Anisotropic nanoporous morphology of ZnO-supported Co that enhances catalytic activity

Nanoscale ◽  
2021 ◽  
Author(s):  
Christopher M. Coaty ◽  
Adam A. Corrao ◽  
Victoria Petrova ◽  
Taewoo Kim ◽  
David P. Fenning ◽  
...  

Conversion reaction synthesis methods yield a nanoporous ZnO-supported Co catalyst with an anisotropic crystal structure and an anisotropic, hierarchical, columnar wall morphology that is highly efficient for steam reforming of ethanol to produce H2.

2019 ◽  
Vol 43 (8) ◽  
pp. 3823-3836 ◽  
Author(s):  
Xiang Luo ◽  
Yu Hong ◽  
Honglei Zhang ◽  
Kaiqi Shi ◽  
Gang Yang ◽  
...  

2014 ◽  
Vol 147 ◽  
pp. 813-826 ◽  
Author(s):  
Gabriella Garbarino ◽  
Elisabetta Finocchio ◽  
Alberto Lagazzo ◽  
Ioannis Valsamakis ◽  
Paola Riani ◽  
...  

2015 ◽  
Vol 495 ◽  
pp. 30-38 ◽  
Author(s):  
Shuhei Ogo ◽  
Takuya Shimizu ◽  
Yusaku Nakazawa ◽  
Kei Mukawa ◽  
Daiki Mukai ◽  
...  

Quimica Hoy ◽  
2011 ◽  
Vol 2 (1) ◽  
pp. 3
Author(s):  
Paz Hernández ◽  
Arturo Fernández ◽  
Sarah Messina

Ni-W catalysts supported on CeO2,Al2O3 and hydrotalcite (HT) were studied in the steam reforming of ethanol at 500-650ºC. The CeO2 and HT were synthesized by impregnation and direct coprecipitation methods, respectively. Commercial Al2O3 was used. Nickel content was varied from 10, 15 and 30% with 1% W. The catalyst that presented the highest catalytic activity and selectivity to hydrogen was 10% Ni-W/HT. Conversion to ethanol was 100% and selectivities to H2, CH4, CO2 and CO were 75, 5.78, 0.37 and 18.85%, respectively, at a temperature of 500 ºC. Moreover, these catalysts showed good stability with respect to carbon deposition and low selectivity towards C2H4 production. These are desirable features for catalysts to be used in hydrogen production for fuel cell applications.


2010 ◽  
Vol 9 (2) ◽  
pp. 195-200
Author(s):  
Wega Trisunaryanti ◽  
Handirofa Handirofa ◽  
Triyono Triyono ◽  
Suryo Purwono

Preparation, characterization and catalytic activity test of CoMo/ZnO catalyst for steam reforming of ethanol have been investigated. The catalysts preparation was carried out by impregnation of Co and/or Mo onto ZnO sample. Water excess was used in ethanol feed for steam reforming process under mol ratio of ethanol:water (1:10). Characterizations of catalysts were conducted by analysis of metal content using Atomic Absorption Spectroscopy (AAS). Determination of catalysts acidity was conducted by gravimetric method of adsorption of pyridine base. Catalytic activity test on ethanol conversion using steam reforming method was conducted in a semi-flow reactor system, at a temperature of 400 oC, for 1.5 h under N2 flow rate of 10 mL/min. Gas product was analyzed by gas chromatograph with TCD system. The results of catalysts characterizations showed that the impregnation of Co and/or Mo metals on ZnO sample increased its acidity and specific surface area. The content of Co in Co/ZnO and CoMo/ZnO catalysts was 1.14 and 0.49 wt%. The Mo content in CoMo/ZnO catalyst was 0.36 wt%. The catalytic activity test result on ethanol conversion showed that the ZnO, Co/ZnO, and CoMo/ZnO catalysts produced gas fraction of 16.73, 28.53, and 35.53 wt%, respectively. The coke production of ZnO, Co/ZnO, and CoMo/ZnO catalysts was 0.86, 0.24, and 0.08 wt%, respectively. The gas products consisted mainly of hydrogen.   Keywords: CoMo/ZnO catalyst, steam reforming, ethanol


2018 ◽  
Vol 24 (35) ◽  
pp. 8742-8746 ◽  
Author(s):  
Lin Yu ◽  
Katsutoshi Sato ◽  
Takaaki Toriyama ◽  
Tomokazu Yamamoto ◽  
Syo Matsumura ◽  
...  

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