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Processes
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Metal-Support Interactions in Heterogeneous Catalysis
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Metal-Support Interactions in Heterogeneous Catalysis

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Catalysis Enhanced Processes".

Deadline for manuscript submissions: closed (20 September 2023) | Viewed by 4808

Special Issue Editors

Dr. Ningqiang Zhang

E-Mail Website
Guest Editor
Institute for Catalysis, Hokkaido University, Sapporo 001-0021, Japan
Interests: environmental catalysis; air pollution control; atomically dispersed catalyst
Dr. Han Yan

E-Mail Website
Guest Editor
Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
Interests: heterogeneous catalysis; catalyst characterization; catalyst synthesis; nano-catalysis; catalyst deactivation; kinetics; catalyst design

Special Issue Information

Dear Colleagues,

Supported catalysts constitute a pivotal part of heterogeneous catalysts. With the advances in inorganic synthesis and characterization techniques, numerous research highlights related to the study of metal–support interactions have emerged, including single-atom catalysis, in-situ/operando characterizations and dynamic structural evolution. The interaction and synergy between metals and supports have received a great deal of research attention. By regulating the size, configuration and chemical states of the active sites, metal–support interactions play a key role in controlling catalytic performance. Deep understanding and insights in studying metal–support interactions in different catalyst systems is very likely to benefit the design strategies of novel heterogeneous catalysts.

This Special Issue on “Metal-Support Interactions in Heterogeneous Catalysis” seeks the latest advances in heterogeneous catalysis focusing on the study of metal–support interactions for thermal, electro- and photo-catalysis. Topics include, but are not limited to:

  • Novel preparation routes and precise size control of supported catalysts;
  • In situ/operando characterization of supported catalysts;
  • Identification of catalytic interfaces;
  • Regulation of metal–support interactions toward advanced heterogeneous catalysts.

Dr. Ningqiang Zhang
Dr. Han Yan
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Processes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • supported catalysts
  • metal–support interaction
  • heterogeneous catalysis
  • catalytic interfaces
  • in situ/operando characterization

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Published Papers (3 papers)

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Research

18 pages, 5582 KiB  
Article
The Influence of Metal–Support Interactions on the Performance of Ni-MoS2/Al2O3 Catalysts for Dibenzothiophene Hydrodesulfurization
by Chuangchuang Yang, Qiaoling Dai, Anpeng Hu, Hui Yuan and Qinghe Yang
Processes 2023, 11(11), 3181; https://doi.org/10.3390/pr11113181 - 8 Nov 2023
Cited by 1 | Viewed by 1092
Abstract
In this present work, a new kind of sulfurized hydrodesulfurization catalyst was synthesized via the hydrothermal treatment of MoS2, NiCO3·2Ni(OH)2·4H2O, and Al2O3 precursors, followed by annealing under a H2 atmosphere, which [...] Read more.
In this present work, a new kind of sulfurized hydrodesulfurization catalyst was synthesized via the hydrothermal treatment of MoS2, NiCO3·2Ni(OH)2·4H2O, and Al2O3 precursors, followed by annealing under a H2 atmosphere, which does not require a sulfurization process compared to traditional preparation methods. The influence of the annealing temperature and the type of Al2O3 precursor on the interactions between MoS2 and Al2O3 were studied using X-ray fluorescence spectroscopy, X-ray diffraction, N2 adsorption–desorption, Raman spectroscopy, X-ray photoelectron spectroscopy, and high-resolution transmission electron microscopy. The results indicated an increase in the number of stacked layers of the MoS2 catalyst, accompanied by a decrease in the degree of decoration of Ni atoms onto MoS2 nanoslabs, as a result of the strengthened MoS2–Al2O3 interaction. Subsequently, the efficiency of hydrodesulfurization (HDS) was evaluated using dibenzothiophene as a representative reactant, while establishing a correlation between the structure of the catalyst and its performance. The catalysts, using pseudo-boehmite as the precursor and calcined at 500 °C, synthesized by calcining pseudo-boehmite as the precursor for Al2O3 at a temperature of 500 °C and possessing suitable metal–support interactions, exhibited a reduced number of MoS2 stacking layers and lateral dimensions, along with an optimal decoration degree of Ni atoms, thereby resulting in the highest level of HDS activity. Full article
(This article belongs to the Special Issue Metal-Support Interactions in Heterogeneous Catalysis)
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14 pages, 6526 KiB  
Article
The Preparation of Mn-Modified CeO2 Nanosphere Catalysts and Their Catalytic Performance for Soot Combustion
by Siyu Gao, Di Yu, Shengran Zhou, Chunlei Zhang, Lanyi Wang, Xiaoqiang Fan, Xuehua Yu and Zhen Zhao
Processes 2023, 11(10), 2902; https://doi.org/10.3390/pr11102902 - 2 Oct 2023
Cited by 2 | Viewed by 1243
Abstract
With the increasing stringency of environmental protection regulations, reducing the severe pollution caused by soot particles from diesel vehicle exhaust has become a widespread concern. Catalytic purification technology is currently an efficient method for eliminating soot particles, which needs to develop high-activity catalysts. [...] Read more.
With the increasing stringency of environmental protection regulations, reducing the severe pollution caused by soot particles from diesel vehicle exhaust has become a widespread concern. Catalytic purification technology is currently an efficient method for eliminating soot particles, which needs to develop high-activity catalysts. This work uses a two-step hydrothermal method to synthesize MnOx/CeO2 nanosphere catalysts, which have synergistic effects between manganese and cerium, and have high reactive oxygen species. Among them, the MnCe-1:4 catalyst represents the optimal catalytic activity, and the values of T10, T50, and T90 are 289, 340, and 373 °C, respectively. On account of their simple synthetic procedure and low cost, the prepared MnOx/CeO2 nanosphere catalysts have good prospects for practical applications. Full article
(This article belongs to the Special Issue Metal-Support Interactions in Heterogeneous Catalysis)
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17 pages, 5298 KiB  
Article
Enhanced Activation of Peroxymonosulfate via Sulfate Radicals and Singlet Oxygen by SrCoxMn1−xO3 Perovskites for the Degradation of Rhodamine B
by Penghui Shao, Xiping Yin, Chenyu Yu, Shuai Han, Baohuai Zhao, Kezhi Li, Xiang Li, Zhenyu Yang, Zhiwei Yuan, Qinzhi Shi, Jing Ren, Haiqiang Hu, Kai Cui, Tengfei Li and Jun Jiang
Processes 2023, 11(4), 1279; https://doi.org/10.3390/pr11041279 - 20 Apr 2023
Cited by 5 | Viewed by 2171
Abstract
Perovskite is of burgeoning interest in catalysis, principally due to such material having high thermal stability, modifiable variability, ferromagnetism, and excellent catalytic performance in peroxomonosulfate (PMS) activation. In this study, the SrCoxMn1−xO3 perovskites with different Mn doping [...] Read more.
Perovskite is of burgeoning interest in catalysis, principally due to such material having high thermal stability, modifiable variability, ferromagnetism, and excellent catalytic performance in peroxomonosulfate (PMS) activation. In this study, the SrCoxMn1−xO3 perovskites with different Mn doping were synthesized by a facile sol-gel method for peroxymonosulfate (PMS) activation to degrade Rhodamine B. The obtained SrCo0.5Mn0.5O3 perovskite exhibited the best catalytic efficiency, as Rhodamine B (40 mg/L) was removed completely within 30 min. In the system of SrCo0.5Mn0.5O3–PMS, several reactive species were produced, among which sulfate radicals and the singlet oxygen mainly contributed to Rhodamine B degradation. The relatively high catalytic performance could be attributed to the coupled redox cycle between Mn and Co, and the abundant oxygen vacancies. Moreover, the SrCo0.5Mn0.5O3 catalyst showed excellent stability and reusability, maintaining a high catalytic activity after several cycling tests. This study demonstrated that the Mn doping of SrCoO3 could not only enhance the B-site activation in SrCo0.5Mn0.5O3 but also enrich the oxygen vacancies, thus improving the efficiency of PMS activation. Full article
(This article belongs to the Special Issue Metal-Support Interactions in Heterogeneous Catalysis)
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