Zeolite ZSM-5 was purchased from Sigma Aldrich (St. Louis, MO, USA). A weight of 100 g of ZSM-5 was mixed with 400 mL of ammonium nitrate (1 mol L−1) (Fisher, Polk County, MN, USA) and the mixture was heated at 80 °C for 1 h using a rotary evaporator (Biobase model RE100-Pro) with continuous stirring at 60 rpm, which allowed us to increase the protonation of the zeolite before its impregnation. After that, several washes with distilled water were performed and excess solvent was removed by vacuum filtration. The obtained solid was dried at 120 °C for 2 h and then consecutively calcined at 250 °C for one hour, at 400 °C for an additional hour and finally for 12 h at 500 °C.
Zsm 5
Manufactured by Thermo Fisher Scientific
Sourced in United States
ZSM-5 is a synthetic zeolite material primarily used as a catalyst in various industrial processes. It has a unique microporous structure with a high surface area and acidity, making it effective for processes such as petroleum refining, petrochemical production, and environmental remediation. The core function of ZSM-5 is to act as a molecular sieve and catalyst, enabling efficient chemical transformations.
Automatically generated - may contain errors
Lab products found in correlation
Ammonium nitrate, by Thermo Fisher Scientific (1 mentions)
Re 100 pro, by Biobase (1 mentions)
Methyl tert butyl ether (mtbe), by Thermo Fisher Scientific (1 mentions)
Hydrochloric acid (hcl), by Thermo Fisher Scientific (1 mentions)
Sodium hydroxide (naoh), by Thermo Fisher Scientific (1 mentions)
Collidine, by Merck Group (1 mentions)
Pyridine, by Thermo Fisher Scientific (1 mentions)
Synthetic air, by Air Liquide (1 mentions)
4 protocols using zsm 5
1
Protonation and Calcination of ZSM-5 Zeolite
2
ZSM-5 Characterization and Catalysis
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
MTBE and ZSM-5 were purchased from Fisher Scientific and Acros Organics, respectively.
The physicochemical properties of ZSM-5 were obtained from the supplier and are given in Table 1. Figure 1 was adapted [18] and presented the molecular structure and dimensions of ZSM-5. There are two pore systems in ZSM-5, one consisting of zig-zag channels of the near-circular cross-section and another consisting of straight channels of the elliptical shape.
Other chemicals used (HCl, NaOH, NiSO 4 •6H 2 O) were obtained from Fisher Scientific with A.R. grade.
The physicochemical properties of ZSM-5 were obtained from the supplier and are given in Table 1. Figure 1 was adapted [18] and presented the molecular structure and dimensions of ZSM-5. There are two pore systems in ZSM-5, one consisting of zig-zag channels of the near-circular cross-section and another consisting of straight channels of the elliptical shape.
Other chemicals used (HCl, NaOH, NiSO 4 •6H 2 O) were obtained from Fisher Scientific with A.R. grade.
3
Hydrophobic Zeolite Synthesis and Characterization
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Material synthesis and characterisation. ZIF-8 was purchased from Aldrich Sigma (Basolite® Z1200). Other ZIFs were synthesized using chemical compounds without further purification following the protocols outlined in Supplementary Section S1.2.
Zeolites ZSM-5, zeolite-𝛽, and mordenite were purchased from Alfa Aesar (45883, 45875, 45877 respectively). All of them were heated at 1,000 °C for 3 h and cooled in air, in order to obtain higher hydrophobicity before use. The chabazite was obtained from Johnson-Matthey (1318-02-1 22:1 CHA) and was heated at 950 °C for 3 h before use. This heat treatment procedure can increase the Si/Al ratio through dealumination, and therefore has been established as an efficient way to enhance the hydrophobicity of zeolites. 41, 42 The effect of different heat treatment conditions on their water intrusion behaviours is shown in Supplementary Section S11.6. Microscopy imaging and X-ray diffraction of the synthesized samples were performed, and results are shown in Supplementary Section S1.3-14 and S2.6.
Zeolites ZSM-5, zeolite-𝛽, and mordenite were purchased from Alfa Aesar (45883, 45875, 45877 respectively). All of them were heated at 1,000 °C for 3 h and cooled in air, in order to obtain higher hydrophobicity before use. The chabazite was obtained from Johnson-Matthey (1318-02-1 22:1 CHA) and was heated at 950 °C for 3 h before use. This heat treatment procedure can increase the Si/Al ratio through dealumination, and therefore has been established as an efficient way to enhance the hydrophobicity of zeolites. 41, 42 The effect of different heat treatment conditions on their water intrusion behaviours is shown in Supplementary Section S11.6. Microscopy imaging and X-ray diffraction of the synthesized samples were performed, and results are shown in Supplementary Section S1.3-14 and S2.6.
4
Activation of ZSM-5 Zeolites for Catalysis
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Pyridine (99%) was obtained from Alfa Aesar. Collidine (99%) was obtained from Sigma Aldrich. All chemicals were used as supplied. Several ZSM5 samples with various SAR (SiO 2 /Al 2 O 3 ) values of 23, 30, 50, 80 and 300 were purchased from Alfa Aesar in the NH 4 + form. Zeolite samples were calcined in a furnace with synthetic air (100 cm 3 min -1 , Air Liquide) at 773 K for 4 h to convert from the NH 4 + to the H + form, termed HZSM5. Heating and cooling were carried out at 5 K min -1 . Samples were named according to their SAR, as supplied by Alfa Aesar, and denoted as HZSM5 (SAR). The surface area of these samples is in the range 400 -425 m 2 g -1 , as stated by Alfa Aesar. Additionally, Sand (SiO 2 , 50 -70 mesh particle size) was obtained from Sigma-Aldrich.
About PubCompare
Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.
We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.
However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.
Ready to get started?
Sign up for free.
Registration takes 20 seconds.
Available from any computer
No download required
Revolutionizing how scientists
search and build protocols!