Catalytic decomposition of HCN on copper manganese oxide at low temperatures: Performance and mechanism

Li, Yingjie; Yang, Huai Yu; Zhang, Yuechao; Hu, Jing; Huang, Jianhong; Ning, Ping; Tian, Senlin

doi:10.1016/j.cej.2018.04.055

Cited by 21 publications

(9 citation statements)

References 39 publications

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“…The addition of a small amount of MnO x could enhanced the catalytic activity of CuO/CeO 2 and the results might be attributed to the synergy between copper and manganese oxides, which was in accordance with the study of Li and Njagi et al who studied the catalytic activity of Cu–Mn–O catalysts toward HCN and CO respectively. 25,26 Cu 2+ + Mn 3+ ↔ Cu + + Mn 4+ …”

Section: Resultsmentioning

confidence: 99%

The highly efficient removal of HCN over Cu₈Mn₂/CeO₂ catalytic material

Yi¹,

Sun²,

Li³

et al. 2021

RSC Adv.

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Section: Resultsmentioning

confidence: 99%

The highly efficient removal of HCN over Cu₈Mn₂/CeO₂ catalytic material

Yi¹,

Sun²,

Li³

et al. 2021

RSC Adv.

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“…To our best knowledge, there are main four methods for the removal of HCN, including absorption, combustion, catalytic hydrolysis and catalytic oxidation [7]. Ning et al [8] prepared metal (Cu, Co, Zn) loaded ZSM-5 zeolite materials and investigated its removal ability toward HCN, when loaded with Cu, the HCN breakthrough capacity was enhanced significantly.…”

Section: Introductionmentioning

confidence: 99%

The Effect of CuO/CeO₂ Preparation Methods on the HCN Catalytic Removal Efficiency

Yang¹,

Yi²,

Sun³

et al. 2020

E3S Web Conf.

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In this paper, the porous CeO2 flowerlike spheres support and a series of CuO/CeO2 prepared by different methods were synthesized. The SEM, XRD, BET, H2-TPR and FT-IR characterization were conducted to probe the physicochemical properties of the samples. To evaluate the HCN catalytic removal efficiency over the prepared samples, the breakthrough time of HCN over different samples were investigated. The results implied the CuO/CeO2 prepared by precipitation method (donated as Ce-5) showed highest catalytic activity, the breakthrough time of which was more than 70 min at 30 °C. It was proved the dispersion of CuO phase on the support, the redox properties and the interaction between CuO and CeO2 support over CuO/CeO2 played an important role in the HCN catalytic removal process. FT-IR analysis demonstrated the CuCN was generated due to the chemisorption of CuO and HCN.

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“…16 Ning et al examined the catalytic performance of HCN over Cu−Mn−O catalyst, and HCN removal efficiency was up to 100% at 160 °C. 17 But N 2 O, NH 3 , NO and NO 2 have also been generated in the catalytic degradation of HCN. Although selective catalytic oxidation with high N 2 selectivity seems be effectively used to treat nitrogencontaining waste gas streams, meeting increasingly stringent emissions regulations of both VOCs and NO x (not only VOCs) remains difficult, particularly when treating high concentrations of NVOCs.…”

Section: Introductionmentioning

confidence: 99%

Hydrotalcite-Derived Cu_xMg_3–xAlO Oxides for Catalytic Degradation of n-Butylamine with Low Concentration NO and Pollutant-Destruction Mechanism

Xin

Cheng

et al. 2019

Ind. Eng. Chem. Res.

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The degradation of volatile organic compounds (VOCs) with simultaneous removal of the secondary pollutant NO x is a promising solution for catalytic elimination of nitrogen-containing VOCs (NVOCs). Herein, a series of mixed Cu x Mg3–x AlO oxides were prepared and tested for selective catalytic oxidation of n-butylamine. The Cu content of the catalysts significantly impacted their performance. Cu0.4Mg2.6AlO exhibited the best catalytic activity, with 100% conversion of n-butylamine and 83% N2 selectivity at 350 °C. The catalysts were characterized by NH3-TPD, XPS, EPR, UV–vis, and H2-TPR to reveal the structure–activity relationship. On the basis of DRIFTS results, the reaction mechanism of selective oxidation of n-butylamine was proposed. Additionally, selective catalytic reduction of NO with NH3 was further tested using Cu0.4Mg2.6AlO to remove NO x , which was generated after the selective oxidation process. By coupling selective catalytic oxidation of NVOCs with selective catalytic reduction of NO x , it provides a new effective strategy to synergistically remove NVOCs and NO x .

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Catalytic decomposition of HCN on copper manganese oxide at low temperatures: Performance and mechanism

Cited by 21 publications

References 39 publications

The highly efficient removal of HCN over Cu₈Mn₂/CeO₂ catalytic material

The highly efficient removal of HCN over Cu₈Mn₂/CeO₂ catalytic material

The Effect of CuO/CeO₂ Preparation Methods on the HCN Catalytic Removal Efficiency

Hydrotalcite-Derived Cu_xMg_3–xAlO Oxides for Catalytic Degradation of n-Butylamine with Low Concentration NO and Pollutant-Destruction Mechanism

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Catalytic decomposition of HCN on copper manganese oxide at low temperatures: Performance and mechanism

Cited by 21 publications

References 39 publications

The highly efficient removal of HCN over Cu8Mn2/CeO2 catalytic material

The highly efficient removal of HCN over Cu8Mn2/CeO2 catalytic material

The Effect of CuO/CeO2 Preparation Methods on the HCN Catalytic Removal Efficiency

Hydrotalcite-Derived CuxMg3–xAlO Oxides for Catalytic Degradation of n-Butylamine with Low Concentration NO and Pollutant-Destruction Mechanism

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The highly efficient removal of HCN over Cu₈Mn₂/CeO₂ catalytic material

The highly efficient removal of HCN over Cu₈Mn₂/CeO₂ catalytic material

The Effect of CuO/CeO₂ Preparation Methods on the HCN Catalytic Removal Efficiency

Hydrotalcite-Derived Cu_xMg_3–xAlO Oxides for Catalytic Degradation of n-Butylamine with Low Concentration NO and Pollutant-Destruction Mechanism