generate Joule heat, reaching the optimal catalytic temperature for complete oxidation of methane.

Thermally stable core–shell Ni/nanorod-CeO2@SiO2 catalyst for partial oxidation of methane at high temperatures

Nanoscale ◽  
2018 ◽  
Vol 10 (29) ◽  
pp. 14031-14038 ◽  
Author(s):  
Shaohong Zhu ◽  
Xinyi Lian ◽  
Tingting Fan ◽  
Zhou Chen ◽  
Yunyun Dong ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Catalytic Activity ◽  
High Temperatures ◽  
Partial Oxidation ◽  
Partial Oxidation Of Methane ◽  
Core Shell ◽  
High Catalytic Activity ◽  
Good Thermal Stability ◽  
Oxidation Of Methane ◽  
Stable Core

Core–shell Ni/nanorod-CeO2@SiO2 catalyst prepared by a microemulsion method shows high catalytic activity and good thermal stability for the partial oxidation of methane.

scholarly journals Cu-doped CoS2 polyhedrons with high catalytic activity and long-term stability

2020 ◽  
Vol 63 (7) ◽  
pp. 1337-1344
Author(s):  
Jie Yin ◽  
Pin Chen ◽  
Minglong Lu ◽  
Lili Song ◽  
Renyun Zhang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
High Catalytic Activity ◽  
Term Stability ◽  
Long Term Stability

Pt/porous nanorods of ceria as efficient high temperature catalysts with remarkable catalytic stability for carbon dioxide reforming of methane

2015 ◽  
Vol 3 (35) ◽  
pp. 18074-18082 ◽  
Author(s):  
Zhiyun Zhang ◽  
Jing Li ◽  
Wei Gao ◽  
Yuanyuan Ma ◽  
Yongquan Qu
Keyword(s):  
Carbon Dioxide ◽  
Thermal Stability ◽  
Catalytic Activity ◽  
Storage Capacity ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
High Catalytic Activity ◽  
Carbon Dioxide Reforming ◽  
Catalytic Stability ◽  
High Oxygen Storage Capacity

Pt/porous nanorods of CeO2 with a large surface area, a high oxygen storage capacity and a remarkable thermal stability exhibit high catalytic activity and stability for the carbon dioxide reforming of methane reaction at 800 °C.

Thermally stable sandwich-type catalysts of Pt nanoparticles encapsulated in CeO2 nanorod/CeO2 nanoparticle core/shell supports for methane oxidation at high temperatures

RSC Advances ◽  
2016 ◽  
Vol 6 (46) ◽  
pp. 40323-40329 ◽  
Author(s):  
Zhiyun Zhang ◽  
Jing Li ◽  
Wei Gao ◽  
Zhaoming Xia ◽  
Yuanbin Qin ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Catalytic Activity ◽  
Methane Oxidation ◽  
High Temperatures ◽  
Pt Nanoparticles ◽  
Core Shell ◽  
High Catalytic Activity ◽  
Thermally Stable ◽  
Sandwich Type ◽  
Nanoparticle Core

A sandwich-type Pt nanocatalyst encapsulated ceria-based core–shell catalyst (CNR@Pt@CNP) was designed and synthesized, which exhibited high catalytic activity and remarkably thermal-stability at high temperatures up to 700 °C.

Effect of acetylacetone metal salts on curing mechanism and thermal stability of polybenzoxazine

2020 ◽  
Vol 32 (8) ◽  
pp. 953-962
Author(s):  
Hongqiang Yan ◽  
Jianan Hu ◽  
Huaqing Wang ◽  
Zuomin Zhan ◽  
Jie Cheng ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Catalytic Activity ◽  
Photoelectron Spectroscopy ◽  
High Water ◽  
Carbon Layer ◽  
Metal Salts ◽  
High Catalytic Activity ◽  
Scanning Calorimetry ◽  
Activity Structure ◽  
Thermal Stability Of

To overcome high water absorption of inorganic metal salts and their poor compatibility with resin, acetylacetone metal salts (M(acac) n) were selected as the catalysts of benzoxazine resin. Their effects on the catalytic activity, structure, and thermal stability of polybenzoxazine had been estimated by dynamic differential scanning calorimetry, in situ Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and thermal gravimetric analyzer. The results revealed that M(acac) n of iron (Fe3+), cobalt (Co3+ and Co2+), and copper (Cu2+) exhibited high catalytic activity and reduced evidently activation energy, especially acetylacetone iron salt. The addition of M(acac) n was beneficial to the formation of Ph–N–Ph structure, which was easy to form a denser carbon layer during thermal degradation, prevented heat transfer and further decomposition of the resin, and finally led to the increase of carbon residue at high temperature.

An effective strategy for preparing nickel nanoparticles encapsulated in polymer matrix-derived carbon shell with high catalytic activity and long-term durability toward urea electro-oxidation

2021 ◽  
Author(s):  
Quang Thien Luong ◽  
Sun Young Kang ◽  
Dohyeon Lee ◽  
Jihyeok Song ◽  
Mohanraju Karuppannan ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Catalytic Activity ◽  
Fuel Cells ◽  
Polymer Matrix ◽  
Nickel Nanoparticles ◽  
High Catalytic Activity ◽  
Effective Strategy ◽  
Practical Application ◽  
Electro Oxidation

Direct urea fuel cells have been recognised as a potential approach for sustainable development. However, the low catalytic activity of urea oxidation has hindered its practical application. Herein, by employing...

scholarly journals Pd4S/SiO2: A Sulfur-Tolerant Palladium Catalyst for Catalytic Complete Oxidation of Methane

Catalysts ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 410 ◽  
Author(s):  
Ma ◽  
Yuan ◽  
Jiang ◽  
Zhu ◽  
Lu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Photoelectron Spectroscopy ◽  
Palladium Catalysts ◽  
Oxidation Stability ◽  
Complete Oxidation ◽  
Sulfur Tolerance ◽  
Sulfur Species ◽  
X Ray ◽  
Oxidation Of Methane ◽  
Temperature Programmed

Sulfur species (e.g. H2S or SO2) are the natural enemies of most metal catalysts, especiallypalladium catalysts. The previously reported methods of improving sulfur-tolerance were toeffectively defer the deactivation of palladium catalysts, but could not prevent PdO and carrierinteraction between sulfur species. In this report, novel sulfur-tolerant SiO2 supported Pd4Scatalysts (5 wt. % Pd loading) were prepared by H2S–H2 aqueous bubble method and applied tocatalytic complete oxidation of methane. The catalysts were characterization by X-ray diffraction,Transmission electron microscopy, X-ray photoelectron Spectroscopy, temperature-programmedoxidation, and temperature-programmed desorption techniques under identical conditions. Thestructural characterization revealed that Pd4S and metallic Pd0 were found on the surface of freshlyprepared catalysts. However, Pd4S remained stable while most of metallic Pd0 was converted toPdO during the oxidation reaction. When coexisting with PdO, Pd4S not only protected PdO fromsulfur poisoning, but also determined the catalytic activity. Moreover, the content of Pd4S could beadjusted by changing H2S concentration of H2S–H2 mixture. When H2S concentration was 7 %, thePd4S/SiO2 catalyst was effective in converting 96% of methane at the 400 °C and also exhibitedlong-term stability in the presence of 200 ppm H2S. A Pd4S/SiO2 catalyst that possesses excellentsulfur-tolerance, oxidation stability, and catalytic activity has been developed for catalyticcomplete oxidation of methane.

Interfacial reaction-directed synthesis of a ceria nanotube-embedded ultra-small Pt nanoparticle catalyst with high catalytic activity and thermal stability

2016 ◽  
Vol 4 (37) ◽  
pp. 14148-14154 ◽  
Author(s):  
Yong Wang ◽  
Guolong Song ◽  
Zhenhe Xu ◽  
Federico Rosei ◽  
Dongling Ma ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Catalytic Activity ◽  
Co Oxidation ◽  
Interfacial Reaction ◽  
High Catalytic Activity ◽  
Pt Nanoparticle ◽  
Directed Synthesis ◽  
Nanoparticle Catalyst

Due to the ultra-small size of Pt NPs and the extensive contact between Pt and ceria, the ceria nanotube-embedded ultra-small Pt nanoparticle catalyst exhibits remarkable catalytic activity and thermal stability toward CO oxidation.

scholarly journals Thermo-Catalytic Methane Decomposition for Hydrogen Production: Effect of Palladium Promoter on Ni-based Catalysts

2016 ◽  
Vol 11 (2) ◽  
pp. 191 ◽  
Author(s):  
Irene Lock Sow Mei ◽  
S.S.M. Lock ◽  
Dai-Viet N. Vo ◽  
Bawadi Abdullah
Keyword(s):  
Thermal Stability ◽  
Catalytic Activity ◽  
Hydrogen Production ◽  
Methane Conversion ◽  
Methane Decomposition ◽  
Promising Alternative ◽  
Production Effect ◽  
Operational Lifetime ◽  
Decomposition Of Methane ◽  
Thermal Stability Of

<p>Hydrogen production from the direct thermo-catalytic decomposition of methane is a promising alternative for clean fuel production. However, thermal decomposition of methane can hardly be of any practical and empirical interest in the industry unless highly efficient and effective catalysts, in terms of both catalytic activity and operational lifetime have been developed. In this study, the effect of palladium (Pd) as a promoter onto Ni supported on alumina catalyst has been investigated by using co-precipitation technique. The introduction of Pd promotes better catalytic activity, operational lifetime and thermal stability of the catalyst. As expected, highest methane conversion was achieved at reaction temperature of 800 °C while the bimetallic catalyst (1 wt.% Ni -1wt.% Pd/Al<sub>2</sub>O<sub>3</sub>) gave the highest methane conversion of 70% over 15 min of time-on-stream (TOS). Interestingly, the introduction of Pd as promoter onto Ni-based catalyst also has a positive effect on the operational lifetime and thermal stability of the catalyst as the methane conversion has improved significantly over 240 min of TOS. Copyright © 2016 BCREC GROUP. All rights reserved</p><p><em>Received: 21<sup>st</sup> January 2016; Revised: 6<sup>th</sup> February 2016; Accepted: 6<sup>th</sup> March 2016</em></p><p><strong>How to Cite:</strong> Mei, I.L.S., Lock, S.S.M., Vo, D.V.N., Abdullah, B. (2016). Thermo-Catalytic Methane Decomposition for Hydrogen Production: Effect of Palladium Promoter on Ni-based Catalysts. Bulletin of Chemical Reaction Engineering &amp; Catalysis, 11 (2): 191-199 (doi:10.9767/bcrec.11.2.550.191-199)</p><p><strong>Permalink/DOI:</strong> http://dx.doi.org/10.9767/bcrec.11.2.550.191-199</p>

Solution synthesis of core–shell Co9S8@MoS2 catalysts

2016 ◽  
Vol 6 (13) ◽  
pp. 4901-4909 ◽  
Author(s):  
A. Hadj-Aïssa ◽  
F. Dassenoy ◽  
C. Geantet ◽  
P. Afanasiev
Keyword(s):  
Thermal Stability ◽  
Catalytic Activity ◽  
Ethylene Glycol ◽  
Core Shell ◽  
High Catalytic Activity ◽  
Solution Synthesis ◽  
Unsupported Catalysts ◽  
Solution Reaction ◽  
Mos2 Catalysts

Core–shell Co9S8@MoS2 unsupported catalysts prepared by a solution reaction in ethylene glycol demonstrate high catalytic activity and exceptional thermal stability.

Sign in / Sign up

Export Citation Format

Share Document