Methanol‐to‐Olefins Reaction over Large‐Pore Zeolites: Impact of Pore Structure on Catalytic Performance

2021 ◽  
Author(s):  
Sungsik Park ◽  
Gakuji Sato ◽  
Ryota Osuga ◽  
Yong Wang ◽  
Yoshihiro Kubota ◽  
...  
Keyword(s):  
Pore Structure ◽  
Catalytic Performance ◽  
Large Pore ◽  
Large Pore Zeolites

Transalkylation of 1,2,4-trimethylbenzene with toluene over large pore zeolites: Role of pore structure and acidity

2020 ◽  
Vol 608 ◽  
pp. 117886
Author(s):  
Faisal M. Almulla ◽  
Syed A. Ali ◽  
Mohammed R. Aldossary ◽  
Essa I. Alnaimi ◽  
Abdulrahman bin Jumah ◽  
...  
Keyword(s):  
Pore Structure ◽  
Large Pore ◽  
Large Pore Zeolites

Efficient Production of Biodiesel Catalyzed by Acidic Nanoporous Carbon Materials：A Review

2020 ◽  
Vol 16 ◽  
Author(s):  
Anping Wang ◽  
Heng Zhang ◽  
Hu Li ◽  
Song Yang
Keyword(s):  
Pore Structure ◽  
Active Sites ◽  
Catalytic Performance ◽  
Nanoporous Carbon ◽  
Biodiesel Production ◽  
Efficient Production ◽  
Fossil Energy ◽  
Catalytic Materials ◽  
High Acid ◽  
Carbon Based

Background: With the gradual decrease of fossil energy, the development of alternatives to fossil energy has attracted more and more attention. Biodiesel is considered to be the most potent alternative to fossil energy, mainly due to its green, renewable and biodegradable advantages. The stable, efficient and reusable catalysts are undoubtedly the most critical in the preparation of biodiesel. Among them, nanoporous carbon-based acidic materials are very important biodiesel catalysts. Objective: The latest advances of acidic nanoporous carbon catalysts in biodiesel production was reviewed. Methods: Biodiesel is mainly synthesized by esterification and transesterification. Due to the important role of nanoporous carbon-based acidic materials in the catalytic preparation of biodiesel, we focused on the synthesis, physical and chemical properties, catalytic performance and reusability. Results: Acidic catalytic materials have a good catalytic performance for high acid value feedstocks. However, the preparation of biodiesel with acid catalyst requires relatively strict reaction conditions. The application of nanoporous acidic carbon-based materials, due to the support of carbon-based framework, makes the catalyst have good stability and unique pore structure, accelerates the reaction mass transfer speed and accelerates the reaction. Conclusion: Nanoporous carbon-based acidic catalysts have the advantages of suitable pore structure, high active sites, and high stability. In order to make these catalytic processes more efficient, environmentally friendly and low cost, it is an important research direction for the future biodiesel catalysts to develop new catalytic materials with high specific surface area, suitable pore size, high acid density, and excellent performance.

Quantitative Coassembly for Precise Synthesis of Mesoporous Nanospheres with Pore Structure‐Dependent Catalytic Performance

2021 ◽  
pp. 2103130
Author(s):  
Shu‐Chuan Mei ◽  
Xian‐Hong Rui ◽  
Liang Li ◽  
Gui‐Xiang Huang ◽  
Xiao‐Qiang Pan ◽  
...  
Keyword(s):  
Pore Structure ◽  
Catalytic Performance

Catalytic conversions of linalool and linalyl acetate over large-pore zeolites and mesoporous MCM-41

2007 ◽  
Vol 62 (4) ◽  
pp. 180-186 ◽  
Author(s):  
Ts. M. Ramishvili ◽  
V. V. Yushchenko ◽  
M. K. Charkviani
Keyword(s):  
Linalyl Acetate ◽  
Large Pore ◽  
Large Pore Zeolites ◽  
Mcm 41

Methane Partial Oxidation over [Cu2(μ-O)]2+ and [Cu3(μ-O)3]2+ Active Species in Large-Pore Zeolites

ACS Catalysis ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 1500-1509 ◽  
Author(s):  
M. Haris Mahyuddin ◽  
Takahiro Tanaka ◽  
Yoshihito Shiota ◽  
Aleksandar Staykov ◽  
Kazunari Yoshizawa
Keyword(s):  
Partial Oxidation ◽  
Active Species ◽  
Methane Partial Oxidation ◽  
Large Pore ◽  
Large Pore Zeolites

Ultrasensitive colorimetric detection of Hg2+ ions based on enhanced catalytic performance of gold amalgam dispersed in channels of rose petals

The Analyst ◽  
2019 ◽  
Vol 144 (4) ◽  
pp. 1205-1209 ◽  
Author(s):  
Chi Zhang ◽  
Caiyun Kong ◽  
Qingyun Liu ◽  
Zhengbo Chen
Keyword(s):  
Gold Nanoparticles ◽  
Pore Structure ◽  
Low Cost ◽  
Colorimetric Detection ◽  
Catalytic Performance ◽  
Mercury Ions ◽  
Colorimetric Sensing ◽  
Rose Petals

We herein present a simple, low-cost, and ultrasensitive colorimetric sensing strategy for the detection of mercury ions (Hg2+) that takes advantage of the natural pore structure in rose petals to encapsulate gold nanoparticles (AuNPs).

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