2O5-MoO3-Nd2O3/TiO2平板式脫硝催化劑。采用XRD、N2-吸附脫附、XPS、H2-TPR、拉曼光譜和NH3-TPD等表征手段對(duì)催化劑進(jìn)行分析。結(jié)果表明：適量Nd(0.25%、0.5%)的引入,增強(qiáng)了V2O5-MoO3/TiO2催化劑的還原性能,增加了催化劑的Oα/(Oα+Oβ)比率,從而提升了催化劑的脫硝活性。然而,過(guò)量Nd(0.75%、1%)的添加,會(huì)導(dǎo)致催化劑酸性性能的顯著降低,造成催化劑脫硝性能的下降。此外,過(guò)量Nd的添加還會(huì)對(duì)催化劑的耐磨強(qiáng)度有負(fù)面影響。各催化劑中,VMoNd(0.5%)/Ti催化劑顯示了最佳的脫硝活性。"/>

最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級(jí)檢索
釹的添加對(duì)V2O5-MoO3/TiO2平板式脫硝催化劑性能的影響
作者:
作者單位:

1.大唐南京環(huán)?？萍加邢挢?zé)任公司;2.南京理工大學(xué)

作者簡(jiǎn)介:

通訊作者:

中圖分類號(hào):

X511

基金項(xiàng)目:

江蘇省科技成果轉(zhuǎn)化專項(xiàng)資金項(xiàng)目; 江蘇省博士后科研資助計(jì)劃; 中國(guó)博士后科學(xué)基金


Effect of Neodymium Addition on the Plate-type V2O5-MoO3/TiO2 Catalyst for Selective Catalytic Reduction of NO
Author:
Affiliation:

1.Datang Nanjing Environmental Protection Technology Co,Ltd;2.School of Chemical Engineering,Nanjing University of Science and Technology

Fund Project:

The Fund Project for Transformation of Scientific and Technological Achievements of Jiangsu Province of China; China Postdoctoral Science Foundation Grant; Postdoctoral Grant Grog-ram of Jiangsu

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問(wèn)統(tǒng)計(jì)
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評(píng)論
    摘要:

    本文制備了一系列不同Nd含量的V2O5-MoO3-Nd2O3/TiO2平板式脫硝催化劑。采用XRD、N2-吸附脫附、XPS、H2-TPR、拉曼光譜和NH3-TPD等表征手段對(duì)催化劑進(jìn)行分析。結(jié)果表明：適量Nd(0.25%、0.5%)的引入,增強(qiáng)了V2O5-MoO3/TiO2催化劑的還原性能,增加了催化劑的Oα/(Oα+Oβ)比率,從而提升了催化劑的脫硝活性。然而,過(guò)量Nd(0.75%、1%)的添加,會(huì)導(dǎo)致催化劑酸性性能的顯著降低,造成催化劑脫硝性能的下降。此外,過(guò)量Nd的添加還會(huì)對(duì)催化劑的耐磨強(qiáng)度有負(fù)面影響。各催化劑中,VMoNd(0.5%)/Ti催化劑顯示了最佳的脫硝活性。

    Abstract:

    A series of plate-type V2O5-MoO3-Nd2O3/TiO2 catalysts with different amounts of neodymium were prepared to investigate the impact of neodymium addition on selective catalytic reduction (SCR) of NO with NH3. XRD, N2-adsorption, XPS, H2-TPR, Raman and NH3-TPD were carried out to characterize the catalysts. It was found that with the suitable addition of Nd (0.25% and 0.5%) to V2O5-MoO3/TiO2 catalyst not only brought to the improvement of the reduction property, but also increased the Oα/(Oα+Oβ) ratio of the catalyst, which leaded to the enhanced catalytic efficiency. However, when the content of Nd was excessive (0.75% and 1%), the acid sites of the catalysts decreased evidently. Accordingly, the catalytic performance of these catalysts was relatively low. What is more, the mechanical property of the catalyst declined when the content of Nd was excessive. Among the catalysts investigated, VMoNd(0.5%)/Ti catalyst had the best catalytic performance.

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

黃力,縱宇浩,王虎,常崢?lè)?張舒樂(lè),鐘秦.釹的添加對(duì)V2O5-MoO3/TiO2平板式脫硝催化劑性能的影響[J].稀有金屬材料與工程,2021,50(2):475~482.[Huang Li, Zong Yuhao, Wang Hu, Chang Zhengfeng, Zhang Shule, Zhong Qin. Effect of Neodymium Addition on the Plate-type V2O5-MoO3/TiO2 Catalyst for Selective Catalytic Reduction of NO[J]. Rare Metal Materials and Engineering,2021,50(2):475~482.]
DOI：10.12442/j. issn.1002-185X.20200057

復(fù)制
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2020-01-26
  • 最后修改日期:2020-04-20
  • 錄用日期:2020-04-26
  • 在線發(fā)布日期: 2021-03-09
  • 出版日期: