|
1
|
Lee YH, Kim HM, Jeong CH, Jeong DW. Effects of precipitants on the catalytic performance of Cu/CeO 2 catalysts for the water–gas shift reaction. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00964h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The ratio of the precipitant (K2CO3 : KOH) was confirmed to affect the Cu dispersion and OSC of the Cu/CeO2 catalyst, and the Cu/CeO2 catalyst prepared with the K2CO3 : KOH ratio of 3 : 1 showed the highest activity.
Collapse
Affiliation(s)
- Yong-Hee Lee
- Department of Smart Environmental Energy Engineering, Changwon National University, Republic of Korea
| | - Hak-Min Kim
- Industrial Technology Research Center, Changwon National University, Republic of Korea
| | - Chang-Hoon Jeong
- Department of Smart Environmental Energy Engineering, Changwon National University, Republic of Korea
| | - Dae-Woon Jeong
- Department of Smart Environmental Energy Engineering, Changwon National University, Republic of Korea
- School of Civil, Environmental, and Chemical Engineering, Changwon National University, Republic of Korea
| |
Collapse
|
|
2
|
Mitchell GM, Sabnis KD, Sollberger FG, Cui Y, Han CW, Majumdar P, Zeng Z, Miller JT, Greeley J, Ortalan V, Wang C, Delgass WN, Ribeiro FH. Effect of cobalt addition on platinum supported on multi-walled carbon nanotubes for water-gas shift. J Catal 2020. [DOI: 10.1016/j.jcat.2020.07.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
|
3
|
Hongmanorom P, Ashok J, Das S, Dewangan N, Bian Z, Mitchell G, Xi S, Borgna A, Kawi S. Zr–Ce-incorporated Ni/SBA-15 catalyst for high-temperature water gas shift reaction: Methane suppression by incorporated Zr and Ce. J Catal 2020. [DOI: 10.1016/j.jcat.2019.11.042] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
|
4
|
Catalysis at Metal/Oxide Interfaces: Density Functional Theory and Microkinetic Modeling of Water Gas Shift at Pt/MgO Boundaries. Top Catal 2020. [DOI: 10.1007/s11244-020-01257-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
|
5
|
Kinetics of Water Gas Shift Reaction on Au/CeZrO4: A Comparison Between Conventional Heating and Dielectric Barrier Discharge (DBD) Plasma Activation. Top Catal 2020. [DOI: 10.1007/s11244-020-01245-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
|
6
|
Fu XP, Guo LW, Wang WW, Ma C, Jia CJ, Wu K, Si R, Sun LD, Yan CH. Direct Identification of Active Surface Species for the Water-Gas Shift Reaction on a Gold-Ceria Catalyst. J Am Chem Soc 2019; 141:4613-4623. [PMID: 30807152 DOI: 10.1021/jacs.8b09306] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The crucial role of the metal-oxide interface in the catalysts of the water-gas shift (WGS) reaction has been recognized, while the precise illustration of the intrinsic reaction at the interfacial site has scarcely been presented. Here, two kinds of gold-ceria catalysts with totally distinct gold species, <2 nm clusters and 3 to 4 nm particles, were synthesized as catalysts for the WGS reaction. We found that the gold cluster catalyst exhibited a superiority in reactivity compared to gold nanoparticles. With the aid of comprehensive in situ characterization techniques, the bridged -OH groups that formed on the surface oxygen vacancies of the ceria support are directly determined to be the sole active configuration among various surface hydroxyls in the gold-ceria catalysts. The isotopic tracing results further proved that the reaction between bridged surface -OH groups and CO molecules adsorbed on interfacial Au atoms contributes dominantly to the WGS reactivity. Thus, the abundant interfacial sites in gold clusters on the ceria surface induced superior reactivity compared to that of supported gold nanoparticles in catalyzing the WGS reaction. On the basis of direct and solid experimental evidence, we have obtained a very clear image of the surface reaction for the WGS reaction catalyzed by the gold-ceria catalyst.
Collapse
Affiliation(s)
- Xin-Pu Fu
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , China
| | - Li-Wen Guo
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , China
| | - Wei-Wei Wang
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , China
| | - Chao Ma
- College of Materials Science and Engineering , Hunan University , Changsha 410082 , China
| | - Chun-Jiang Jia
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , China
| | - Ke Wu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry , Peking University , Beijing 100871 , China
| | - Rui Si
- Shanghai Synchrotron Radiation Facility , Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201204 , China
| | - Ling-Dong Sun
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry , Peking University , Beijing 100871 , China
| | - Chun-Hua Yan
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry , Peking University , Beijing 100871 , China
| |
Collapse
|
|
7
|
Kauppinen MM, Melander MM, Bazhenov AS, Honkala K. Unraveling the Role of the Rh–ZrO2 Interface in the Water–Gas-Shift Reaction via a First-Principles Microkinetic Study. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02596] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Minttu M. Kauppinen
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35, 40014 Jyväskylä, Finland
| | - Marko M. Melander
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35, 40014 Jyväskylä, Finland
| | - Andrey S. Bazhenov
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35, 40014 Jyväskylä, Finland
| | - Karoliina Honkala
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35, 40014 Jyväskylä, Finland
| |
Collapse
|
|
9
|
Reactive metal–support interactions at moderate temperature in two-dimensional niobium-carbide-supported platinum catalysts. Nat Catal 2018. [DOI: 10.1038/s41929-018-0067-8] [Citation(s) in RCA: 171] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|