| 2,4-二羟基苯甲酸辅助合成不同形貌二氧化铈及其在NH3-SCR中的应用 |
| |
| 引用本文： | 苏航,徐蔓,周诗健,杨福,孔岩.2,4-二羟基苯甲酸辅助合成不同形貌二氧化铈及其在NH3-SCR中的应用[J].无机化学学报,2018,34(8):1538-1546. |
| |
| 作者姓名： | 苏航 徐蔓 周诗健 杨福 孔岩 |
| |
| 作者单位： | 南京工业大学化工学院, 材料化学工程国家重点实验室, 南京 210009,南京工业大学化工学院, 材料化学工程国家重点实验室, 南京 210009,南京工业大学化工学院, 材料化学工程国家重点实验室, 南京 210009,南京工业大学化工学院, 材料化学工程国家重点实验室, 南京 210009,南京工业大学化工学院, 材料化学工程国家重点实验室, 南京 210009 |
| |
| 基金项目： | 国家自然科学基金（No.21476108，21476108，21476108，21706121），江苏省自然科学基金（No.BK20170995），江苏省高校自然科学研究项目（No.16KJB530003）和江苏省高等教育机构重点学科建设项目（PAPD）资助。 |
| |
| 摘 要： | 使用2，4-二羟基苯甲酸（DHBA）辅助控制合成出具有不同形貌（棒状与片状）的碱式碳酸铈。在水热阶段，碱式碳酸铈的形貌可以通过DHBA的量进行调控。当DHBA为3.5 mmol时，得到棒状碱式碳酸铈，然而增加DHBA的量至5.0 mmol时，可形成片状碱式碳酸铈。棒状与片状fcc-CeO2（面心立方二氧化铈）可成功地通过相应的焙烧处理获得。所得二氧化铈均有较大的比表面积（>60 m2·g-1），然而与片状二氧化铈相比，棒状二氧化铈有更高的氧化还原能力与更多的酸量。棒状二氧化铈用于NH3-SCR时有着更好的催化活性。
|
| 关 键 词： | 二氧化铈 2 4-二羟基苯甲酸 纳米结构 水热合成 NH3-SCR |
| 收稿时间： | 2018/3/7 0:00:00 |
| 修稿时间： | 2018/5/3 0:00:00 |
CeO2 in Different Morphologies with 2,4-Dihydroxybenzonic Acid as Auxiliary: Synthesis and Application in NH3-SCR |
| |
| SU Hang,XU Man,ZHOU Shi-Jian,YANG Fu and KONG Yan.CeO2 in Different Morphologies with 2,4-Dihydroxybenzonic Acid as Auxiliary: Synthesis and Application in NH3-SCR[J].Chinese Journal of Inorganic Chemistry,2018,34(8):1538-1546. |
| |
| Authors: | SU Hang XU Man ZHOU Shi-Jian YANG Fu and KONG Yan |
| |
| Institution: | State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China,State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China,State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China,State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China and State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China |
| |
| Abstract: | Different morphologies (rod-like and sheet-like) of CeOHCO3 were controllably synthesized by using 2, 4-dihydroxybenzonic acid (DHBA) as auxiliary. During the hydrothermal process, the morphologies of CeOHCO3 were controlled by adding different amount of DHBA. When the amount of DHBA was 3.5 mmol, rod-like CeOHCO3 was synthesized, while by increasing the amount of DHBA to 5.0 mmol, the sheet-like CeOHCO3 was relatively generated. Then the rod-like and sheet-like fcc-CeO2 (face-centered cubic-CeO2) were successfully obtained by the subsequent calcination procedure. The resulted CeO2 affords large surface area (> 60 m2·g-1), while the rod-like CeO2 exhibits higher redox ability and more acid amount compared to those of sheet-like CeO2. In addition, the rod-like CeO2 exhibits better catalytic activity in NH3-SCR. |
| |
| Keywords: | CeO2 2 4-dihydroxybenzonic acid nanostructure hydrothermal synthesis NH3-SCR |
|
| 点击此处可从《无机化学学报》浏览原始摘要信息 |
| 点击此处可从《无机化学学报》下载免费的PDF全文 |
|
