1
|
Liu Y, Li Y, Yu Q, Roy S, Yu X. Review of Theoretical and Computational Studies of Bulk and Single Atom Catalysts for H 2 S Catalytic Conversion. Chemphyschem 2024; 25:e202300732. [PMID: 38146966 DOI: 10.1002/cphc.202300732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/18/2023] [Accepted: 12/26/2023] [Indexed: 12/27/2023]
Abstract
Catalytic conversion of hydrogen sulfide (H2 S) plays a vital role in environmental protection and safety production. In this review, recent theoretical advances for catalytic conversion of H2 S are systemically summarized. Firstly, different mechanisms of catalytic conversion of H2 S are elucidated. Secondly, theoretical studies of catalytic conversion of H2 S on surfaces of metals, metal compounds, and single-atom catalysts (SACs) are systematically reviewed. In the meantime, various strategies which have been adopted to improve the catalytic performance of catalysts in the catalytic conversion of H2 S are also reviewed, mainly including facet morphology control, doped heteroatoms, metal deposition, and defective engineering. Finally, new directions of catalytic conversion of H2 S are proposed and potential strategies to further promote conversion of H2 S are also suggested: including SACs, double atom catalysts (DACs), single cluster catalysts (SCCs), frustrated Lewis pairs (FLPs), etc. The present comprehensive review can provide an insight for the future development of new catalysts for the catalytic conversion of H2 S.
Collapse
Affiliation(s)
- Yubin Liu
- School of Chemical & Environment Sciences, Shaanxi Key Laboratory of Catalysis, Institute of Theoretical and Computational Chemistry, Shaanxi University of Technology, Hanzhong, 723000, China
| | - Yuqiong Li
- School of Chemical & Environment Sciences, Shaanxi Key Laboratory of Catalysis, Institute of Theoretical and Computational Chemistry, Shaanxi University of Technology, Hanzhong, 723000, China
| | - Qi Yu
- School of Materials Science and Engineering, Institute of Graphene at Shaanxi Key Laboratory of Catalysis, Shaanxi University of Technology, Hanzhong, 723000, China
| | - Soumendra Roy
- School of Chemical & Environment Sciences, Shaanxi Key Laboratory of Catalysis, Institute of Theoretical and Computational Chemistry, Shaanxi University of Technology, Hanzhong, 723000, China
| | - Xiaohu Yu
- School of Chemical & Environment Sciences, Shaanxi Key Laboratory of Catalysis, Institute of Theoretical and Computational Chemistry, Shaanxi University of Technology, Hanzhong, 723000, China
| |
Collapse
|
2
|
Probing the Roles of S Atom and Nanoparticle Size over Different Sizes of S-modified Cu and Pd Nanoparticles in Regulating Catalytic Performance of Acetylene Semi-hydrogenation. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2023.118494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
3
|
Zhang A, Dong A, Gui Y. Gas-Sensing Properties of B/N-Modified SnS 2 Monolayer to Greenhouse Gases (NH 3, Cl 2, and C 2H 2). MATERIALS 2022; 15:ma15155152. [PMID: 35897583 PMCID: PMC9330703 DOI: 10.3390/ma15155152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/18/2022] [Accepted: 07/19/2022] [Indexed: 02/04/2023]
Abstract
The adsorption capacity of intrinsic SnS2 to NH3, Cl2 and C2H2 is very weak. However, non-metallic elements B and N have strong chemical activity, which can significantly improve the conductivity and gas sensitivity of SnS2. Based on density functional theory, SnS2 was modified with B and N atoms to analyze its adsorption mechanism and gas sensitivity for NH3, Cl2 and C2H2 gases. The optimal structure, adsorption energy, state density and frontier molecular orbital theory are analyzed, and the results are in good agreement with the experimental results. The results show that the adsorption of gas molecules is exothermic and spontaneous. Only the adsorption of NH3 and Cl2 on B-SnS2 belongs to chemical adsorption, whereas other gas adsorption systems belong to physical adsorption. Moderate adsorption distance, large adsorption energy, charge transfer and frontier molecular orbital analysis show that gas adsorption leads to the change of the conductivity of the modified SnS2 system. The adsorption capacity of B-SnS2 to these gases is Cl2 > NH3 > C2H2. The adsorption capacity of N-SnS2 is NH3 > C2H2 > Cl2. Therefore, according to different conductivity changes, B-SnS2 and N-SnS2 materials can be developed for greenhouse gas detection of gas sensors.
Collapse
Affiliation(s)
- Aijuan Zhang
- College of Physics and Electronic Engineering, Xianyang Normal University, Xianyang 712000, China;
| | - Aijuan Dong
- Qinhuangdao Vocational and Technical College, Qinhuangdao 066100, China
- Correspondence:
| | - Yingang Gui
- College of Engineering and Technology, Southwest University, Chongqing 400715, China;
| |
Collapse
|
4
|
Startsev A. Shift of the H 2S paradigm. J Sulphur Chem 2022. [DOI: 10.1080/17415993.2022.2088234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
5
|
Yang Y, Zhu X, Wang L, Lang J, Yao G, Qin T, Ren Z, Chen L, Liu X, Li W, Wan Y. Breaking scaling relationships in alkynol semi-hydrogenation by manipulating interstitial atoms in Pd with d-electron gain. Nat Commun 2022; 13:2754. [PMID: 35585084 PMCID: PMC9117217 DOI: 10.1038/s41467-022-30540-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 05/05/2022] [Indexed: 11/17/2022] Open
Abstract
Pd catalysts are widely used in alkynol semi-hydrogenation. However, due to the existence of scaling relationships of adsorption energies between the key adsorbed species, the increase in conversion is frequently accompanied by side reactions, thereby reducing the selectivity to alkenols. We report that the simultaneous increase in alkenol selectivity and alkynol conversion is achieved by manipulating interstitial atoms including B, P, C, S and N in Pd catalysts. A negative linear relationship is observed between the activation entropies of 2-methyl-3-butyn-2-ol and 2-methyl-3-buten-2-ol which is highly related to the filling of d-orbital of Pd catalysts by the modification of p-block elements. A catalyst co-modified by B and C atoms has the maximum d charge of Pd that achieves a 17-fold increase in the turn-over frequency values compared to the Lindlar catalysts in the semi-hydrogenation of 2-methyl-3-butyn-2-ol. When the conversion is close to 100%, the selectivity can be as high as 95%. Circumventing the linear scaling relationship in the semi-hydrogenation is challenging. Here the authors report a method for breaking the scaling relationships using ordered mesoporous carbon-supported Pd nanocatalysts with d-electron gain by p-block atoms occupying interstitial sites in the lattice as a greener alternative to Lindlar catalysts for the selective hydrogenation of alkynols.
Collapse
Affiliation(s)
- Yang Yang
- The Education Ministry Key Laboratory of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai, 200234, China
| | - Xiaojuan Zhu
- The Education Ministry Key Laboratory of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai, 200234, China
| | - Lili Wang
- The Education Ministry Key Laboratory of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai, 200234, China
| | - Junyu Lang
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, China
| | - Guohua Yao
- The Education Ministry Key Laboratory of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai, 200234, China
| | - Tian Qin
- School of Chemistry and Chemical Engineering, In-situ Center for Physical Sciences, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Zhouhong Ren
- School of Chemistry and Chemical Engineering, In-situ Center for Physical Sciences, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Liwei Chen
- School of Chemistry and Chemical Engineering, In-situ Center for Physical Sciences, Shanghai Jiao Tong University, Shanghai, 200240, China.,School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xi Liu
- School of Chemistry and Chemical Engineering, In-situ Center for Physical Sciences, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Wei Li
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, China.
| | - Ying Wan
- The Education Ministry Key Laboratory of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai, 200234, China.
| |
Collapse
|
6
|
Adsorption and decomposition of H2S on C2N sheet with embedded manganese atom: First-principles calculations. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2021.111443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
7
|
RAMOTHE V, Charlet L, Gilbert B, Sassi M, Simonnin P, Rosso K. Ab initio modeling of H 2S dissociative chemisorption on Ag(100). Phys Chem Chem Phys 2022; 24:18751-18763. [DOI: 10.1039/d1cp05612c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Natural sulfidation of silver nanomaterials can passivate the surface, while preserving desirable optical and electrical properties, which is beneficial for limiting Ag+ release and cytotoxicity. But little is known at...
Collapse
|
8
|
Computational modeling of green hydrogen generation from photocatalytic H2S splitting: Overview and perspectives. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C: PHOTOCHEMISTRY REVIEWS 2021. [DOI: 10.1016/j.jphotochemrev.2021.100456] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
9
|
Cai H, Chin YHC. Catalytic Effects of Chemisorbed Sulfur on Pyridine and Cyclohexene Hydrogenation on Pd and Pt Clusters. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04213] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Haiting Cai
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada
| | - Ya-Huei Cathy Chin
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada
| |
Collapse
|
10
|
Startsev A. The crucial role of catalysts in the reaction of low temperature decomposition of hydrogen sulfide: Non-equilibrium thermodynamics of the irreversible process in an open system. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111240] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
11
|
Mudchimo T, Kamchompoo S, Injongkol Y, Rattanawan R, Kungwan N, Jungsuttiwong S. Removal of H 2S to produce hydrogen in the presence of CO on a transition metal-doped ZSM-12 catalyst: a DFT mechanistic study. Phys Chem Chem Phys 2020; 22:19877-19887. [PMID: 32852020 DOI: 10.1039/d0cp02480e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Hydrogen sulfide (H2S) leads to corrosion in transport lines and poisoning of many catalysts. Meanwhile, H2S is an inexhaustible potential source of hydrogen, which is a very valuable chemical reagent and an environmentally friendly energy product. Therefore, removal of H2S and producing hydrogen gas using potential catalysts has been intensively studied, according to the equation: H2S(g) + CO(g) → COS(g) + H2(g). In this study, hydrogen sulfide (H2S) decomposition in the presence of CO over transition metal-doped ZSM-12 clusters (TM-ZSM-12) has been investigated based on DFT calculations at the B3LYP-D3/6-31G(d,p) level. The calculation results reveal that the proposed reaction mechanism is controlled by 4 key steps, (i) hydrogen dissociation (Ea1 = +0.04 eV for the 1st hydrogen and Ea2 = +0.22 eV for the 2nd hydrogen), (ii) COS desorption (the rate-determining step of this H2S removal process, Edes = +1.18 eV), (iii) hydrogen diffusion to the transition metal with an energy barrier (Ea3) of +0.62 eV, and (iv) the H2 formation step (Ea4 = +0.94 eV). Our results indicate that in the presence of CO, the Cu-ZSM-12 cluster has a potential application as a highly active catalyst for H2S removal together with hydrogen production.
Collapse
Affiliation(s)
- Tanabat Mudchimo
- Center for Organic Electronic and Alternative Energy, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand.
| | | | | | | | | | | |
Collapse
|
12
|
Rezaei–Sameti M, Nourian M. Interaction of hydrogen sulfide with the pristine and B&N-doped beryllium oxide nanotube: DFT study. J Sulphur Chem 2020. [DOI: 10.1080/17415993.2020.1807020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- M. Rezaei–Sameti
- Department of Applied Chemistry, Faculty of Science, Malayer University, Malayer, Iran
| | - M. Nourian
- Department of Applied Chemistry, Faculty of Science, Malayer University, Malayer, Iran
| |
Collapse
|
13
|
Cho A, Hwang B, Han JW. Development of Ni-based alloy catalysts to improve the sulfur poisoning resistance of Ni/YSZ anodes in SOFCs. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00815j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Alloying Au into Ni surfaces provides a way to alleviate sulfur poisoning in the anode of solid oxide fuel cells.
Collapse
Affiliation(s)
- Ara Cho
- Department of Chemical Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang
- Republic of Korea
| | - Bohyun Hwang
- Department of Chemical Engineering
- University of Seoul
- Seoul 02504
- Republic of Korea
| | - Jeong Woo Han
- Department of Chemical Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang
- Republic of Korea
| |
Collapse
|
14
|
Li J, Zhao J, Shao H, Zhang Y, Dong H, Xia L, Hu S. Anticorrosion mechanism of Cr-doped nickel-base alloy in Br/O environment: a DFT study. MOLECULAR SIMULATION 2019. [DOI: 10.1080/08927022.2019.1657861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Jiyong Li
- Material Testing Center of Petroleum Engineering Technology Research Institute Shengli Oil Company Ltd, SINOPEC, Dongying, Shandong Province, People’s Republic of China
| | - Junqiao Zhao
- Material Testing Center of Petroleum Engineering Technology Research Institute Shengli Oil Company Ltd, SINOPEC, Dongying, Shandong Province, People’s Republic of China
| | - Hongyun Shao
- Material Testing Center of Petroleum Engineering Technology Research Institute Shengli Oil Company Ltd, SINOPEC, Dongying, Shandong Province, People’s Republic of China
| | - Yunzhi Zhang
- Material Testing Center of Petroleum Engineering Technology Research Institute Shengli Oil Company Ltd, SINOPEC, Dongying, Shandong Province, People’s Republic of China
| | - Hao Dong
- Material Testing Center of Petroleum Engineering Technology Research Institute Shengli Oil Company Ltd, SINOPEC, Dongying, Shandong Province, People’s Republic of China
| | - Lingran Xia
- Material Testing Center of Petroleum Engineering Technology Research Institute Shengli Oil Company Ltd, SINOPEC, Dongying, Shandong Province, People’s Republic of China
| | - Songqing Hu
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong Province, People’s Republic of China
| |
Collapse
|
15
|
Modeling Sulfur Poisoning of Palladium Membranes Used for Hydrogen Separation. INTERNATIONAL JOURNAL OF CHEMICAL ENGINEERING 2019. [DOI: 10.1155/2019/9825280] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Hydrocarbons are the most important source for hydrogen production. A combined reaction-separation process using inorganic membranes can significantly increase the reaction conversion by shifting the equilibrium toward product formation. Sulfur poisoning is a significant problem as it deactivates the most commonly used metallic membranes. The relationship of the membrane activity and surface coverage with the surface structure has been recognized in the literature. A theoretical model to simulate hydrogen transport in the presence of sulfur compounds is presented. This model accounts for active site deactivation and permanent structural damage to the membrane. Transport and reaction rate parameters used in the model have been estimated from experimental data. Qualitatively, the model represents well the behavior of inorganic membranes, including partial membrane activity regeneration after the sulfur source is removed.
Collapse
|
16
|
Su Y, Chen P, Wang P, Ge J, Hu S, Zhao Y, Xie G, Liang W, Song P. Pd-loaded SnO2 hierarchical nanospheres for a high dynamic range H2S micro sensor. RSC Adv 2019; 9:5987-5994. [PMID: 35517252 PMCID: PMC9062717 DOI: 10.1039/c8ra09156k] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 02/01/2019] [Indexed: 11/21/2022] Open
Abstract
The sensitivity of Pd-loaded SnO2 nanosphere sensor to H2S gas: micro gas sensors based on Pd-loaded SnO2 nanospheres have credible gas detection abilities down to 10 ppb and 4 orders of magnitude concentration detection ranges.
Collapse
Affiliation(s)
- Yue Su
- School of Physics
- Liaoning University
- Shenyang
- P. R. China
- Beijing National Center for Condensed Matter Physics
| | - Peng Chen
- School of Physics
- Liaoning University
- Shenyang
- P. R. China
- Beijing National Center for Condensed Matter Physics
| | - Pengjian Wang
- Department of Chemistry
- School of Science
- Tianjin Key Laboratory of Molecular Optoelectronic Science
- Tianjin University
- Tianjin
| | - Jing Ge
- Beijing National Center for Condensed Matter Physics
- Beijing Key Laboratory for Nanomaterials and Nanodevices
- Institute of Physics
- Chinese Academy of Sciences
- Beijing
| | - Shi Hu
- Department of Chemistry
- School of Science
- Tianjin Key Laboratory of Molecular Optoelectronic Science
- Tianjin University
- Tianjin
| | - Yuxin Zhao
- State Key Laboratory of Safety and Control for Chemicals
- SINOPEC Research Institute of Safety Engineering
- Qingdao
- P. R. China
| | - Gang Xie
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry & Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Wenjie Liang
- Beijing National Center for Condensed Matter Physics
- Beijing Key Laboratory for Nanomaterials and Nanodevices
- Institute of Physics
- Chinese Academy of Sciences
- Beijing
| | - Peng Song
- School of Physics
- Liaoning University
- Shenyang
- P. R. China
| |
Collapse
|
17
|
Usman T, Tan MQ. H2S adsorption and dissociation on Rh(110) surface: a first-principles study. ADSORPTION 2018. [DOI: 10.1007/s10450-018-9963-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
18
|
|
19
|
Kong W, Zhang X, Mao J, Xu X, Zhang Y, Yang Z. Density functional study on the resistance to sulfur poisoning of Pt x (x = 0, 1, 4 and 8) modified α-Mo 2C(0001) surfaces. Phys Chem Chem Phys 2017; 19:24879-24885. [PMID: 28869275 DOI: 10.1039/c7cp04718e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The tolerance of sulfur poisoning of α-Mo2C(0001) surfaces with different Pt coverages is investigated combining the density functional theory (DFT) results with thermodynamics data using the ab initio atomistic thermodynamic method. It is found that on Mo2C(0001), Pt clusters tend to form two dimensional planar structures instead of aggregating. The clean Mo2C(0001) surface interacts with sulfides very strongly and is susceptible to sulfur poisoning. With increasing the coverage of Pt on the Mo2C surface, the interaction between sulfur and substrate is weakened. The sulfur tolerance ability increases in the order of Mo2C ≈ Pt1/Mo2C < Pt4/Mo2C < Pt8/Mo2C, where the coverage of Pt on the Mo2C plays a very effective role. The results provide theoretical guidance for designing Mo2C based catalysts with high activity and high sulfur resistance.
Collapse
Affiliation(s)
- Weimeng Kong
- College of Physics and Materials Science, Henan Normal University, Xinxiang, 453007, China.
| | | | | | | | | | | |
Collapse
|
20
|
Insight into the properties of stoichiometric, reduced and sulfurized CuO surfaces: Structure sensitivity for H2S adsorption and dissociation. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.05.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
21
|
Rezaei-Sameti M, Zanganeh F. A computational study of adsorption H2S gas on the surface of the pristine, Al&P-doped armchair and zigzag BNNTs. J Sulphur Chem 2017. [DOI: 10.1080/17415993.2017.1313255] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Mahdi Rezaei-Sameti
- Department of Applied Chemistry, Faculty of Science, Malayer University, Malayer, Iran
| | - Fatemeh Zanganeh
- Department of Applied Chemistry, Faculty of Science, Malayer University, Malayer, Iran
| |
Collapse
|
22
|
Chen S, Meng L, Chen B, Chen W, Duan X, Huang X, Zhang B, Fu H, Wan Y. Poison Tolerance to the Selective Hydrogenation of Cinnamaldehyde in Water over an Ordered Mesoporous Carbonaceous Composite Supported Pd Catalyst. ACS Catal 2017. [DOI: 10.1021/acscatal.6b02720] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Shangjun Chen
- Key
Laboratory of Resource Chemistry of Ministry of Education, Shanghai
Key Laboratory of Rare Earth Functional Materials, and Department
of Chemistry, Shanghai Normal University, Shanghai 200234, People’s Republic of China
| | - Li Meng
- Key
Laboratory of Resource Chemistry of Ministry of Education, Shanghai
Key Laboratory of Rare Earth Functional Materials, and Department
of Chemistry, Shanghai Normal University, Shanghai 200234, People’s Republic of China
| | - Bingxu Chen
- State
Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People’s Republic of China
| | - Wenyao Chen
- State
Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People’s Republic of China
| | - Xuezhi Duan
- State
Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People’s Republic of China
| | - Xing Huang
- Department
of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, Faradayweg 4−6, 14195 Berlin, Germany
| | - Bingsen Zhang
- Shenyang
National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, People’s Republic of China
| | - Haibin Fu
- Key
Laboratory of Resource Chemistry of Ministry of Education, Shanghai
Key Laboratory of Rare Earth Functional Materials, and Department
of Chemistry, Shanghai Normal University, Shanghai 200234, People’s Republic of China
| | - Ying Wan
- Key
Laboratory of Resource Chemistry of Ministry of Education, Shanghai
Key Laboratory of Rare Earth Functional Materials, and Department
of Chemistry, Shanghai Normal University, Shanghai 200234, People’s Republic of China
| |
Collapse
|
23
|
Boldrin P, Ruiz-Trejo E, Mermelstein J, Bermúdez Menéndez JM, Ramı Rez Reina T, Brandon NP. Strategies for Carbon and Sulfur Tolerant Solid Oxide Fuel Cell Materials, Incorporating Lessons from Heterogeneous Catalysis. Chem Rev 2016; 116:13633-13684. [PMID: 27933769 DOI: 10.1021/acs.chemrev.6b00284] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Solid oxide fuel cells (SOFCs) are a rapidly emerging energy technology for a low carbon world, providing high efficiency, potential to use carbonaceous fuels, and compatibility with carbon capture and storage. However, current state-of-the-art materials have low tolerance to sulfur, a common contaminant of many fuels, and are vulnerable to deactivation due to carbon deposition when using carbon-containing compounds. In this review, we first study the theoretical basis behind carbon and sulfur poisoning, before examining the strategies toward carbon and sulfur tolerance used so far in the SOFC literature. We then study the more extensive relevant heterogeneous catalysis literature for strategies and materials which could be incorporated into carbon and sulfur tolerant fuel cells.
Collapse
Affiliation(s)
- Paul Boldrin
- Department of Earth Science and Engineering, Imperial College London , London SW7 2AZ, United Kingdom
| | - Enrique Ruiz-Trejo
- Department of Earth Science and Engineering, Imperial College London , London SW7 2AZ, United Kingdom
| | - Joshua Mermelstein
- The Boeing Company , 5301 Bolsa Ave., Huntington Beach, CA 92647, United States
| | | | - Tomás Ramı Rez Reina
- Department of Chemical and Process Engineering, University of Surrey , Guildford GU2 7XH, United Kingdom
| | - Nigel P Brandon
- Department of Earth Science and Engineering, Imperial College London , London SW7 2AZ, United Kingdom
| |
Collapse
|
24
|
Liu Y, Guo W, Lu X, Gao W, Li G, Guo Y, Zhu J, Hao L. Density functional theory study of hydrogenation of S to H2S on Pt–Pd alloy surfaces. RSC Adv 2016. [DOI: 10.1039/c5ra20087c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this work, the adsorption of S-containing species (S, HS, and H2S) and the hydrogenation of S on the Pt–Pd alloy were investigated by using the periodic density functional theory (DFT).
Collapse
Affiliation(s)
- Yunjie Liu
- College of Science
- China University of Petroleum
- Qingdao
- People's Republic of China
| | - Wenyue Guo
- College of Science
- China University of Petroleum
- Qingdao
- People's Republic of China
| | - Xiaoqing Lu
- College of Science
- China University of Petroleum
- Qingdao
- People's Republic of China
| | - Wei Gao
- College of Science
- China University of Petroleum
- Qingdao
- People's Republic of China
| | - Guixia Li
- College of Science
- China University of Petroleum
- Qingdao
- People's Republic of China
| | - Yahui Guo
- College of Science
- China University of Petroleum
- Qingdao
- People's Republic of China
| | - Jun Zhu
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu 610054
- People's Republic of China
| | - Lanzhong Hao
- College of Science
- China University of Petroleum
- Qingdao
- People's Republic of China
| |
Collapse
|
25
|
Liu N, Wang XY, Wan YL. First principle calculations of hydrogen sulfide adsorption and dissociation on pure Pd (111) and Au (111), and alloy Pd/Au (111) and Au/Pd (111) surfaces. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2015. [DOI: 10.1142/s0219633614500655] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The hydrogen sulfide adsorption and dissociation on pure Pd (111) and Au (111), alloy Pd / Au (111) and Au / Pd (111) surfaces have been investigated using the pseudo-potential plane wave method within the generalized-gradient approximation density functional theory (GGA+DFT). The results show that H 2 S tends to be adsorbed on top site, HS prefers to locate on bridge site, and the S and H locate on fcc site on various surfaces. Compared the adsorption of sulfur-containing species and hydrogen on pure and alloy metal surfaces, a similar trend of adsorption energies on the metal surfaces ( Pd / Au (111) > Pd (111) > Au (111) > Au / Pd (111)) is found. In addition, the dissociation process on the Pd (111) and Pd / Au (111) surfaces is predicted to be exothermic. However, on Au (111) and Au / Pd (111), the dissociation process is endothermic. The work reveals that H 2 S dissociation is more likely to happen on Pd / Au (111) surface. Finally, the adsorption energies of adsorbate on metal surfaces have strong correlation with the d-band center. The d-band center moves away from the Fermi level, and the adsorption energy decreases. According to the LDOS analysis, the inner Au atoms of Pd / Au (111) can enhance the top-layer d-band intensity, whereas the inner Pd atoms of Au / Pd (111) cause the opposite effect. The further electronic state analysis reveals the interaction between H 2 S and metal surfaces.
Collapse
Affiliation(s)
- Na Liu
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, P.R. China
| | - Xue-Ye Wang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, P.R. China
| | - Ya-Li Wan
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, P.R. China
| |
Collapse
|
26
|
Sun S, Zhang D, Li C, Wang Y. DFT study on the adsorption and dissociation of H2S on CuO(111) surface. RSC Adv 2015. [DOI: 10.1039/c4ra16549g] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The pathways of the dissociation H2S on the CuO(111) surface are presented in this work.
Collapse
Affiliation(s)
- Shujuan Sun
- School of Chemical Engineering and Technology
- Hebei University of Technology
- Tianjin 300130
- P. R. China
| | - Dongsheng Zhang
- School of Chemical Engineering and Technology
- Hebei University of Technology
- Tianjin 300130
- P. R. China
| | - Chunyu Li
- Science and Technology Innovation Center
- Datang Technologies Industry Group Company Limited
- Beijing 100097
- P. R. China
| | - Yanji Wang
- School of Chemical Engineering and Technology
- Hebei University of Technology
- Tianjin 300130
- P. R. China
| |
Collapse
|
27
|
Lewis AE, Zhao H, Syed H, Wolden CA, Way JD. PdAu and PdAuAg composite membranes for hydrogen separation from synthetic water-gas shift streams containing hydrogen sulfide. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2014.04.022] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
28
|
Ye CC, Sun J, Zhao FQ, Xu SY, Ju XH. DFT Study for Adsorption and Decomposition Mechanism of Trimethylene Oxide on Al(111) Surface. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.7.2013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
29
|
|
30
|
Ye CC, Zhao FQ, Xu SY, Ju XH. Density functional theory studies of methanol adsorption and decomposition mechanism on Al13 clusters. CAN J CHEM 2014. [DOI: 10.1139/cjc-2013-0528] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The adsorption and decomposition of the CH3OH molecule on Al13 clusters were investigated by generalized gradient approximation of the density functional theory. The strong attractive forces between the CH3OH molecule and aluminum atoms induce the breaking of the H–O and C–O bonds of CH3OH. Subsequently, the dissociated CH3O and OH radical fragments oxidize the aluminum clusters. The largest adsorption energy is –205.4 kJ/mol. We also investigated five reaction pathways of the CH3OH molecule on the Al13 clusters. The activation energies are in the range of 10.3−113.1 kJ/mol. Compared with the bond dissociation energies of the C–O and O–H bonds in the isolated methanol, Al13 performs very well in decreasing the bond break barrier of CH3OH. In addition, although the C–O bond is slightly weaker than the O−H bond, the O−H bond is even easier to decompose on the Al13 surface. The rate constants of five adsorption paths over the temperature range 300−700 K are presented.
Collapse
Affiliation(s)
- Cai-Chao Ye
- Key Laboratory of Soft Chemistry and Functional Materials of MOE, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| | - Feng-Qi Zhao
- Laboratory of Science and Technology on Combustion and Explosion, Xi’an Modern Chemistry Research Institute, Xi’an 710065, P.R. China
| | - Si-Yu Xu
- Laboratory of Science and Technology on Combustion and Explosion, Xi’an Modern Chemistry Research Institute, Xi’an 710065, P.R. China
| | - Xue-Hai Ju
- Key Laboratory of Soft Chemistry and Functional Materials of MOE, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| |
Collapse
|
31
|
McCue AJ, Anderson JA. Sulfur as a catalyst promoter or selectivity modifier in heterogeneous catalysis. Catal Sci Technol 2014. [DOI: 10.1039/c3cy00754e] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
32
|
Ye CC, Zhao FQ, Xu SY, Ju XH. Density functional theory studies on adsorption and decomposition mechanism of FOX-7 on Al13 clusters. CAN J CHEM 2013. [DOI: 10.1139/cjc-2013-0334] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The adsorption and decomposition of the FOX-7 molecule on Al13 clusters were investigated by generalized gradient approximation of the density functional theory. The strong attractive forces between the FOX-7 molecule and aluminum atoms induce the N−O bond breaking of FOX-7. Subsequently, the dissociated oxygen atoms and radical fragment of FOX-7 oxidize the aluminum clusters. The largest adsorption energy is −1020.4 kJ/mol. We also investigated three adsorption reaction paths of the FOX-7 molecule on the Al13 clusters in the A configuration. The activation energy for the adsorption steps are 0.2, 11.4, and 10.2 kJ/mol, respectively, and Al13 is more active than the Al(111) surface and the Al13 cluster performs better in decreasing the adsorption barrier of FOX-7 on the aluminum surface as well. The rate constants of three adsorption paths increase as temperature increases over the temperature range 275–500 K.
Collapse
Affiliation(s)
- Cai-Chao Ye
- Key Laboratory of Soft Chemistry and Functional Materials of MOE, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| | - Feng-Qi Zhao
- Science and Technology on Combustion and Explosion Laboratory, Xi’an Modern Chemistry Research Institute, Xi’an 710065, P.R. China
| | - Si-Yu Xu
- Science and Technology on Combustion and Explosion Laboratory, Xi’an Modern Chemistry Research Institute, Xi’an 710065, P.R. China
| | - Xue-Hai Ju
- Key Laboratory of Soft Chemistry and Functional Materials of MOE, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| |
Collapse
|
33
|
A DFT study of adsorption and decomposition of hexahydro-1,3,5-trinitro-1,3,5-triazine on Mg(0001) surface. J Mol Model 2013; 19:4459-65. [DOI: 10.1007/s00894-013-1942-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2013] [Accepted: 07/09/2013] [Indexed: 11/25/2022]
|
34
|
Ye CC, Zhao FQ, Xu SY, Ju XH. Adsorption and decomposition mechanism of hexogen (RDX) on Al(111) surface by periodic DFT calculations. J Mol Model 2013; 19:2451-8. [PMID: 23435519 DOI: 10.1007/s00894-013-1796-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2012] [Accepted: 02/05/2013] [Indexed: 11/26/2022]
Affiliation(s)
- Cai-Chao Ye
- Key Laboratory of Soft Chemistry and Functional Materials of MOE, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | | | | | | |
Collapse
|
35
|
Patton JF, Lavrik NV, Joy DC, Hunter SR, Datskos PG, Smith DB, Sepaniak MJ. Characterization of hydrogen responsive nanoporous palladium films synthesized via a spontaneous galvanic displacement reaction. NANOTECHNOLOGY 2012; 23:465403. [PMID: 23092990 DOI: 10.1088/0957-4484/23/46/465403] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A model is presented regarding the mechanistic properties associated with the interaction of hydrogen with nanoporous palladium (np-Pd) films prepared using a spontaneous galvanic displacement reaction (SGDR), which involves PdCl(2) reduction by atomic Ag. Characterization of these films shows both chemical and morphological factors, which influence the performance characteristics of np-Pd microcantilever (MC) nanomechanical sensing devices. Raman spectroscopy, uniquely complemented with MC response profiles, is used to explore the chemical influence of palladium oxide (PdO). These combined techniques support a reaction mechanism that provides for rapid response to H(2) and recovery in the presence of O(2). Post-SGDR processing via reduction of PdCl(2)(s) in a H(2) environment results in a segregated nanoparticle three-dimensional matrix dispersed in a silver layer. The porous nature of the reduced material is shown by high resolution scanning electron microscopy. Extended grain boundaries, typical of these materials, result in a greater surface area conducive to fast sorption/desorption of hydrogen, encouraged by the presence of PdO. X-ray diffraction and inductively coupled plasma-optical emission spectroscopy are employed to study changes in morphology and chemistry occurring in these nanoporous films under different processing conditions. The unique nature of chemical/morphological effects, as demonstrated by the above characterization methods, provides evidence in support of observed nanomechanical response/recovery profiles offering insight for catalysis, H(2) storage and improved sensing applications.
Collapse
Affiliation(s)
- J F Patton
- Department of Chemistry/Department of Biochemistry, Cellular and Molecular Biology, University of Tennessee, Knoxville, TN 37996, USA
| | | | | | | | | | | | | |
Collapse
|
36
|
Ye C, Ju X, Zhao F, Xu S. Adsorption and Decomposition Mechanism of 1,1-Diamino-2,2-dinitroethylene on Al(111) Surface by Periodic DFT Calculations. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201200470] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
37
|
Density functional theory study of sulfur tolerance of copper: New copper–sulfur phase diagram. Chem Phys Lett 2012. [DOI: 10.1016/j.cplett.2012.02.067] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
38
|
McKenna FM, Anderson JA. Selectivity enhancement in acetylene hydrogenation over diphenyl sulphide-modified Pd/TiO2 catalysts. J Catal 2011. [DOI: 10.1016/j.jcat.2011.05.003] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
39
|
Electronic origins for sulfur interactions with palladium alloys for hydrogen-selective membranes. J Memb Sci 2011. [DOI: 10.1016/j.memsci.2011.03.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
40
|
Omole MA, Okello VA, Lee V, Zhou L, Sadik OA, Umbach C, Sammakia B. Catalytic Reduction of Hexavalent Chromium Using Flexible Nanostructured Poly(amic acids). ACS Catal 2011. [DOI: 10.1021/cs100034z] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marcells A. Omole
- Department of Chemistry, Center for Advanced Sensors & Environmental Systems (CASE), State University of New York at Binghamton, P.O. Box 6000, Binghamton, New York 13902, United States
| | - Veronica A. Okello
- Department of Chemistry, Center for Advanced Sensors & Environmental Systems (CASE), State University of New York at Binghamton, P.O. Box 6000, Binghamton, New York 13902, United States
| | - Vincent Lee
- Department of Chemistry, Center for Advanced Sensors & Environmental Systems (CASE), State University of New York at Binghamton, P.O. Box 6000, Binghamton, New York 13902, United States
| | - Lisa Zhou
- Department of Chemistry, Center for Advanced Sensors & Environmental Systems (CASE), State University of New York at Binghamton, P.O. Box 6000, Binghamton, New York 13902, United States
| | - Omowunmi A. Sadik
- Department of Chemistry, Center for Advanced Sensors & Environmental Systems (CASE), State University of New York at Binghamton, P.O. Box 6000, Binghamton, New York 13902, United States
| | - Christopher Umbach
- Department of Materials Science & Engineering, Cornell University, 126 Bard Hall, Ithaca, New York 14853-1501, United States
| | - Bahgat Sammakia
- Department of Mechanical Engineering, Center for Advanced Microelectronics Manufacturing, State University of New York at Binghamton, P.O. Box 6000, Binghamton, New York 13902, United States
| |
Collapse
|
41
|
Ozdogan E, Wilcox J. Investigation of H2 and H2S Adsorption on Niobium- and Copper-Doped Palladium Surfaces. J Phys Chem B 2010; 114:12851-8. [DOI: 10.1021/jp105469c] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ekin Ozdogan
- Department of Energy Resources Engineering, School of Earth Sciences, Stanford University, Green Earth Sciences 065, 367 Panama Street, Stanford, California 94305
| | - Jennifer Wilcox
- Department of Energy Resources Engineering, School of Earth Sciences, Stanford University, Green Earth Sciences 065, 367 Panama Street, Stanford, California 94305
| |
Collapse
|
42
|
Electrocatalytic reduction of 2-chlorobiphenyl in contaminated water using palladium-modified electrode. Sep Purif Technol 2008. [DOI: 10.1016/j.seppur.2008.05.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
43
|
Angeles-Wedler D, Mackenzie K, Kopinke FD. Permanganate oxidation of sulfur compounds to prevent poisoning of Pd catalysts in water treatment processes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2008; 42:5734-5739. [PMID: 18754501 DOI: 10.1021/es800330s] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The practical application of Pd-catalyzed water treatment processes is impeded by catalyst poisoning by reduced sulfur compounds (RSCs). In this study, the potential of permanganate as a selective oxidant for the removal of microbially generated RSCs in water and as a regeneration agent for S-poisoned catalysts was evaluated. Hydrodechlorination using Pd/Al2O3 was carried out as a probe reaction in permanganate-pretreated water. The activity of the Pd catalysts in the successfully pretreated reaction medium was similar to that in deionized water. The catalyst showed no deactivation behavior in the presence of permanganate at a concentration level < or = 0.07 mM. With a residual oxidant concentration of > or = 0.08 mM, a significant but temporary inhibition of the catalytic dechlorination was observed. Unprotected Pd/Al2O3, which had been completely poisoned by sulfide, was reactivated by a combined treatment with permanganate and hydrazine. However, the anthropogenic water pollutants thiophene and carbon disulfide were resistant against permanganate. Together with the preoxidation of catalyst poisons, hydrophobic protection of the catalysts was studied. Pd/zeolite and various hydrophobically coated catalysts showed a higher stability against ionic poisons and permanganate than the uncoated catalyst. By means of a combination of oxidative water pretreatment and hydrophobic catalyst protection, we provide a new tool to harness the potential of Pd-catalyzed hydrodehalogenation for the treatment of real waters.
Collapse
Affiliation(s)
- Dalia Angeles-Wedler
- UFZ-Helmholtz-Centre for Environmental Research, Department of Environmental Technology, Permoserstrasse 15, 04318 Leipzig, Germany
| | | | | |
Collapse
|
44
|
|
45
|
|
46
|
K'Owino IO, Omole MA, Sadik OA. Tuning the surfaces of palladium nanoparticles for the catalytic conversion of Cr(vi) to Cr(iii). ACTA ACUST UNITED AC 2007; 9:657-65. [PMID: 17607385 DOI: 10.1039/b706225g] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work reports the feasibility of using Pd nanoparticles as innovative catalysts in the conversion of reducible contaminants from toxic to benign forms. Cr(VI) is a known carcinogen while the trivalent chromium salts are believed to be non-toxic. The ability of Pd nanoparticles to catalyze the rapid reduction of Cr(VI) to Cr(III) using reactive sulfur intermediates produced in situ was therefore studied. Using a microchamber set at 130 degrees C, the reduction mixture consists of palladium nanoparticles and sulfur (PdNPs/S), which generated highly reducing sulfur intermediates that effected the reduction of Cr(VI) to Cr(III) by 1st order reaction kinetics. UV-visible spectroscopy and cyclic voltammetry were employed to monitor the reduction process. The results showed that 99.8% of 400 microM Cr(VI) was reduced to Cr(III) by PdNPs/S in one hour compared to 2.1% by a control experiment consisting of sulfur only. The rate of Cr(VI) reduction was found to be dependent on temperature and pH and was greatly enhanced by the addition of PdNPs. Subsequent application of this approach in the reduction of Cr(VI) in soil and aqueous media was conducted. In contrast to the control experiments with and without PdNPs or sulfur, greater than 92% conversion rate was obtained in the presence of PdNPs/S within 1 hour. This represents over a 500-fold improvement in conversion rate compared to current microbial approaches. XPS analysis provided the confirmation regarding the oxidation states of Cr(VI), Cr(III) and the nature of the reactive intermediates. This work offers PdNPs/S as a new interface for the reduction of high oxidation state heavy metal pollutants.
Collapse
Affiliation(s)
- Isaac O K'Owino
- Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902, USA
| | | | | |
Collapse
|
47
|
Choi Y, Compson C, Lin M, Liu M. A mechanistic study of H2S decomposition on Ni- and Cu-based anode surfaces in a solid oxide fuel cell. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2006.01.059] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|