The development of novel Au/CaO nanoribbons from bifunctional building block for biodiesel production

Nanoscale ◽  
2017 ◽  
Vol 9 (41) ◽  
pp. 15990-15997 ◽  
Author(s):  
Jiajia Zhang ◽  
Fang Cui ◽  
Linxu Xu ◽  
Xinzi Pan ◽  
Xiaoqiang Wang ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Uniform Distribution ◽  
Building Block ◽  
Catalytic Performance ◽  
Transesterification Reaction ◽  
Biodiesel Production ◽  
Dual Metal ◽  
Excellent Catalytic Performance

Au/CaO nanoribbons with uniform distribution of dual metal nanoparticles were fabricated, which exhibited excellent catalytic performance in the transesterification reaction.

Janus building block-enabled fabrication of dual metal equipped coordination polymers: an ideal precursor for noble metal/metal oxide nanocomposites with excellent catalytic performance

2015 ◽  
Vol 3 (40) ◽  
pp. 20073-20079 ◽  
Author(s):  
Fang Cui ◽  
Qing Shao ◽  
Tieyu Cui ◽  
Linxu Xu ◽  
Tongjie Yao ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Metal Oxide ◽  
Metal Ions ◽  
Noble Metal ◽  
Coordination Polymers ◽  
Building Block ◽  
Catalytic Performance ◽  
Metal Metal ◽  
Dual Metal ◽  
Excellent Catalytic Performance

Coordination polymer nanoribbons equipped with dual metal ions are fabricated by using a Janus building block.

Study of the Ca2Fe2O5 Perovskite Synthesis from Waste Sources and Application as Heterogeneous Catalyst For Biodiesel Production

2021 ◽  
Vol 47 (1) ◽  
pp. 181-187
Author(s):  
Juarez Hilleshein Júnior ◽  
Alexandre de Faria Lima ◽  
Mário Sérgio da Luz ◽  
Geoffroy Roger Pointer Malpass ◽  
Letícia Leandro Rade ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Ferrous Metal ◽  
Catalytic Performance ◽  
Transesterification Reaction ◽  
Biodiesel Production ◽  
Molar Ratio ◽  
Calcium Ferrite ◽  
Basic Force ◽  
Different Origins ◽  
Basic Strength

The use of chicken eggshells and ferrous metal waste were evaluated as feedstock for the synthesis of Ca2Fe2O5 perovskite. The solid Ca2Fe2O5 obtained was applied as heterogeneous catalyst in the transesterification reaction of soybean oil with methanol for biodiesel production. The calcium ferrite (Ca2Fe2O5) obtained from waste materials was formed at temperatures above 898 K and its basic force was very similar to that one presented in the same structure obtained using high-purity reagents. The formation of the Ca2Fe2O5/CaO system occurred for both catalysts at higher temperatures. The catalysts Ca2Fe2O5lab and Ca2Fe2O5res presented the same basic strength, 0.469 and 0.473 mmol/g, respectively. This fact indicates that both cata- lysts have similar structures even though they were prepared with very different origins of reagents. Besides that, the residual Ca2Fe2O5 perovskite showed a good catalytic performance in the transesterification reaction. The transesterification reaction led to yields of biodiesel greater than 80 %, at 333 K, methanol to oil molar ratio of 3:1 and 10 h of batch reaction.

Fabrication and Excellent Catalytic Performance of Three-dimensional Ordered Mesoporous Molybdenum Oxides

2014 ◽  
Vol 29 (2) ◽  
pp. 124-130 ◽  
Author(s):  
Yu-Cheng DU ◽  
Guang-Wei ZHENG ◽  
Qi MENG ◽  
Li-Ping WANG ◽  
Hai-Guang FAN ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Catalytic Performance ◽  
Molybdenum Oxides ◽  
Ordered Mesoporous ◽  
Excellent Catalytic Performance

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.

Co a Sm b O x Catalyst with Excellent Catalytic Performance for NH 3 Decomposition

2021 ◽  
Author(s):  
Cui‐Ping Wu ◽  
Zhao Jin ◽  
Kai Xu ◽  
Wei‐Wei Wang ◽  
Chun‐Jiang Jia
Keyword(s):  
Catalytic Performance ◽  
Excellent Catalytic Performance

PtPd nanoframes derived from Pd@PdPt core–shell rhombic dodecahedrals with excellent catalytic performance toward methanol oxidation

2021 ◽  
Author(s):  
Yangyang Ren ◽  
Chuanliang Li ◽  
Baosong Li ◽  
Fan Gao ◽  
Xinghua Zhang ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Catalytic Properties ◽  
Catalytic Performance ◽  
Core Shell ◽  
Acid Environment ◽  
Excellent Catalytic Performance

PtPd nanoframes with excellent catalytic properties were obtained by etching Pd@PdPt core–shell RDs with Fe3+ in an acid environment.

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