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[1]董云海,赵锦波,彭钢,等.磷铁摩尔比对磷酸铁结构及其催化转化2,3-丁二醇性能的影响[J].南京工业大学学报(自然科学版),2016,38(04):51-57.[doi:10.3969/j.issn.1671-7627.2016.04.010]
 DONG Yunhai,ZHAO Jinbo,PENG Gang,et al.Effects of P/Fe molar ratio on structure and catalytic activity of iron phosphate for 2,3-butanediol transformation[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2016,38(04):51-57.[doi:10.3969/j.issn.1671-7627.2016.04.010]
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磷铁摩尔比对磷酸铁结构及其催化转化2,3-丁二醇性能的影响()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
38
期数:
2016年04期
页码:
51-57
栏目:
出版日期:
2016-07-10

文章信息/Info

Title:
Effects of P/Fe molar ratio on structure and catalytic activity of iron phosphate for 2,3-butanediol transformation
文章编号:
1671-7627(2016)04-0051-07
作者:
董云海赵锦波彭钢余定华
南京工业大学 生物与制药工程学院,江苏 南京 211800
Author(s):
DONG YunhaiZHAO JinboPENG GangYU Dinghua
College of Biotechnology and Pharmaceutical Engineering,Nanjing Tech University,Nanjing 211800,China
关键词:
磷酸铁 23-丁二醇 脱水 断裂 脱氢
Keywords:
iron phosphate 23-butanediol dehydration cleavage dehydrogenation
分类号:
TQ426.94
DOI:
10.3969/j.issn.1671-7627.2016.04.010
文献标志码:
A
摘要:
通过水热合成方法制备一系列不同摩尔比的磷酸铁催化剂,测试了其催化转化2,3-丁二醇的性能。利用X线衍射(XRD)、NH3程序升温脱附(NH3-TPD)、H2程序升温还原(H2-TPR)、傅里叶变换红外光谱(FT-IR)、热质量-差热分析法(TG-DTA)及N2吸附-脱附等手段表征催化剂的结构和表面性质。实验发现,低磷铁比催化剂转化2,3-丁二醇的主要产物为氧化断裂产物乙醛,而高磷铁比催化剂的主要产物则为脱水产物丁酮。表征结果表明,低磷铁比FePO4有着更强的表面氧化还原活性和较弱的表面酸性,随着磷铁摩尔比升高,催化剂表面酸性得到增强而氧化还原性减弱。提出了一种2,3-丁二醇在酸性与氧化还原性双功能催化剂上的转化机制。
Abstract:
A series of iron phosphate catalysts with different P/Fe molar ratios prepared with hydrothemal synthesis method were used to test the effects on 2,3-butanediol transformation. The catalyst structures and surface properties were characterized by several physico-chemical methods, including X-ray diffraction(XRD), NH3 temperature-programmed desorption(NH3-TPD), H2 temperature-programmed reduction(H2-TPR), Furier transform infrared spectroscopy(FT-IR), thermagravimetry-differential thermal analysis(TG-DTA), and N2 adsorption-desorption. The catalysts with lower P/Fe molar ratios could catalyze the cracking reaction of 2,3-butanediol to aldehyde,while the catalysts with higher P/Fe molar ratios could catalyze the dehydration reaction of 2,3-butanediol to butanone. The characterization results showed that the catalysts with lower P/Fe ratios had stronger oxidation activity and weaker acidity,and the surface acidity of catallysts could be enhanced and the surface redox properties decreased with the increase of phosphate content. A transformation mechanism of 2,3-butanediol on solid acid and redox catalysts was proposed.

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备注/Memo

备注/Memo:
收稿日期:2015-03-23
基金项目:国家自然科学基金(21376120)
作者简介:董云海(1989—),男,安徽天长人,硕士,主要研究方向为工业催化; 余定华(联系人),副教授,E-mail:yudh@njtech.edu.cn.
引用本文:董云海,赵锦波,彭钢,等.磷铁摩尔比对磷酸铁结构及其催化转化2,3-丁二醇性能的影响[J].南京工业大学学报(自然科学版),2016,38(4):51-57..
更新日期/Last Update: 2016-07-10