scholarly journals Initial adsorption of Co on Cu(001):  A first-principles investigation

2002 ◽  
Vol 65 (15) ◽  
Author(s):  
Rossitza Pentcheva ◽  
Matthias Scheffler
Author(s):  
M. R. Al Fauzan ◽  
W. D. Astuti ◽  
G. Al Fauzan ◽  
Sholihun

AIP Advances ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 025317 ◽  
Author(s):  
Weidong Wang ◽  
Yuxiang Zhang ◽  
Cuili Shen ◽  
Yang Chai

2021 ◽  
Author(s):  
Somayeh Tohidi ◽  
Tavakkol Tohidi ◽  
Parvin Hamdi Mohammadabad

Abstract Understanding the effect of decorating of copper oxide (CuO) on Carbon monoxide (CO) adsorption at zinc oxide nanotube is crucial for designing a high performance CO gas sensor. In this work, CO sensing properties of copper oxide-decorated zinc oxide (CuO-ZnO) nanotube is studied theoretically by employing first-principles density functional theory for the first time. The stability, adsorption mechanism, density of states, and change in electrical conductivity are studied. The results of calculating the adsorption energy show strong chemical adsorption of CO on CuO-ZnO nanotubes. The adsorption energy of CO on CuO-ZnO nanotube is calculated as 7.5 times higher than that on ZnO nanotube. The results of the Mulliken charge analysis reveal that electron transfer occurs from CO molecules to CuO-ZnO nanotubes. Additionally, the electrical conductivity of CuO-ZnO nanotubes significantly changes after adsorption of CO at room temperature. According to these studies, CuO-ZnO nanotube sensors can be used for the detection of CO gas. The results are in excellent agreement with the reported experimental results.


2021 ◽  
Vol 47 ◽  
pp. 6413-6417
Author(s):  
Archana Sharma ◽  
Mushahid Husain ◽  
Mohd. Shahid Khan

2000 ◽  
Vol 453 (1-3) ◽  
pp. 130-136 ◽  
Author(s):  
Dominic R. Alfonso ◽  
James A. Snyder ◽  
John E. Jaffe ◽  
Anthony C. Hess ◽  
Maciej Gutowski

2011 ◽  
Vol 115 (13) ◽  
pp. 5593-5598 ◽  
Author(s):  
Lihui Sun ◽  
Jifan Hu ◽  
Hongwei Qin ◽  
Ming Zhao ◽  
Kai Fan

2002 ◽  
Vol 66 (15) ◽  
Author(s):  
Robin Hirschl ◽  
Françoise Delbecq ◽  
Philippe Sautet ◽  
Jürgen Hafner

2020 ◽  
pp. e1856429
Author(s):  
Long Lin ◽  
Ruixin Chen ◽  
Jingtao Huang ◽  
Pengtao Wang ◽  
Linghao Zhu ◽  
...  

2021 ◽  
Vol 287 ◽  
pp. 02011
Author(s):  
N E Fatriyah Kari ◽  
M Azmi Bustam ◽  
Marhaina Ismail

The release of carbon dioxide in the environment is increasing yearly due to human activities and it will affect greenhouse gas. To overcome this issue, adsorption technology found to be the best candidate due to its performance to capture high CO2 with lower capital cost. Much attention has focused on metal-organic framework (MOF) due to high potential of CO2 capture compared with conventional adsorbents. More research has been done on MOF-74 due to presence of the open-metal site that favors CO2 binding. The presence of metal in MOF-74 able to give higher surface area and porosity of the molecules thus result in higher adsorption of CO2. However, there is limited research related to metal in MOF-74 where most focused on the Mg-MOF-74 due to its ability to adsorb twice of CO2 compared with zeolites. Yet, Mg-MOF-74 found to lose stability in presence of water where it's only able to recover 15% from initial adsorption. Synthesizing MOF-74 requires high cost and providing not a promising result for each synthesizes. Thus, this paper introduces to screen MOF-74 for different metal centers using modeling approach by Material Studio. As result, Ni-MOF-74 shows the highest adsorption of CO2 with 12.35mmol/g compared to other metals.


Sign in / Sign up

Export Citation Format

Share Document