强氧还原性氮化硼的制备及其催化甲烷部分氧化反应性能

闫妍琼; 王晓斌; 陈海洁; 吕岩; 原沁波; 丁传敏; 王俊文

doi:10.12434/j.issn.2097-2547.20240081

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强氧还原性氮化硼的制备及其催化甲烷部分氧化反应性能

C1化学与催化转化

- 强氧还原性氮化硼的制备及其催化甲烷部分氧化反应性能
- Preparation of strongly oxygen reduction boron nitride and its catalytic performance for partial oxidation of methane
- 低碳化学与化工 2024, 49(12): 27-32.
- 作者机构：
  
  1.太原理工大学化学工程与技术学院，山西太原 030024
  2.上海电气国控环球工程有限公司，山西太原 030024
  3.清创人和生态工程技术有限公司，山西太原 030031
- 作者简介：
  
  闫妍琼（1998—），硕士研究生，研究方向为C1化学与多相催化，E-mail：1952489484@qq.com。
  丁传敏（1986—），博士，副教授，硕士研究生导师，研究方向为C1化学与多相催化，E-mail：dingchuanmin@tyut.edu.cn。
- 基金信息：
  
  山西自然科学基金面上项目(202203021221091)
- DOI：10.12434/j.issn.2097-2547.20240081
  中图分类号： TQ426;O643.36
- 纸质出版日期：2024-12-25，
  
  收稿日期：2024-03-03，
  
  修回日期：2024-03-28，
- 稿件说明：
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闫妍琼,王晓斌,陈海洁等.强氧还原性氮化硼的制备及其催化甲烷部分氧化反应性能[J].低碳化学与化工,2024,49(12):27-32.

YAN Yanqiong,WANG Xiaobin,CHEN Haijie,et al.Preparation of strongly oxygen reduction boron nitride and its catalytic performance for partial oxidation of methane[J].Low-carbon Chemistry and Chemical Engineering,2024,49(12):27-32.
闫妍琼,王晓斌,陈海洁等.强氧还原性氮化硼的制备及其催化甲烷部分氧化反应性能[J].低碳化学与化工,2024,49(12):27-32. DOI： 10.12434/j.issn.2097-2547.20240081.

YAN Yanqiong,WANG Xiaobin,CHEN Haijie,et al.Preparation of strongly oxygen reduction boron nitride and its catalytic performance for partial oxidation of methane[J].Low-carbon Chemistry and Chemical Engineering,2024,49(12):27-32. DOI： 10.12434/j.issn.2097-2547.20240081.

摘要

氮化硼（BN）作为一种新兴的二维无机材料，近年来在烷烃氧化脱氢方面得到了广泛的应用，目前有研究表明氧物种的引入可以使BN具有更好的催化性能。采用以硼酸为硼源、尿素为氮源直接共融的合成方法制备了含氧BN催化剂（

(硼酸):

(尿素) = 1:1、1:2、1:3和1:4），探究了在温度400~700 ℃、空速14400 mL/(g·h)和

(CH

) = 2:1的反应条件下，催化剂在甲烷部分氧化（POM）反应中的催化性能。采用FT-IR、ICP-OES、XRD和循环伏安（CV）等测试方法对催化剂的含氧官能团、元素含量（质量分数）、晶相结构和氧还原性能等进行了表征。结果表明，在POM反应中，

(硼酸):

(尿素) = 1:2条件下制得的催化剂（BN-1:2）表现出最佳的催化性能（CH

转化率43%，CO选择性72%，H

选择性17%）。与其他3种催化剂相比，BN-1:2具有最高的结晶度，使其与O

的相互作用更强，促进O

活化，而且BN-1:2在CV测试中具有最大的电流密度（3.4889 × 10

-4

A/cm

），说明其具有最强的氧还原性能，可促进活性位点形成，从而表现出更好的催化性能。

Abstract

As an emerging two-dimensional inorganic material

boron nitride (BN) has been widely used in the oxidative dehydrogenation of alkanes in recent years

and it is now shown that the introduction of oxygen species makes the BN have a better catalytic performance. The oxygenated BN catalysts (

(boric acid):

(urea) = 1:1

1:2

1:3 and 1:4) were prepared by direct co-fusion synthesis using boric acid as the boron source and urea as the nitrogen source. Under the conditions of temperature from 400 to 700 ℃

space velocity 14400 mL/(g·h) and

(CH

) = 2:1

the catalytic performances of the catalysts for partial oxidation of methane (POM) r

eaction were investigated. The oxygen-containing functional groups

elemental contents (mass fraction)

crystalline structures and oxygen reduction abilities of the catalysts were characterized by FT-IR

ICP-OES

XRD and cyclic voltammetry (CV). The results show that in POM reaction

the catalyst (BN-1:2) under the condition of

(boric acid):

(urea) = 1:2 exhibites the best catalytic performance (CH

conversion rate of 43%

CO selectivity of 72% and H

selectivity of 17%). Compared with the other three catalysts

BN-1:2 has the highest crystallinity

which makes the interaction between BN-1:2 and O

stronger and promotes O

activation. BN-1:2 has the highest current density in CV tests

indicating that it has the strongest oxygen reduction capability (3.4889 × 10

-4

A/cm

)

which promotes active site formation and thus exhibits better catalytic performance.

关键词

氮化硼甲烷部分氧化氧还原性能催化剂

Keywords

boron nitridepartial oxidation of methaneoxygen reduction capabilitycatalysts

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