Effects of different precursors on catalytic performances of Rh@ZSM-5 for partial oxidation of methane reaction

ZHU Haonan; LIU Mengtao; LV Yan; MENG Yuanyuan; GUO Yanwen; DING Chuanmin

doi:10.12434/j.issn.2097-2547.20250084

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Effects of different precursors on catalytic performances of Rh@ZSM-5 for partial oxidation of methane reaction

更新时间：2026-02-02

- Effects of different precursors on catalytic performances of Rh@ZSM-5 for partial oxidation of methane reaction
- Vol. 51, Issue 1, Pages: 24-31(2026)
- 作者机构：
  
  太原理工大学化学与化工学院，山西太原 030024
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20250084
  CLC： TQ426
- Received：04 March 2025，
  
  Revised：2025-03-24，
  
  Published：25 January 2026
- 稿件说明：
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朱浩楠,刘梦涛,吕岩等.不同前驱体对Rh@ZSM-5催化甲烷部分氧化反应性能的影响[J].低碳化学与化工,2026,51(1):24-31.

ZHU Haonan,LIU Mengtao,LV Yan,et al.Effects of different precursors on catalytic performances of Rh@ZSM-5 for partial oxidation of methane reaction[J].Low-Carbon Chemistry and Chemical Engineering,2026,51(1):24-31.
朱浩楠,刘梦涛,吕岩等.不同前驱体对Rh@ZSM-5催化甲烷部分氧化反应性能的影响[J].低碳化学与化工,2026,51(1):24-31. DOI： 10.12434/j.issn.2097-2547.20250084.

ZHU Haonan,LIU Mengtao,LV Yan,et al.Effects of different precursors on catalytic performances of Rh@ZSM-5 for partial oxidation of methane reaction[J].Low-Carbon Chemistry and Chemical Engineering,2026,51(1):24-31. DOI： 10.12434/j.issn.2097-2547.20250084.

摘要

甲烷（CH

）是兼具高热值与强温室效应的“双刃剑”能源，开发CH

催化转化技术对能源利用与环境保护至关重要。贵金属催化剂虽在甲烷部分氧化（POM）反应中展现出高CH

转化率与产物选择性，却面临成本高昂的问题，利用分子筛的限域效应增大活性金属分散度来提高贵金属利用率是目前可行的降本方法。为了进一步提高催化剂催化POM反应性能，通过水热合成法，分别以氯化铑和硝酸铑为前驱体制备了Rh@ZSM-5(Cl)和Rh@ZSM-5催化剂，并利用XRD、TEM和N

吸/脱附等技术对催化剂和ZSM-5载体进行了表征，系统探究了前驱体引入对催化剂催化性能的调控作用，测试了催化剂催化性能差异。结果表明，氯化铑前驱体诱导了O—Rh—Cl活性物种生成，该物种显著增强了活性金属与载体的相互作用。Rh@ZSM-5(Cl)在POM反应中展现出优异的催化性能，在900 ℃时，CH

转化率达到90.7%，H

选择性达到94.5%，归因于O—Rh—Cl活性物种促进了水煤气变换反应（WGSR）与POM反应的动态耦合。

Abstract

Methane (CH

) is a “double-edged sword” energy source with high calorific value and stro

ng greenhouse effect

so the development of catalytic conversion technology for CH

is crucial for energy utilization and environmental protection. Although noble metal catalysts show high CH

conversion rates and product selectivities in partial oxidation of methane (POM) reaction

they face the problem of high cost. It is a feasible cost reduction method to improve the utilization rate of noble metals by increasing the dispersion of active metals through the domain-limiting effect of molecular sieves. In order to further improve the catalytic performances of catalysts for POM reaction

a hydrothermal synthesis method was used to prepare Rh@ZSM-5(Cl) and Rh@ZSM-5 catalysts with rhodium chloride and rhodium nitrate as precursors

respectively. The catalysts and ZSM-5 support were characterized by XRD

TEM

adsorption/desorption and so on. The regulatory effect of precursor introduction on the catalytic performances of catalysts were explored

and the differences of catalytic performances were tested. The results show that rhodium chloride precursor induces the generation of O—Rh—Cl active species

significantly enhancing the interaction between active metals and the carriers. Rh@ZSM-5(Cl) exhibits excellent catalytic performance for POM reaction

with CH

conversion rate of 90.7% and H

selectivity of 94.5% at 900 ℃

attributed to the dynamic coupling of water-gas shift reaction (WGSR) and POM reaction promoted by O—Rh—Cl active species.

关键词

Keywords

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