qiong, su ren, fang mengmeng, lu zhao, jinqin zhu, xingchen shen, tao shen, yan wang, yanbin liang, junxi
Theoretical and experimental investigations have shown that biochar, following KOH activation, enhances the efficiency of NO removal. Similarly, NaOH activation also improves NO removal efficiency, although the underlying mechanism remains unclear. In this study, zigzag configurations were employed as biochar models. Density functional theory (DFT)...
jingkuan, li wang, yanlin xinhua, hu
Systematic studies on the mechanism underlying Fe2O3-catalyzed NO reduction in a reducing atmosphere during sludge combustion remain limited. In this study, density functional theory was employed to investigate the adsorption properties of NH3, CO, and NO on the α-Fe2O3(001) surface, and the mechanisms underlying the NH3 and CO reduction of NO duri...
moura de melo, luciana fentanes barbosa, jefferson da silva da silva cordeiro, maria lúcia de queiroz aquino-martins, verônica giul... da silva, ariana pereira paiva, weslley de souza silveira, elielson rodrigo yara, déborah oliveira rocha, hugo alexandre scortecci, kátia castanho
...
Oxidative stress has been associated with different diseases, and different medicinal plants have been used to treat or prevent this condition. The leaf ethanolic extract (EE) and aqueous extract (AE) from Coccoloba alnifolia have previously been characterized to have antioxidant potential in vitro and in vivo. In this study, we worked with EE and ...
Fu, Hui Zhang, Junfeng Zhao, Lingkui Huang, Yan Chen, Biao
Published in
Chemosphere
Selective catalytic reduction of ammonia is the most widely used technology for NOx removal, but there have been serious ammonia leaks and a narrow reaction temperature window. To overcome these limitations, a coal-based activated carbon (CAC) approach using KOH activation for the ammonia-free reduction of NO was investigated in this work. A prepar...
lin, ju tang, xiao zhang, yixin xiaoxi, li cui, xiangzhen yang, gui
The NO reduction reaction (NORR) toward NH3 is simultaneously emerging for both detrimental NO elimination and valuable NH3 synthesis. An efficient NORR generally requires a high degree of activation of the NO gas molecule from the catalyst, which calls for a powerful chemisorption. In this work, by means of first-principles calculations, we discov...
Xu, Zhicheng Li, Yuran Lin, Yuting Wang, Bin Wang, Qiang Zhu, Tingyu
For industrial flue gas, the synergistic removal of NOx and CO pollutants is in high demand but still has not been realized due to the presence of O-2. We propose firstly that activated carbon regeneration gas provides suitable O-2-free conditions for NO reduction by CO, but high contents of 5% SO2 and 5% H2O affect the catalyst activity. Here, we ...
Xu, Zhicheng Li, Yuran Lin, Yuting Wang, Bin Wang, Qiang Zhu, Tingyu
For industrial flue gas, the synergistic removal of NOx and CO pollutants is in high demand but still has not been realized due to the presence of O-2. We propose firstly that activated carbon regeneration gas provides suitable O-2-free conditions for NO reduction by CO, but high contents of 5% SO2 and 5% H2O affect the catalyst activity. Here, we ...
Bunea, S. (author) Coppens, Manoj (author) Urakawa, A. (author)
The continuous electrochemical NO reduction to ammonia in a PEM cell was investigated in this work. We used a ruthenium-based catalyst at the cathode and an iridium oxide catalyst at the anode. The highest ammonia faradaic efficiency was observed at 1.9 V cell voltage. Adjusting the NO flow allowed to achieve 97% NO conversion and 93% ammonia farad...
Li, Shuhao Chen, Xiaogen Wang, Feng Xie, Zongli Hao, Zerong Liu, Lijun Shen, Boxiong
Published in
Journal of hazardous materials
Catalytic reduction of NO using CO, which is usually present in the flue gas of the iron and steel industry, is considered as an economical and eco-friendly de-NOx method (CO-SCR). However, the oxygen present in the flue gas will significantly inhibit the CO-SCR activity of the catalyst, thereby limiting its industrial application. Herein, catalyst...
Ren, Yuehong Han, Qingzhen Yang, Jie Zhao, Yuehong Xie, Yongbing Wen, Hao Jiang, Zhaotan
The direct catalytic reduction of nitric oxide (NO) by carbon monoxide (CO) to form harmless N-2 and CO2 is an ideal strategy to simultaneously remove both these hazardous gases. To investigate the feasibility of using graphitic carbon nitride/titanium dioxide (g-C3N4/TiO2) to catalyze the NO reduction by CO, we systematically explore the effect of...
