Catalytic ammonia decomposition over industrial-waste-supported Ru catalysts.
Industrial solid wastes (fly ash and red mud) have been employed as supports for preparation of Ru-based catalysts. Physical and chemical treatments on red mud were conducted and these modified supports were also used for preparation of Ru-based catalysts. Those Ru catalysts were characterized by various techniques such as N2 adsorption, H2 adsorption, XRD, XPS, and temperature-programmed reduction (TPR), and were then tested for catalytic ammonia decomposition to hydrogen. It was found that red-mud-supported Ru catalyst exhibits higher ammonia conversion and hydrogen production than fly-ash-supported catalyst. Heat and chemical treatments of the red mud greatly improve the catalytic activity. Moreover, a combination of acid and heat treatments produces the highest catalytic conversion of ammonia.
Ng
Pei Fang
PF
ARC Functional Nanomaterials, The University of Queensland, St. Lucia, Queensland 4072, Australia.
Li
Li
L
Wang
Shaobin
S
Zhu
Zhonghua
Z
Lu
Gaoqing
G
Yan
Zifeng
Z
D000641:Ammonia / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry; D002384:Catalysis; D060729:Coal Ash; D007220:Industrial Waste; D052638:Particulate Matter / Q000737:chemistry; D012428:Ruthenium / Q000737:chemistry*; D012987:Soil; D014961:X-Ray Diffraction
D060729:Coal Ash; D007220:Industrial Waste; D052638:Particulate Matter; D012987:Soil; D002244:Carbon; D000641:Ammonia; D012428:Ruthenium