Core-shell and Egg-shell Zeolite Catalysts for Enhanced Hydrocarbon Processing

Objective of study was the development of core-shell type ZnS-CdS photocatalyst with the stratified morphology. To form the stratified morphology, condition of the precursor is extremely important. For this purpose, three types of precursors, thus core-shell type, egg-shell type and uniform type, was tried to synthesize by utilizing the results of the calculation. The size of the synthesized precursor particles was about 40-100 nm. Main phase of the particle was gradually changed from ZnO (pH8.0) to Cd(OH)2 (pH9.5). Detailed analysis of the synthesized precursor was clearly demonstrated that these have the crystalline structure and each metal element was co-existed in one particle. Therefore, it could be concluded that core-shell type or uniform type precursor was successfully synthesized. Core-shell type ZnS-CdS stratified photocatalyst could be successfully synthesized by sulfurization for 1h, and it shows the high photocatalytic activity under visible light irradiation.

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Novel core-shell-like Ni-supported hierarchical beta zeolite catalysts on bioethanol steam reforming

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2020.04.109 ◽

2020 ◽

Vol 45 (33) ◽

pp. 16409-16420 ◽

Cited By ~ 1

Author(s):

Shiyao Wang ◽

Bo He ◽

Ren Tian ◽

Xu Wu ◽

Xia An ◽

...

Keyword(s):

Steam Reforming ◽

Zeolite Catalysts ◽

Beta Zeolite ◽

Core Shell ◽

Hierarchical Beta

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Core–Shell Structured Zeolite Catalysts with Minimal Defects for Improvement of Shape Selectivity

Core-Shell and Yolk-Shell Nanocatalysts - Nanostructure Science and Technology ◽

10.1007/978-981-16-0463-8_12 ◽

2021 ◽

pp. 187-198

Author(s):

Masaki Okamoto

Keyword(s):

Shape Selectivity ◽

Zeolite Catalysts ◽

Core Shell

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Core–Shell Structured Zeolite Catalysts with Enhanced Shape Selectivity

Core-Shell and Yolk-Shell Nanocatalysts - Nanostructure Science and Technology ◽

10.1007/978-981-16-0463-8_11 ◽

2021 ◽

pp. 181-186

Author(s):

Koji Miyake ◽

Norikazu Nishiyama

Keyword(s):

Shape Selectivity ◽

Zeolite Catalysts ◽

Core Shell

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High-value utilization of egg shell to synthesize Silver and Gold–Silver core shell nanoparticles and their application for the degradation of hazardous dyes from aqueous phase-A green approach

Journal of Colloid and Interface Science ◽

10.1016/j.jcis.2015.04.053 ◽

2015 ◽

Vol 453 ◽

pp. 115-131 ◽

Cited By ~ 33

Author(s):

Tanur Sinha ◽

M. Ahmaruzzaman

Keyword(s):

Aqueous Phase ◽

Core Shell ◽

Shell Nanoparticles ◽

Green Approach ◽

Gold Silver ◽

Egg Shell ◽

Core Shell Nanoparticles ◽

Silver Core

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Advances in ultramicrotomy for physical sciences applications

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100149386 ◽

1993 ◽

Vol 51 ◽

pp. 710-711

Author(s):

G. McMahon ◽

T. Malis

Keyword(s):

Particle Surface ◽

Zeolite Catalysts ◽

Physical Sciences ◽

Pull Out ◽

Large Particles ◽

Novel Applications ◽

Metal Wires ◽

Frequent Problem ◽

Specific Orientation ◽

Diamond Knife

As with all techniques which are relatively new and therefore underutilized, diamond knife sectioning in the physical sciences continues to see both developments of the technique and novel applications.Technique Developments Development of specific orientation/embedding procedures for small pieces of awkward shape is exemplified by the work of Bradley et al on large, rather fragile particles of nuclear waste glass. At the same time, the frequent problem of pullout with large particles can be reduced by roughening of the particle surface, and a proven methodology using a commercial coupling agent developed for glasses has been utilized with good results on large zeolite catalysts. The same principle (using acid etches) should work for ceramic fibres or metal wires which may only partially pull out but result in unacceptably thick sections. Researchers from the life sciences continue to develop aspects of embedding media which may be applicable to certain cases in the physical sciences.

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A crystalline–amorphous Ni–Ni(OH)2 core–shell catalyst for the alkaline hydrogen evolution reaction

Journal of Materials Chemistry A ◽

10.1039/d0ta08735a ◽

2020 ◽

Vol 8 (44) ◽

pp. 23323-23329

Author(s):

Jing Hu ◽

Siwei Li ◽

Yuzhi Li ◽

Jing Wang ◽

Yunchen Du ◽

...

Keyword(s):

Hydrogen Evolution ◽

Hydrogen Evolution Reaction ◽

Electrocatalytic Activity ◽

Core Shell ◽

Alkaline Conditions

Crystalline–amorphous Ni–Ni(OH)2 core–shell assembled nanosheets exhibit outstanding electrocatalytic activity and stability for hydrogen evolution under alkaline conditions.

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