水滑石衍生CuMgFe-LDO催化剂协同净化氮氧化物和甲醇

doi:10.11949/0438-1157.20240155

摘要/Abstract

摘要：

NH₃-SCR催化剂同时去除NO _x 和挥发性有机物（VOCs）引起了人们的广泛关注，然而，VOCs的存在会对脱硝反应产生负面影响，尤其在低温条件下。本研究选定水滑石衍生复合氧化物（Cu）MgFe-LDO催化剂探索协同脱除NO _x 和甲醇性能，着重考察Cu的引入以及CuO _x 和FeO _x 相互作用对协同反应的影响，并对所制备的催化剂进行表征测试。结果表明，含Cu催化剂的脱硝活性均高于MgFe-LDO催化剂，最佳催化剂Cu_0.5MgFe-LDO在230~300℃温窗内具有较好的脱硝活性和甲醇氧化性能。适量引入Cu加强了Cu、Fe物种间的相互作用，有利于氧化还原循环，从而产生更多的氧缺陷及活性氧，过量Cu掺杂会破坏催化剂结构，降低表面酸性，引入Cu可以减缓甲醇对SCR反应的抑制作用。这些结果可为实际应用SCR催化剂协同去除VOCs提供指导。

关键词: 类水滑石, CuMgFe-LDO, 甲醇氧化, NH₃-SCR, 协同脱除

Abstract:

The simultaneous abatement of NO _x and volatile organic compounds (VOCs) by NH₃-SCR catalysts has attracted lots of attention. However, the presence of VOCs can have negative impact on deNO _x efficiency especially at low temperatures. In this study, hydrotalcite-derived composite oxide (Cu) MgFe-LDO catalysts were selected to explore the simultaneous removal of NO _x and methanol, focusing on the introduction of Cu and the influence of CuO _x and FeO _x interaction on the synergistic reaction, and the prepared catalysts were characterized and tested. The results showed that the deNO _x activity of Cu-containing catalysts was higher than that of MgFe-LDO catalysts, and the optimal catalyst Cu_0.5MgFe-LDO exhibits the best catalytic activity for both NH₃-SCR and methanol oxidation in the temperature window of 230—300℃.The appropriate introduction of Cu strengthens the interaction between Cu and Fe species, which is conducive to the redox cycle, resulting in more oxygen defects and reactive oxygen species. Excessive Cu doping will destroy the catalyst structure and reduce the surface acidity. The introduction of Cu can slow down the inhibitory effect of methanol on the SCR reaction. These results can provide useful guidance for the practical application of SCR catalysts for synergistic removal of VOCs.

Key words: LDHs, CuMgFe-LDO, methanol oxidation, NH₃-SCR, simultaneous removal

中图分类号:

TQ 032.4

徐欣欣, 冀芸丽, 武鲜凤, 安霞, 吴旭. 水滑石衍生CuMgFe-LDO催化剂协同净化氮氧化物和甲醇[J]. 化工学报, 2024, 75(5): 1890-1902.

Xinxin XU, Yunli JI, Xianfeng WU, Xia AN, Xu WU. Hydrotalcite-derived CuMgFe-LDO catalyst for simultaneous abatement of nitrogen oxides and methanol[J]. CIESC Journal, 2024, 75(5): 1890-1902.

图/表 15

图1 催化剂前体的XRD谱图、FT-IR光谱以及MgFe-LDH、Cu0.5MgFe-LDH、Cu1MgFe-LDH、Cu2.5MgFe-LDH的扫描电镜图

Fig.1 XRD patterns and FT-IR spectra of series precursors， and SEM images of MgFe-LDH, Cu0.5MgFe-LDH, Cu1MgFe-LDH, Cu2.5MgFe-LDH

图2 不同催化剂的NO x 转化率、甲醇转化率、N2选择性、CO2选择性[反应条件:500 mg/L NO x,500 mg/L NH3,750 mg/L甲醇,5% O2和N2为平衡气,GHSV=30000 ml/(g·h)]

Fig.2 NO x conversion, methanol conversion,N2 selectivity,CO2 selectivity over different catalysts [reaction conditions: 500 mg/L NO x, 500 mg/L NH3, 750 mg/L methanol, 5% O2 and N2 as balance, GHSV=30000 ml/(g·h)]

图3 MgFe-LDO,Cu1MgFe-LDO,Cu0.5MgFe-LDO,Cu2.5MgFe-LDO的XRD谱图

Fig.3 XRD patterns of MgFe-LDO,Cu1MgFe-LDO,Cu0.5MgFe-LDO,Cu2.5MgFe-LDO

图4 催化剂的N2吸附-脱附等温线及孔径分布

Fig.4 N2 adsorption-desorption isotherms and pore size distribution of catalysts

表1 催化剂的比表面积、孔径和孔体积

Table 1 The specific surface area， pore diameter and pore volume of catalysts

催化剂	比表面积/ (m²/g)	孔径/nm	孔容/(cm³/g)
MgFe-LDO	62.6	8.8	0.2
Cu_0.5MgFe-LDO	38.1	16.4	0.2
Cu₁MgFe-LDO	31.8	11.8	0.1
Cu_2.5MgFe-LDO	19.7	22.6	0.1

图5 催化剂的NH3-TPD结果

Fig.5 NH3-TPD profiles of catalysts

表2 催化剂的氨脱附结果

Table 2 NH3 desorption results of catalysts

催化剂	NH₃相对吸附量	NH₃脱附比例/%
催化剂	NH₃相对吸附量	弱酸	强酸
MgFe-LDO	1.0	100	－
Cu_0.5MgFe-LDO	0.7	30	70
Cu₁MgFe-LDO	0.6	34	66
Cu_2.5MgFe-LDO	0.2	96	4

图6 催化剂的H2-TPR结果

Fig.6 H2-TPR profiles of catalysts

图7 催化剂的O2-TPD结果

Fig.7 O2-TPD profiles of catalysts

表3 各催化剂的O2-TPD数据分析

Table 3 Analysis of O2-TPD data for various catalysts

催化剂	表面元素物种/%			总氧物种脱附量
催化剂	O_ɑ	O_β	O_γ	总氧物种脱附量
Mg₃Fe₁-LDO	28.8	1.8	69.4	1
Cu_0.5MgFe-LDO	37.7	60.5	1.8	0.8
Cu₁Mg₂Fe₁-LDO	43.1	49.5	7.4	0.6
Cu_2.5Mg_0.5Fe₁-LDO	32.7	67.3	—	0.5

图8 催化剂的XPS谱图

Fig.8 XPS spectra of catalysts

表4 各催化剂的XPS分析

Table 4 XPS analysis of different catalysts

催化剂	相对浓度比/%
催化剂	Cu⁺/(Cu⁺+Cu²⁺)	Fe³⁺/(Fe³⁺+Fe²⁺)	O_β/(O_α+O_β)
MgFe-LDO	—	40	58
Cu_0.5MgFe-LDO	51	61	71
Cu₁MgFe-LDO	56	59	51
Cu_2.5MgFe-LDO	65	58	50

图9 甲醇对NO x 转化率和N2选择性的影响[反应条件：500 mg/L NO x， 500 mg/L NH3， 750 mg/L甲醇，5% O2和N2为平衡气，GHSV=30000ml/(g·h)]

Fig.9 Effects of methanol on NO x conversion and N2 selectivity [reaction condition: 500 mg/L NO, 500 mg/L NH3, 750 mg/L methanol, 5% O2 and N2 as balance, GHSV=30000 ml/(g·h)]

图10 SCR气氛对甲醇转化率、CO2选择性的影响[反应条件：500 mg/L NO x，500 mg/L NH3，750 mg/L甲醇，5% O2和N2为平衡气，GHSV=30000 ml/(g·h)]

Fig.10 Effects of SCR gas components on methanol conversion and CO2 selectivity [reaction condition: 500 mg/L NO, 500 mg/L NH3,750 mg/L methanol, 5% O2 and N2 as balance, GHSV = 30000 ml/(g·h)]

图11 协同反应过程的原位DRIFTs光谱(反应条件: 500 mg/L NO x, 500 mg/L NH3, 750 mg/L甲醇, 5% O2和N2)

Fig.11 In situ DRIFTs spectra of synergistic reaction process (reaction condition: 500 mg/L NO x, 500 mg/L NH3, 750 mg/L methanol, 5% O2 and N2)

参考文献 62

1	Ou J M, Yuan Z B, Zheng J Y, et al. Ambient ozone control in a photochemically active region: short-term despiking or long-term attainment?[J]. Environmental Science & Technology, 2016, 50(11): 5720-5728.
2	Lu C Y, Wey M Y. Simultaneous removal of VOC and NO by activated carbon impregnated with transition metal catalysts in combustion flue gas[J]. Fuel Processing Technology, 2007, 88(6): 557-567.
3	Zheng F, Liu C J, Ma X J, et al. Review on NH₃-SCR for simultaneous abating NO _x and VOCs in industrial furnaces: catalysts’ composition, mechanism, deactivation and regeneration[J]. Fuel Processing Technology, 2023, 247: 107773.
4	Kouraichi R, Delgado J J, López-Castro J D, et al. Deactivation of Pt/MnO _x -CeO₂ catalysts for the catalytic wet oxidation of phenol: formation of carbonaceous deposits and leaching of manganese[J]. Catalysis Today, 2010, 154(3/4): 195-201.
5	Long Y P, Su Y T, Xue Y H, et al. V₂O₅-WO₃/TiO₂ catalyst for efficient synergistic control of NO _x and chlorinated organics: insights into the arsenic effect[J]. Environmental Science & Technology, 2021, 55(13): 9317-9325.
6	Pan H, Chen Z H, Ma M D, et al. Mutual inhibition mechanism of simultaneous catalytic removal of NO _x and toluene on Mn-based catalysts[J]. Journal of Colloid and Interface Science, 2022, 607(Pt 2): 1189-1200.
7	Jiang W Y, Yu Y L, Bi F, et al. Synergistic elimination of NO _x and chloroaromatics on a commercial V₂O₅-WO₃/TiO₂ catalyst: byproduct analyses and the SO₂ effect[J]. Environmental Science & Technology, 2019, 53(21): 12657-12667.
8	Wang D, Chen Q Z, Zhang X, et al. Multipollutant control (MPC) of flue gas from stationary sources using SCR technology: a critical review[J]. Environmental Science & Technology, 2021, 55(5): 2743-2766.
9	Liang Q M, Li J, He H, et al. Effects of SO₂ on the low temperature selective catalytic reduction of NO by NH₃ over CeO₂-V₂O₅-WO₃/TiO₂ catalysts[J]. Frontiers of Environmental Science & Engineering, 2017, 11(4): 4.
10	高凤雨, 刘恒恒, 姚小龙, 等. 球形表面富锰Mn _x Co_3- _x O_4- _η 尖晶石型催化剂选择性催化还原NO _x 研究[J]. 物理化学学报, 2023, 39(9): 136-148.
	Gao F Y, Liu H H, Yao X L, et al. Spherical Mn _x Co_3- _x O_4- _η spinel with Mn-enriched surface as high-efficiency catalysts for low-temperature selective catalytic reduction of NO _x by NH₃ [J]. Acta Physico-Chimica Sinica, 2023, 39(9): 136-148.
11	Li Y B, Han S H, Zhang L P, et al. Manganese-based catalysts for indoor volatile organic compounds degradation with low energy consumption and high efficiency[J]. Transactions of Tianjin University, 2022, 28(1): 53-66.
12	Shi Y J, Guo X L, Wang Y Y, et al. New insight into the design of highly dispersed Pt supported CeO₂-TiO₂ catalysts with superior activity for VOCs low-temperature removal[J]. Green Energy & Environment, 2023, 8(6): 1654-1663.
13	Gallastegi-Villa M, Aranzabal A, Boukha Z, et al. Role of surface vanadium oxide coverage support on titania for the simultaneous removal of o-dichlorobenzene and NO _x from waste incinerator flue gas[J]. Catalysis Today, 2015, 254: 2-11.
14	Wu X, Meng H, Du Y L, et al. Insight into Cu₂O/CuO collaboration in the selective catalytic reduction of NO with NH₃: enhanced activity and synergistic mechanism[J]. Journal of Catalysis, 2020, 384: 72-87.
15	于艳科, 耿梦荞, 魏德胜, 等. 钾对CuSO₄/TiO₂脱硝催化剂的失活效应[J]. 物理化学学报, 2023, 39(4): 76-84.
	Yu Y K, Geng M Q, Wei D S, et al. Effect of potassium on the performance of a CuSO₄/TiO₂ catalyst used in the selective catalytic reduction of NO _x by NH₃ [J]. Acta Physico-Chimica Sinica, 2023, 39(4): 76-84.
16	Ghodselahi T, Vesaghi M A, Shafiekhani A, et al. XPS study of the Cu@Cu₂O core-shell nanoparticles[J]. Applied Surface Science, 2008, 255(5): 2730-2734.
17	Fang D, Qi K, Li F X, et al. Excellent sulfur tolerance performance over Fe-SO₄/TiO₂ catalysts for NH₃-SCR: influence of sulfation and Fe-based sulfates[J]. Journal of Environmental Chemical Engineering, 2022, 10(1): 107038.
18	Han L P, Gao M, Feng C, et al. Fe₂O₃-CeO₂@Al₂O₃ nanoarrays on Al-mesh as SO₂-tolerant monolith catalysts for NO _x reduction by NH₃ [J]. Environmental Science & Technology, 2019, 53(10): 5946-5956.
19	Delimaris D, Ioannides T. VOC oxidation over CuO-CeO₂ catalysts prepared by a combustion method[J]. Applied Catalysis B: Environmental, 2009, 89(1/2): 295-302.
20	Cocuzza C, Sartoretti E, Novara C, et al. Copper-manganese oxide catalysts prepared by solution combustion synthesis for total oxidation of VOCs[J]. Catalysis Today, 2023, 423: 114292.
21	Zhang J, Qu H X. Low-temperature selective catalytic reduction of NO _x with NH₃ over Fe-Cu mixed oxide/ZSM-5 catalysts containing Fe₂CuO₄ phase[J]. Research on Chemical Intermediates, 2015, 41(7): 4961-4975.
22	Pan D, Ge S S, Tian J Y, et al. Research progress in the field of adsorption and catalytic degradation of sewage by hydrotalcite-derived materials[J]. Chemical Record, 2020, 20(4): 355-369.
23	Palomares A. Using the “memory effect” of hydrotalcites for improving the catalytic reduction of nitrates in water[J]. Journal of Catalysis, 2004, 221(1): 62-66.
24	He L M, Cheng H Y, Liang G F, et al. Effect of structure of CuO/ZnO/Al₂O₃ composites on catalytic performance for hydrogenation of fatty acid ester[J]. Applied Catalysis A: General, 2013, 452: 88-93.
25	Wu X F, Liu J N, Liu L L, et al. Superior CuMgFe mixed oxide catalysts engineered by tuning the redox cycle for enhancing NO _x removal performance[J]. Journal of Environmental Chemical Engineering, 2022, 10(6): 108824.
26	Wu X F, Liu J N, Liu X Z, et al. Fabrication of carbon doped Cu-based oxides as superior NH₃-SCR catalysts via employing sodium dodecyl sulfonate intercalating CuMgAl-LDH[J]. Journal of Catalysis, 2022, 407(1): 265-280.
27	杜冬冬, 刘欢, 马若愚, 等. 基于分子间作用力组装的镁铝水滑石光稳定剂及其性能研究[J]. 化工学报, 2021, 72(6): 3095-3104.
	Du D D, Liu H, Ma R Y, et al. Performance of MgAl layered double hydroxides light stabilizer assembled via intermolecular forces[J]. CIESC Journal, 2021, 72(6): 3095-3104.
28	张因, 郭健健, 任欢杰, 等. 插层阴离子对以类水滑石为前体Ni-Al₂O₃催化剂催化乙酰丙酸加氢性能的影响[J]. 化工学报, 2020, 71(8): 3614-3624.
	Zhang Y, Guo J J, Ren H J, et al. Effect of intercalation anions on catalytic performance of hydrotalcite-like precursor Ni-Al₂O₃ catalyst for levulinic acid hydrogenation[J]. CIESC Journal, 2020, 71(8): 3614-3624.
29	Wu X, Feng Y L, Du Y L, et al. Enhancing DeNO _x performance of CoMnAl mixed metal oxides in low-temperature NH₃-SCR by optimizing layered double hydroxides (LDHs) precursor template[J]. Applied Surface Science, 2019, 467/468: 802-810.
30	Wu M, Wang X Y, Dai Q G, et al. Low temperature catalytic combustion of chlorobenzene over Mn-Ce-O/γ-Al₂O₃ mixed oxides catalyst[J]. Catalysis Today, 2010, 158(3/4): 336-342.
31	Li J L, Zhang S H, Chen Y, et al. A novel three-dimensional hierarchical CuAl layered double hydroxide with excellent catalytic activity for degradation of methyl orange[J]. RSC Advances, 2017, 7(46): 29051-29057.
32	Dong C L, Yuan X T, Wang X, et al. Rational design of cobalt-chromium layered double hydroxide as a highly efficient electrocatalyst for water oxidation[J]. Journal of Materials Chemistry A, 2016, 4(29): 11292-11298.
33	Chen L J, Sun B, Wang X D, et al. 2D ultrathin nanosheets of Co-Al layered double hydroxides prepared in l-asparagine solution: enhanced peroxidase-like activity and colorimetric detection of glucose[J]. Journal of Materials Chemistry. B, 2013, 1(17): 2268-2274.
34	Huang Y Z, Li F, Zhang X, et al. Cu vacancy engineering on facet dependent CuO to enhance water oxidation efficiency[J]. International Journal of Hydrogen Energy, 2022, 47(15): 9261-9272.
35	Chen W, Yang S, Liu H, et al. Single-atom Ce-modified α-Fe₂O₃ for selective catalytic reduction of NO with NH₃ [J]. Environmental Science & Technology, 2022, 56(14): 10442-10453.
36	陈银飞, 刘华彦. MgFe氧化物催化氧化吸附SO₂的研究[J]. 宁夏大学学报(自然科学版), 2001, 22(2): 178-180.
	Chen Y F, Liu H Y. Study on the MgFe complex oxides for SO₂ catalytic oxidative adsorption[J]. Journal of Ningxia University (Natural Science Edition), 2001, 22(2): 178-180.
37	Li S D, Wang H S, Li W M, et al. Effect of Cu substitution on promoted benzene oxidation over porous CuCo-based catalysts derived from layered double hydroxide with resistance of water vapor[J]. Applied Catalysis B: Environmental, 2015, 166: 260-269.
38	Yang L, Wang P C, Yao L, et al. Copper doping promotion on Ce/CAC-CNT catalysts with high sulfur dioxide tolerance for low-temperature NH₃-SCR[J]. ACS Sustainable Chemistry & Engineering, 2021, 9(2): 987-997.
39	Zhang T, Qiu F, Chang H Z, et al. Identification of active sites and reaction mechanism on low-temperature SCR activity over Cu-SSZ-13 catalysts prepared by different methods[J]. Catalysis Science & Technology, 2016, 6(16): 6294-6304.
40	Wu X, Feng Y L, Liu X Z, et al. Redox & acidity optimizing of LDHs-based CoMnAl mixed oxides for enhancing NH₃-SCR performance[J]. Applied Surface Science, 2019, 495: 143513.
41	Shi Y J, Kong F Z, Wan J, et al. Synergistic effect of ZSM-5 zeolite in Pt-CeO₂-TiO₂/ZSM-5 catalysts for highly efficient catalytic oxidation of VOCs[J]. Industrial & Engineering Chemistry Research, 2023, 62(8): 3546-3556.
42	Chmielarz L, Węgrzyn A, Wojciechowska M, et al. Selective catalytic oxidation (SCO) of ammonia to nitrogen over hydrotalcite originated Mg-Cu-Fe mixed metal oxides[J]. Catalysis Letters, 2011, 141(9): 1345-1354.
43	Yang M, Li S, Deng Y M, et al. Effect of Fe-loading in iron-based catalysts for the CH₄ decomposition to H₂ and nanocarbons[J]. Journal of Environmental Management, 2023, 346: 118999.
44	Wang B, Yang G P, Yang Q L, et al. Fabrication of nanohybrid Spinel@CuO catalysts for propane oxidation: modified spinel and enhanced activity by temperature-dependent acid sites[J]. ACS Applied Materials & Interfaces, 2021, 13(23): 27106-27118.
45	Chen Z, Fan C, Pang L, et al. Direct synthesis of submicron Cu-SAPO-34 as highly efficient and robust catalyst for selective catalytic reduction of NO by NH₃ [J]. Applied Surface Science, 2018, 448: 671-680.
46	Wang Y, Yang D Y, Li S Z, et al. Layered copper manganese oxide for the efficient catalytic CO and VOCs oxidation[J]. Chemical Engineering Journal, 2019, 357: 258-268.
47	Ben Soltan W, Peng J B, Cao Z G, et al. Bimetallic Fe-Mn loaded H-ZSM-5 zeolites for excellent VOCs catalytic oxidation at low-temperatures: synergistic effects and catalytic mechanisms[J]. Chemical Engineering Journal, 2023, 475: 146251.
48	Morales J, Espinos J P, Caballero A, et al. XPS study of interface and ligand effects in supported Cu₂O and CuO nanometric particles[J]. The Journal of Physical Chemistry. B, 2005, 109(16): 7758-7765.
49	He Z, Lin H Q, He P, et al. Effect of boric oxide doping on the stability and activity of a Cu-SiO₂ catalyst for vapor-phase hydrogenation of dimethyl oxalate to ethylene glycol[J]. Journal of Catalysis, 2011, 277(1): 54-63.
50	Scheffe J R, Francés A, King D M, et al. Atomic layer deposition of iron(Ⅲ) oxide on zirconia nanoparticles in a fluidized bed reactor using ferrocene and oxygen[J]. Thin Solid Films, 2009, 517(6): 1874-1879.
51	Hu H, Cai S X, Li H R, et al. In situ DRIFTs investigation of the low-temperature reaction mechanism over Mn-doped Co₃O₄ for the selective catalytic reduction of NO _x with NH₃ [J]. The Journal of Physical Chemistry C, 2015, 119(40): 22924-22933.
52	Li Q, Yang H S, Qiu F M, et al. Promotional effects of carbon nanotubes on V₂O₅/TiO₂ for NO _x removal[J]. Journal of Hazardous Materials, 2011, 192(2): 915-921.
53	Zhu Y Y, Zhou F Y, Wang X Q, et al. Reaction behaviors of NO _x and methanol simultaneous abatement over a ceria-based NH₃-SCR catalyst at low-medium temperatures[J]. The Journal of Physical Chemistry C, 2021, 125(27): 14666-14674.
54	Bethke K A, Li C, Kung M C, et al. The role of NO₂ in the reduction of NO by hydrocarbon over Cu-ZrO₂ and Cu-ZSM-5 catalysts[J]. Catalysis Letters, 1995, 31(2): 287-299.
55	Bertinchamps F, Treinen M, Blangenois N, et al. Positive effect of NO on the performances of VO/TiO-based catalysts in the total oxidation abatement of chlorobenzene[J]. Journal of Catalysis, 2005, 230(2): 493-498.
56	Jiang Z Y, Jing M Z, Feng X B, et al. Stabilizing platinum atoms on CeO₂ oxygen vacancies by metal-support interaction induced interface distortion: mechanism and application[J]. Applied Catalysis B: Environmental, 2020, 278: 119304.
57	Creci S, Wang X T, Carlsson P A, et al. Methoxy ad-species in MFI zeotypes during methane exposure and methanol desorption followed by in situ IR spectroscopy[J]. Catalysis Today, 2021, 369: 123-128.
58	Keresszegi C, Ferri D, Mallat T, et al. Unraveling the surface reactions during liquid-phase oxidation of benzyl alcohol on Pd/Al₂O₃: an in situ ATR-IR study[J]. The Journal of Physical Chemistry B, 2005, 109(2): 958-967.
59	Collins S E, Briand L E, Gambaro L A, et al. Adsorption and decomposition of methanol on gallium oxide polymorphs[J]. The Journal of Physical Chemistry C, 2008, 112(38): 14988-15000.
60	Barreau M, Tarot M L, Duprez D, et al. Remarkable enhancement of the selective catalytic reduction of NO at low temperature by collaborative effect of ethanol and NH₃ over silver supported catalyst[J]. Applied Catalysis B: Environmental, 2018, 220: 19-30.
61	Nusrat Mafy N, Muhibur Rahman M, Mollah M Y A, et al. Temperature perturbation on hydrogen bonding in aqueous solutions at different amide concentrations[J]. ChemistrySelect, 2016, 1(18): 5789-5800.
62	Wang X Q, Zhu Y Y, Liu Y, et al. Tailoring the simultaneous abatement of methanol and NO _x on Sb-Ce-Zr catalysts via copper modification[J]. Frontiers of Environmental Science & Engineering, 2022, 16(10): 130.

编辑推荐 0

Metrics

阅读次数

全文

215

HTML			PDF

最新录用	在线预览	正式出版	最新录用	在线预览	正式出版
1	0	11	70	0	133

来源	本网站	其他网站

次数	73	142
比例	34%	66%

摘要

229

最新录用	在线预览	正式出版

38	0	191

来源	本网站	其他网站

次数	42	187
比例	18%	82%

[1]	白天昊, 王晓雯, 杨梦滋, 段新伟, 米杰, 武蒙蒙. 类水滑石衍生锌基氧化物高温煤气脱硫过程中COS释放行为及其抑制研究[J]. 化工学报, 2023, 74(4): 1772-1780.
[2]	周微, 王福烨, 贺宁, 于海斌, 马新宾, 刘家旭. Cu/SSZ-13催化剂脱硝活性中心与催化性能构效关系的研究[J]. 化工学报, 2022, 73(2): 672-680.
[3]	谢玉仙, 刘涛, 苏胜, 刘利军, 钟毓秀, 马智伟, 许凯, 汪一, 胡松, 向军. 工业窑炉烟气氧含量对钒钛系催化剂NH₃-SCR脱硝反应的影响[J]. 化工学报, 2022, 73(10): 4410-4418.
[4]	杨润农,余林,赵向云,杨晓波,高梓寒,傅广赢,姜久兴,练纬琳,刘武源,范群. 无模板法合成的Phi分子筛在NO选择性催化还原中的应用[J]. 化工学报, 2020, 71(12): 5578-5588.
[5]	卫彩云, 谭静静, 夏晓丽, 赵永祥. 焙烧温度对CuMgAl催化剂催化糠醇加氢制戊二醇的影响[J]. 化工学报, 2019, 70(4): 1409-1419.
[6]	程爱华, 钱大鹏. 棉花模板Zn/Ti/Fe-LDO吸附水中硝酸盐机制[J]. 化工学报, 2018, 69(12): 5283-5291.
[7]	赵士林, 段钰锋, 丁艳军, 谷小兵, 杜明生, 姚婷, 陈聪, 刘猛, 吕剑虹. 320MW燃煤电厂痕量元素的分布、脱除及排放特性[J]. 化工学报, 2017, 68(7): 2910-2917.
[8]	张帅, 张一科, 呼日勒朝克图, 甄彬, 韩明汉. 甲醇氧化制甲醛铁钼催化剂表面结构与活性[J]. 化工学报, 2016, 67(9): 3678-3683.
[9]	胡斌, 刘勇, 杨春敏, 侯大伟, 袁竹林, 杨林军. 化学团聚促进电除尘脱除烟气中PM_2.5和SO₃[J]. 化工学报, 2016, 67(9): 3902-3909.
[10]	廖永进, 张亚平, 余岳溪, 李娟, 郭婉秋, 汪小蕾. MnO_x/WO₃/TiO₂低温选择性催化还原NO_x机理的原位红外研究[J]. 化工学报, 2016, 67(12): 5031-5039.
[11]	高巍, 于心玉, 赵建忠, 程文萍, 杨建国. 金属离子对MgAlX复合氧化物类FCC硫转移剂性能的影响[J]. 化工学报, 2013, 64(4): 1438-1443.
[12]	王天雷，刘梅堂，马鸿文. 层层自组装技术制备类水滑石基新型薄膜材料的研究进展[J]. 化工进展, 2013, 32(07): 1584-1590.
[13]	陆敏，刘媛，李树白，文艺，刘承先. 类水滑石催化剂催化合成碳酸二丙酯[J]. 化工进展, 2013, 32(05): 1070-1073.
[14]	孙金陆1，2，甄卫军1，2，李进1，2. LDHs材料的结构、性质及其应用研究进展[J]. 化工进展, 2013, 32(03): 610-616.
[15]	程翔, 黄新瑞, 王兴祖, 孙德智. ZnAlLa类水滑石对污泥脱水液中磷酸根的吸附 [J]. 化工学报, 2010, 61(4): 955-962.