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Rivera RLA, Colon-Ruiz YL, De La Torre-Rosa A, Garcia-Ramos AI, Garcia-Sanchez AM, Gierbolini-Ortiz L, Lopez-Torres M, Ortiz-Rodriguez N, Rivera-Rivera VA, Santiago-Soler SC, Siberon-Albertorio JA, Silva-Burgos JN, Torres-Morales C, Santana JA. Selenium Adsorption on the (111), (100), (110) and (211) surfaces of Face-Centered-Cubic Metals: Density Functional Calculations of the Potential Energy Surfaces. ChemistrySelect 2024; 9:e202304290. [PMID: 40309340 PMCID: PMC12040395 DOI: 10.1002/slct.202304290] [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: 10/25/2023] [Accepted: 08/21/2024] [Indexed: 05/02/2025]
Abstract
In this study, we expand the computational investigation of selenium, which has previously been limited to metals such as Cu, Fe, Pd, Au, and Pt. Utilizing density functional theory calculations, we explore the adsorption and diffusion of selenium at a low-coverage regime of 0.25 ML on a broader range of metal surfaces, including Ni, Cu, Rh, Pd, Ag, Ir, Pt, and Au. Our results reveal that selenium exhibits a distinct preference for three-fold or four-fold high-coordination sites on most studied surfaces. We further analyze the minimum energy diffusion pathways, demonstrating that the energy barrier for selenium's surface diffusion varies significantly based on the orientation and nature of the metal surfaces. Specifically, on (100) surfaces, selenium exhibits the highest diffusion energy, ranging from 0.60 eV in Au(100) to 1.12 eV in Pd(100). The diffusion behavior on (110) and (211) surfaces is also elaborated, emphasizing the unique trends observed compared to previously studied elements like sulfur. Importantly, this study is a new reference for future computational analyses, filling existing gaps by providing comprehensive data on selenium adsorption on various face-centered cubic metal surfaces not previously reported.
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Affiliation(s)
| | - Yomari L. Colon-Ruiz
- Department of Chemistry, The University of Puerto Rico at Cayey, P. O. Box 372230, Cayey, PR 00737-2230, USA
| | - Adriana De La Torre-Rosa
- Department of Chemistry, The University of Puerto Rico at Cayey, P. O. Box 372230, Cayey, PR 00737-2230, USA
| | - Andrea I. Garcia-Ramos
- Department of Chemistry, The University of Puerto Rico at Cayey, P. O. Box 372230, Cayey, PR 00737-2230, USA
| | - Alondra M. Garcia-Sanchez
- Department of Chemistry, The University of Puerto Rico at Cayey, P. O. Box 372230, Cayey, PR 00737-2230, USA
| | - Lianellys Gierbolini-Ortiz
- Department of Chemistry, The University of Puerto Rico at Cayey, P. O. Box 372230, Cayey, PR 00737-2230, USA
| | - Marialejandra Lopez-Torres
- Department of Chemistry, The University of Puerto Rico at Cayey, P. O. Box 372230, Cayey, PR 00737-2230, USA
| | - Nasya Ortiz-Rodriguez
- Department of Chemistry, The University of Puerto Rico at Cayey, P. O. Box 372230, Cayey, PR 00737-2230, USA
| | - Vanessa A. Rivera-Rivera
- Department of Chemistry, The University of Puerto Rico at Cayey, P. O. Box 372230, Cayey, PR 00737-2230, USA
| | - Sofia C. Santiago-Soler
- Department of Chemistry, The University of Puerto Rico at Cayey, P. O. Box 372230, Cayey, PR 00737-2230, USA
| | | | - Juliannie N. Silva-Burgos
- Department of Chemistry, The University of Puerto Rico at Cayey, P. O. Box 372230, Cayey, PR 00737-2230, USA
| | - Coralys Torres-Morales
- Department of Chemistry, The University of Puerto Rico at Cayey, P. O. Box 372230, Cayey, PR 00737-2230, USA
| | - Juan A. Santana
- Department of Chemistry, The University of Puerto Rico at Cayey, P. O. Box 372230, Cayey, PR 00737-2230, USA
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Dong Y, Zhang Z, Yan W, Hu X, Zhan C, Xu Y, Huang X. Pb-Modified Ultrathin RuCu Nanoflowers for Active, Stable, and CO-resistant Alkaline Electrocatalytic Hydrogen Oxidation. Angew Chem Int Ed Engl 2023; 62:e202311722. [PMID: 37702370 DOI: 10.1002/anie.202311722] [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: 08/11/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 09/14/2023]
Abstract
CO poisoning of Pt group metal (PGM) catalysts is a chronic problem for hydrogen oxidation reaction (HOR), the anodic reaction of hydroxide exchange membrane fuel cell (HEMFC) for converting H2 to electric energy in sustainable manner. We demonstrate here an ultrathin Ru-based nanoflower modified with Pb (PbRuCu NF) as an active, stable, and CO-resistant catalyst for alkaline HOR. Mechanism studies show that the presence of Pb can weaken the adsorption of *H, strengthen *OH adsorption to facilitate CO oxidation, as a result of significantly enhanced HOR activity and improved CO tolerance. Furthermore, in situ electrochemical attenuated total reflection surface-enhanced infrared absorption spectroscopy (ATR-SEIRAS) suggests that Pb acts as oxygen-rich site to regulate the behavior of the linear CO adsorption. The optimized Pb1.04 -Ru92 Cu8 /C displays a mass activity and specific activity of 1.10 A mgRu -1 and 5.55 mA cm-2 , which are ≈10 and ≈31 times higher than those of commercial Pt/C. This work provides a facile strategy for the design of Ru-based catalyst with high activity and strong CO-resistance for alkaline HOR, which may promote the fundamental researches on the rational design of functional catalysts.
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Affiliation(s)
- Yuanting Dong
- Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices, Collaborative Innovation Center of Advanced Energy Materials, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, Guangdong, China
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Zhiming Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Wei Yan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Xinrui Hu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Changhong Zhan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Yong Xu
- Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices, Collaborative Innovation Center of Advanced Energy Materials, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, Guangdong, China
| | - Xiaoqing Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
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Wu X, Jiang Y, Yan Y, Li X, Luo S, Huang J, Li J, Shen R, Yang D, Zhang H. Tuning Surface Structure of Pd 3Pb/Pt n Pb Nanocrystals for Boosting the Methanol Oxidation Reaction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1902249. [PMID: 31871873 PMCID: PMC6918111 DOI: 10.1002/advs.201902249] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/29/2019] [Indexed: 05/15/2023]
Abstract
Developing an efficient Pt-based electrocatalyst with well-defined structures for the methanol oxidation reaction (MOR) is critical, however, still remains a challenge. Here, a one-pot approach is reported for the synthesis of Pd3Pb/Pt n Pb nanocubes with tunable Pt composition varying from 3.50 to 2.37 and 2.07, serving as electrocatalysts toward MOR. Their MOR activities increase in a sequence of Pd3Pb/Pt3.50Pb << Pd3Pb/Pt2.07Pb < Pd3Pb/Pt2.37Pb, which are substantially higher than that of commercial Pt/C. Specifically, Pd3Pb/Pt2.37Pb electrocatalysts achieve the highest specific (13.68 mA cm-2) and mass (8.40 A mgPt -1) activities, which are ≈8.8 and 6.8 times higher than those of commercial Pt/C, respectively. Structure characterizations show that Pd3Pb/Pt2.37Pb and Pd3Pb/Pt2.07Pb are dominated by hexagonal-structured PtPb intermetallic phase on the surface, while the surface of Pd3Pb/Pt3.50Pb is mainly composed of face-centered cubic (fcc)-structured Pt x Pb phase. As such, hexagonal-structured PtPb phase is much more active than the fcc-structured Pt x Pb one toward MOR. This demonstration is supported by density functional theory calculations, where the hexagonal-structured PtPb phase shows the lowest adsorption energy of CO. The decrease in CO adsorption energy and structural stability also endows Pd3Pb/Pt n Pb electrocatalysts with superior durability relative to commercial Pt/C.
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Affiliation(s)
- Xingqiao Wu
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Yi Jiang
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Yucong Yan
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Xiao Li
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Sai Luo
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Jingbo Huang
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Junjie Li
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Rong Shen
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Deren Yang
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Hui Zhang
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
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