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Optimizing Selective Catalytic Reduction of NO with NH 33 on Fe 22 O 33 /WO 33 via Redox‐Acid Synergy

机译:优化NH的选择性催化还原NH 3 3 在Fe. 2 2 O. 3 3 / wo. 3 3 通过氧化还原酸协同作用

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摘要

Abstract > An iron‐tungsten oxide catalyst was developed for selective catalytic reduction of NO with NH <sub>3</sub> (NH <sub>3</sub> ‐SCR) by supporting Fe <sub>2</sub> O <sub>3</sub> nanoparticles onto hexagonal WO <sub>3</sub> nanorods. The Fe <sub>2</sub> O <sub>3</sub> /WO <sub>3</sub> catalyst showed much higher catalytic activity than Fe <sub>2</sub> O <sub>3</sub> and WO <sub>3</sub> , as explained by the synergistic effects caused by acid sites (provided by WO <sub>3</sub> ) and redox sites (provided by Fe <sub>2</sub> O <sub>3</sub> ). X‐ray diffraction and transmission electron microscopy techniques revealed that the crystal structures and morphologies of Fe <sub>2</sub> O <sub>3</sub> and WO <sub>3</sub> kept unchanged during the preparation of Fe <sub>2</sub> O <sub>3</sub> /WO <sub>3</sub> . NH <sub>3</sub> adsorption curves, NH <sub>3</sub> temperature programmed desorption, and temperature programmed surface reaction of NO demonstrated that WO <sub>3</sub> possessed strong acidity but poor redox ability, whereas Fe <sub>2</sub> O <sub>3</sub> had high redox ability but inadequate acidic property. Therefore, the enhancement in catalytic activity (when using Fe <sub>2</sub> O <sub>3</sub> /WO <sub>3</sub> as a catalyst) should originate from the redox‐acid synergy, as further evidenced by the low SCR activity of pure Fe <sub>2</sub> O <sub>3</sub> and Fe <sub>2</sub> O <sub>3</sub> /TiO <sub>2</sub> with low capacity for adsorbing NH <sub>3</sub> . In addition, Fe <sub>2</sub> O <sub>3</sub> /WO <sub>3</sub> showed high activity and stability in the presence of K + , SO <sub>2</sub> , and H <sub>2</sub> O, demonstrating its potential in practical applications. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译:</span><Abstract Type =“Main”XML:Lang =“en”> <标题类型=“main”>抽象</ title> > 开发了铁钨催化剂,用于选择性催化还原NH <sub> 3 </ sub> (NH. <sub> 3 </ sub> -SCR)通过支持FE <sub> 2 </ sub> O. <sub> 3 </ sub> 纳米粒子在六边形WO上 <sub> 3 </ sub> 纳米棒。 Fe. <sub> 2 </ sub> O. <sub> 3 </ sub> / WO. <sub> 3 </ sub> 催化剂表现出比Fe更高的催化活性 <sub> 2 </ sub> O. <sub> 3 </ sub> 和禾 <sub> 3 </ sub> ,正如酸网站造成的协同效应(由WO提供)所述解释 <sub> 3 </ sub> )和氧化还原网站(由FE提供 <sub> 2 </ sub> O. <sub> 3 </ sub> )。 X射线衍射和透射电子显微镜技术揭示了FE的晶体结构和形态 <sub> 2 </ sub> O. <sub> 3 </ sub> 和禾 <sub> 3 </ sub> 在编制Fe期间保持不变 <sub> 2 </ sub> O. <sub> 3 </ sub> / WO. <sub> 3 </ sub> 。 NH. <sub> 3 </ sub> 吸附曲线,NH <sub> 3 </ sub> 温度编程的解吸,温度编程的表面反应不证明WO <sub> 3 </ sub> 拥有强的酸度,但氧化还原能力差,而FE <sub> 2 </ sub> O. <sub> 3 </ sub> 具有高氧化还原能力,但酸性特性不足。因此,催化活性增强(使用FE时 <sub> 2 </ sub> O. <sub> 3 </ sub> / WO. <sub> 3 </ sub> 作为催化剂)应该源自氧化还原酸协同作用,进一步证明了纯Fe的低SCR活性 <sub> 2 </ sub> O. <sub> 3 </ sub> 和fe. <sub> 2 </ sub> O. <sub> 3 </ sub> / TiO. <sub> 2 </ sub> 高容量吸附NH <sub> 3 </ sub> 。此外,Fe <sub> 2 </ sub> O. <sub> 3 </ sub> / WO. <sub> 3 </ sub> 在K的情况下显示出高活动和稳定性 + </ sup> , 所以 <sub> 2 </ sub> 和h. <sub> 2 </ sub> o,证明其在实际应用中的潜力。 </ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-16041/'>《ChemCatChem》</a> <b style="margin: 0 2px;">|</b><span>2018年第18期</span><b style="margin: 0 2px;">|</b><span>共5页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Li Chao&option=202" target="_blank" rel="nofollow">Li Chao;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Huang Zhiwei&option=202" target="_blank" rel="nofollow">Huang Zhiwei;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Chen Yaxin&option=202" target="_blank" rel="nofollow">Chen Yaxin;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Liu Xiaona&option=202" target="_blank" rel="nofollow">Liu Xiaona;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Chen Junxiao&option=202" target="_blank" rel="nofollow">Chen Junxiao;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Qu Weiye&option=202" target="_blank" rel="nofollow">Qu Weiye;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ma Zhen&option=202" target="_blank" rel="nofollow">Ma Zhen;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Tang Xingfu&option=202" target="_blank" rel="nofollow">Tang Xingfu;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Department of Environmental Science &</p> <p>EngineeringFudan UniversityShanghai 200438 P.R. China;</p> <p>Department of Environmental Science &</p> <p>EngineeringHuaqiao UniversityXiamen 361021 P.R. China;</p> <p>Department of Environmental Science &</p> <p>EngineeringFudan UniversityShanghai 200438 P.R. China;</p> <p>Department of Environmental Science &</p> <p>EngineeringFudan UniversityShanghai 200438 P.R. China;</p> <p>Department of Environmental Science &</p> <p>EngineeringFudan UniversityShanghai 200438 P.R. China;</p> <p>Department of Environmental Science &</p> <p>EngineeringFudan UniversityShanghai 200438 P.R. China;</p> <p>Department of Environmental Science &</p> <p>EngineeringFudan UniversityShanghai 200438 P.R. China;</p> <p>Department of Environmental Science &</p> <p>EngineeringFudan UniversityShanghai 200438 P.R. China;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/1186.html" title="物理化学(理论化学)、化学物理学">物理化学(理论化学)、化学物理学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=iron-based catalysts&option=203" rel="nofollow">iron-based catalysts;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=selective catalytic reduction&option=203" rel="nofollow">selective catalytic reduction;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=redox-acid synergy&option=203" rel="nofollow">redox-acid synergy;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=alkali and sulfur resistance&option=203" rel="nofollow">alkali and sulfur resistance;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=environmentally friendly catalysts&option=203" rel="nofollow">environmentally friendly catalysts;</a> </p> <div class="translation"> 机译:铁基催化剂;选择性催化还原;氧化还原酸协同作用;碱和硫耐药;环保催化剂; </div> </li> </ul> </div> </div> <div class="literature cardcommon" id="literaturereference" style="display:none"> <div class="similarity "> <h3 class="all_title" id="enpatent111">引文网络</h3> <div class="referencetab clearfix"> <ul id="referencedaohang"> <li dataid="referenceul">参考文献</li> <li dataid="citationul">引证文献</li> <li dataid="commonreferenceul">共引文献</li> <li dataid="commoncitationul">同被引文献</li> <li 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href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ming Kong&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Ming Kong,</a> <span>2019</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译:NH3选择性催化还原在v2O5-WO3 / TiO2催化剂中的失活机理的新见解:砷和钾物种之间的协同作用</span> </p> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/academic-journal-cn_journal-fuel-chemistry-technology_thesis/0201247870768.html">Al-PILC负载铜铁复合氧化物在NH3选择性催化还原NO中的协同作用</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=朱斌&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 朱斌</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=费兆阳&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,费兆阳</a> <a 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tuijian_authcolor">,宁平</a> <span> <a href="/journal-cn-56788/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 化学世界 </a> </span> <span> . 2016</span><span>,第1期</span> </span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/academic-journal-cn_chemical-industry-engineering-progress_thesis/0201246960275.html">NH3等离子体优化MnOx/MWCNTs催化剂低温选择性催化还原性能</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=胡月霞&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 胡月霞</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=黄碧纯&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,黄碧纯</a> <span> <a href="/journal-cn-9146/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 化工进展 </a> </span> <span> . 2015</span><span>,第001期</span> </span> </div> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/academic-journal-cn_chinese-journal-catalysis_thesis/0201231582520.html">氧化还原沉淀法制备MnOx-SnO2催化剂及其对NO的NH3选择催化还原性能</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=唐幸福&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 唐幸福</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=李俊华&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,李俊华</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=魏丽斯&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,魏丽斯</a> <span> <a href="/journal-cn-28399/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 催化学报 </a> </span> <span> . 2008</span><span>,第006期</span> </span> </div> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/academic-journal-cn_journal-henan-normal-university-natural-science-edition_thesis/0201296326561.html">Fe_(2)O_(3)/SiC催化剂低温下用NH_(3)选择性催化还原NO</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=白书立&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 白书立</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=薛瑶佳&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,薛瑶佳</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=李换英&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,李换英</a> <span> <a href="/journal-cn-50501/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 河南师范大学学报:自然科学版 </a> </span> <span> . 2021</span><span>,第5期</span> </span> </div> </li> <li> <div> <b>6. </b><a class="enjiyixqcontent" href="/academic-conference-cn_meeting-7_thesis/020225971.html">Ce/BEA催化剂NH3选择性催化还原NOx研究</a> <b>[C]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=施赟&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 施赟</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=李伟&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,李伟</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=李素静&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,李素静</a> <span> <a href="/conference-cn-7/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 第二十一届大气污染防治技术研讨会 </a> <span> <span> . 2017</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/020316164326.html">新型铁基催化剂的制备及其低温NH3选择性催化还原NOX研究</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=牟金成&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 牟金成</a> <span> . 2020</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/06120112545708.html">一种用于等离子体驱动条件下常温NH<Sub>3</Sub>选择性催化还原NO的催化剂及其制备方法</a> <b>[P]</b> . <span> 中国专利: CN112547117A </span> <span> . 2021-03-26</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120111883845.html">一种用于低温等离子体NH<Sub>3</Sub>选择性催化还原过程的催化剂及其制备方法</a> <b>[P]</b> . <span> 中国专利: CN111841562A </span> <span> . 2020-10-30</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130426784971.html">Method for reactivation or optimization of activity of selective catalytic reduction catalytic converter in power station, involves treating selective catalytic reduction catalytic converter with aqueous reactivating or optimization fluid</a> <b>[P]</b> . <span> 外国专利: <!-- 德国专利: --> DE102009008686A1 </span> <span> . 2010-08-12</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译:用于电站中的选择性催化还原催化转化器的再活化或活性优化的方法,涉及用水性活化或优化流体处理选择性催化还原催化转化器 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130417735925.html">Catalyst composition for the selective reduction of nitrogen Oxides and Soot oxidation, which comrpende one or more compounds of Zeolite or zeotipo acids, physically mixed with one or more compounds of metals with redox activity; Structured Body and Method for monolithic; Selective reduction</a> <b>[P]</b> . <span> 外国专利: <!-- --> CL2014000993A1 </span> <span> . 2014-08-22</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译:用于选择性还原氮氧化物和烟灰氧化的催化剂组合物,其包含一种或多种沸石或沸石酸的化合物,并与一种或多种具有氧化还原活性的金属化合物物理混合;整体结构体和方法;选择性还原 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130424320730.html">Method for achieving plausibility of sensor signals of sensor in selective catalytic reduction-catalytic system, involves obtaining signals of three different sensors of selective catalytic reduction-catalytic system</a> <b>[P]</b> . <span> 外国专利: <!-- 德国专利: --> DE102009029107A1 </span> <span> . 2011-03-03</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译:在选择性催化还原催化系统中实现传感器传感器信号合理性的方法,涉及获得选择性催化还原催化系统的三个不同传感器的信号 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 10px;display:none;" > </div> </div> </div> <div id="thesis_get_original1" class="downloadBth" style="bottom: 19px;z-index: 999;" onclick="ywcd('0704022058049','4',7,2,1,'',this,24)" class="delivery" prompt="010401" 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