A fast route for synthesizing nano-sized ZSM-5 aggregates

2014 ◽  
Vol 2 (48) ◽  
pp. 20667-20675 ◽  
Author(s):  
Feng Pan ◽  
Xuchen Lu ◽  
Qingshan Zhu ◽  
Zhimin Zhang ◽  
Yan Yan ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
Coke Deposition ◽  
Hydrothermal Route ◽  
Fast Route ◽  
Olefin Selectivity ◽  
Excellent Catalytic Performance

Nano-sized ZSM-5 aggregates have been rapidly synthesized from leached metakaolin by solid-like state conversion. Compared with the conventional hydrothermal route, the nano-sized ZSM-5 aggregates obtained by this method showed more excellent catalytic performance, C2–C4 olefin selectivity and longer lifetime to endure coke deposition.

Synthesis of sub-micrometric SAPO-34 by a morpholine assisted two-step hydrothermal route and its excellent MTO catalytic performance

2019 ◽  
Vol 48 (8) ◽  
pp. 2606-2616 ◽  
Author(s):  
Syed ul Hasnain Bakhtiar ◽  
Sher Ali ◽  
Xiaotong Wang ◽  
Fulong Yuan ◽  
Zhibin Li ◽  
...  
Keyword(s):  
Hydrothermal Treatment ◽  
Crystal Size ◽  
Cost Effective ◽  
Catalytic Performance ◽  
Hydrothermal Route ◽  
Light Olefin ◽  
Structure Directing Agent ◽  
Olefin Selectivity

SAPO-34 with a sub-micrometer crystal size was synthesized by a double hydrothermal treatment employing cost-effective morpholine as a structure directing agent, which presented an enhanced catalytic lifetime (nearly 3 times the conventional one) in the reaction of methanol to olefins with a higher light olefin selectivity (total selectivity of 97.1%).

A Smart Hydrothermal Synthesis for Cobble-Like Porous CeO2 and their Superior Catalytic Performance for NH3-SCR of NOx

2017 ◽  
Vol 50 ◽  
pp. 72-77
Author(s):  
Xiao Fei Niu ◽  
Fu Rong Tu
Keyword(s):  
Oxygen Vacancies ◽  
Catalytic Reduction ◽  
Catalytic Performance ◽  
Hydrothermal Route ◽  
Surface Areas ◽  
Scr Of No ◽  
In Situ Drift ◽  
Cubic Structure ◽  
Excellent Catalytic Performance

The almost monodisperse cobble-like CeO2 nanostructures with many pores and a diameter of 50-100 nm have been successfully synthesized by a smart hydrothermal route. XRD, SEM, XPS, BET, and in situ DRIFT were employed to characterize the samples. The results showed that the cobble-like CeO2 owned a fluorite cubic structure and there are Ce3+ ions and oxygen vacancies in surface of samples. Its catalytic activity was investigated by selective catalytic reduction of NOx with NH3. The results showed that cobble-like CeO2 nanostructures exhibit excellent catalytic performance, which can be attributed to the much larger surface areas, novel morphology and the best redox behaviour of surface oxygen on the CeO2 surface.

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

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.

Rational construction of hierarchical SAPO-34 with enhanced MTO performance without an additional meso/macropore template

2021 ◽  
Author(s):  
Yafei Liang ◽  
Beibei Gao ◽  
Lipeng Zhou ◽  
Xiaomei Yang ◽  
Tianliang Lu ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
Mto Reaction ◽  
Rational Construction ◽  
Excellent Catalytic Performance

A facile approach has been developed to fabricate hierarchical SAPO-34 with large intracrystalline meso/macropores and excellent catalytic performance in the MTO reaction.

scholarly journals Fe3 Cluster Anchored on the C2N Monolayer for Efficient Electrochemical Nitrogen Fixation

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 974
Author(s):  
Bing Han ◽  
Haihong Meng ◽  
Fengyu Li ◽  
Jingxiang Zhao
Keyword(s):  
Nitrogen Fixation ◽  
First Principles ◽  
Catalytic Performance ◽  
Reduction Reaction ◽  
First Principles Calculations ◽  
Ammonia Gas ◽  
Nitrogen Reduction ◽  
Single Cluster ◽  
Excellent Catalytic Performance ◽  
Production Of Ammonia

Under the current double challenge of energy and the environment, an effective nitrogen reduction reaction (NRR) has become a very urgent need. However, the largest production of ammonia gas today is carried out by the Haber–Bosch process, which has many disadvantages, among which energy consumption and air pollution are typical. As the best alternative procedure, electrochemistry has received extensive attention. In this paper, a catalyst loaded with Fe3 clusters on the two-dimensional material C2N (Fe3@C2N) is proposed to achieve effective electrochemical NRR, and our first-principles calculations reveal that the stable Fe3@C2N exhibits excellent catalytic performance for electrochemical nitrogen fixation with a limiting potential of 0.57 eV, while also suppressing the major competing hydrogen evolution reaction. Our findings will open a new door for the development of non-precious single-cluster catalysts for effective nitrogen reduction reactions.

Amino-functionalized Cu-MOF for efficient purification of methane from light hydrocarbons and excellent catalytic performance

2019 ◽  
Vol 6 (5) ◽  
pp. 1152-1157 ◽  
Author(s):  
Xia Wang ◽  
Xiurong Zhang ◽  
Kai Zhang ◽  
Xiaokang Wang ◽  
Yutong Wang ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
Light Hydrocarbons ◽  
Excellent Catalytic Performance

Amino-functionalized Cu-MOF for the efficient purification of methane from light hydrocarbons and excellent catalytic performance.

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