Catalytic decomposition of ammonia to COx-free hydrogen over Ni/ZSM-5 catalysts: A comparative study of the preparation methods

2018 ◽  
Vol 562 ◽  
pp. 49-57 ◽  
Author(s):  
Zhong-Pan Hu ◽  
Chen-Chen Weng ◽  
Chong Chen ◽  
Zhong-Yong Yuan
Keyword(s):  
Comparative Study ◽  
Catalytic Decomposition ◽  
Preparation Methods ◽  
Free Hydrogen

scholarly journals Production of COx-Free Hydrogen and Few-Layer Graphene Nanoplatelets by Catalytic Decomposition of Methane over Ni-Lignin-Derived Nanoparticles

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 503
Author(s):  
Qiangu Yan ◽  
Timothy Ketelboeter ◽  
Zhiyong Cai
Keyword(s):  
Active Sites ◽  
Nickel Nanoparticles ◽  
Catalytic Decomposition ◽  
Graphene Nanoplatelets ◽  
Methane Decomposition ◽  
High Catalytic Activity ◽  
Layer Graphene ◽  
Free Hydrogen ◽  
Decomposition Of Methane ◽  
Few Layer Graphene

Nickel (Ni)-lignin nanocomposites were synthesized from nickel nitrate and kraft lignin then catalytically graphitized to few-layer graphene-encapsulated nickel nanoparticles (Ni@G). Ni@G nanoparticles were used for catalytic decomposition of methane (CDM) to produce COx-free hydrogen and graphene nanoplatelets. Ni@G showed high catalytic activity for methane decomposition at temperatures of 800 to 900 °C and exhibited long-term stability of 600 min time-on-stream (TOS) without apparent deactivation. The catalytic stability may be attributed to the nickel dispersion in the Ni@G sample. During the CDM reaction process, graphene shells over Ni@G nanoparticles were cracked and peeled off the nickel cores at high temperature. Both the exposed nickel nanoparticles and the cracked graphene shells may participate the CDM reaction, making Ni@G samples highly active for CDM reaction. The vacancy defects and edges in the cracked graphene shells serve as the active sites for methane decomposition. The edges are continuously regenerated by methane molecules through CDM reaction.

Su1554 A Comparative Study of Low-Volume Bowel Preparation Methods for Colonoscopy; Sodium Picosulfate Versus PEG-ASC

2014 ◽  
Vol 79 (5) ◽  
pp. AB319
Author(s):  
Jong Soo Lee ◽  
Yoon Tae Jeen ◽  
Seung Han Kim ◽  
Jae MIN Lee ◽  
Hyuk Soon Choi ◽  
...  
Keyword(s):  
Comparative Study ◽  
Bowel Preparation ◽  
Preparation Methods ◽  
Sodium Picosulfate ◽  
Low Volume

Catalytic furfural hydrogenation to furfuryl alcohol over Cu/SiO2 catalysts: A comparative study of the preparation methods

2019 ◽  
Vol 193 ◽  
pp. 221-231 ◽  
Author(s):  
Hong Du ◽  
Xiuyun Ma ◽  
Peifang Yan ◽  
Miao Jiang ◽  
Ziang Zhao ◽  
...  
Keyword(s):  
Comparative Study ◽  
Furfuryl Alcohol ◽  
Preparation Methods ◽  
Furfural Hydrogenation

Catalytic decomposition of methane for the simultaneous co-production of CO2-free hydrogen and carbon nanofibre based polymers

Fuel ◽  
2011 ◽  
Vol 90 (1) ◽  
pp. 430-432 ◽  
Author(s):  
R. Utrilla ◽  
J.L. Pinilla ◽  
I. Suelves ◽  
M.J. Lázaro ◽  
R. Moliner
Keyword(s):  
Catalytic Decomposition ◽  
Free Hydrogen ◽  
Carbon Nanofibre ◽  
Decomposition Of Methane

A comparative study of the catalytic decomposition of methanol on rhodium and nickel

1988 ◽  
Vol 1 (11) ◽  
pp. 361-369 ◽  
Author(s):  
J. J. Weimer ◽  
G. K. Chuah ◽  
G. Abend ◽  
N. Kruse ◽  
J. H. Block
Keyword(s):  
Comparative Study ◽  
Catalytic Decomposition

Effect of preparation methods on the catalyst performance of Co/Mg La mixed oxide catalyst for COx-free hydrogen production by ammonia decomposition

2017 ◽  
Vol 42 (38) ◽  
pp. 24213-24221 ◽  
Author(s):  
Seetharamulu Podila ◽  
Hafedh Driss ◽  
Sharif F. Zaman ◽  
Arshid M. Ali ◽  
Abdulrahim A. Al-Zahrani ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Mixed Oxide ◽  
Oxide Catalyst ◽  
Ammonia Decomposition ◽  
Preparation Methods ◽  
Mixed Oxide Catalyst ◽  
Free Hydrogen
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