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Mohammad AM, Al-Qodami BA, Al-Akraa IM, Allam NK, Alalawy HH. A hybrid FeOx/CoOx/Pt ternary nanocatalyst for augmented catalysis of formic acid electro-oxidation. Sci Rep 2024; 14:18048. [PMID: 39103413 DOI: 10.1038/s41598-024-67834-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Accepted: 07/16/2024] [Indexed: 08/07/2024] Open
Abstract
Platinum-based catalysts that have long been used as the anodes for the formic acid electro-oxidation (FAO) in the direct formic acid fuel cells (DFAFCs) were susceptible to retrogradation in performance due to CO poisoning that impaired the technology transfer in industry. This work is designed to overcome this challenge by amending the Pt surface sequentially with nanosized cobalt (nano-CoOx, fibril texture of ca. 200 nm in particle size) and iron (nano-FeOx, nanorods of particle size and length of 80 and 253 nm, respectively) oxides. This enriched the Pt surface with oxygenated groups that boosted FAO and mitigated the CO poisoning. The unfilled d-orbitals of the transition metals and their tendency to vary their oxidations states presumed their participation in a faster mechanism of FAO. Engineering the Pt surface in this FeOx/CoOx/Pt hierarchy resulted in a remarkable activity toward FAO, that exceeded four times that of the Pt catalyst with up to ca. 2.5 times improvement in the catalytic tolerance against CO poisoning. This associated a ca. - 32 mV shift in the onset potential of FAO which increased to - 40 mV with a post-activation of the same catalyst at - 0.5 in 0.2 mol L-1 NaOH, displaying the catalyst's competitiveness in reducing overpotentials in DFAFCs. It also exhibited a favorable amelioration in the catalytic durability in long-termed chronoamperometric electrolysis. The electrochemical impedance spectroscopy and the CO stripping voltammetry were employed to elucidate the origin of enhancement.
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Affiliation(s)
- Ahmad M Mohammad
- Chemistry Department, Faculty of Science, Cairo University, Cairo, 12613, Egypt.
| | - Bilquis Ali Al-Qodami
- Chemistry Department, Faculty of Science, Cairo University, Cairo, 12613, Egypt
- Chemistry Department, Faculty of Education and Applied Science, Hajjah University, Hajjah, Yemen
| | - Islam M Al-Akraa
- Department of Chemical Engineering, Faculty of Engineering, The British University in Egypt, Cairo, 11837, Egypt
| | - Nageh K Allam
- Energy Materials Laboratory, School of Sciences and Engineering, The American University in Cairo, New Cairo, 11835, Egypt
| | - Hafsa H Alalawy
- Chemistry Department, Faculty of Science, Cairo University, Cairo, 12613, Egypt.
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2
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Hossain SS, Ahmad Alwi MM, Saleem J, Al-Odail F, Basu A, Mozahar Hossain M. Recent Advances in Anode Electrocatalysts for Direct Formic Acid Fuel Cell-II-Platinum-Based Catalysts. CHEM REC 2022; 22:e202200156. [PMID: 36073789 DOI: 10.1002/tcr.202200156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 08/19/2022] [Indexed: 12/14/2022]
Abstract
Platinum-based catalysts have a long history of application in formic acid oxidation (FAO). The single metal Pt is active in FAO but expensive, scarce, and rapidly deactivates. Understanding the mechanism of FAO over Pt important for the rational design of catalysts. Pt nanomaterials rapidly deactivate because of the CO poisoning of Pt active sites via the dehydration pathway. Alloying with another transition metal improves the performance of Pt-based catalysts through bifunctional, ensemble, and steric effects. Supporting Pt catalysts on a high-surface-area support material is another technique to improve their overall catalytic activity. This review summarizes recent findings on the mechanism of FAO over Pt and Pt-based alloy catalysts. It also summarizes and analyzes binary and ternary Pt-based catalysts to understand their catalytic activity and structure relationship.
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Affiliation(s)
- Sk Safdar Hossain
- Department of Chemical Engineering, College of Engineering, King Faisal University, Al-Ahsa, 31982, Kingdom of Saudi Arabia
| | - Muhammad Mudassir Ahmad Alwi
- Department of Materials Engineering, College of Engineering, King Faisal University, Al-Ahsa, 31982, Kingdom of Saudi Arabia
| | - Junaid Saleem
- Division of Sustainable Development, College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Faisal Al-Odail
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, 31982, Kingdom of Saudi Arabia
| | - Avijit Basu
- Department of Chemical Engineering, College of Engineering, King Faisal University, Al-Ahsa, 31982, Kingdom of Saudi Arabia
| | - Mohammad Mozahar Hossain
- Department of Chemical Engineering, College of Engineering, King Fahd University of Petroleum & Minerals, Dhahran, 31612, Kingdom of Saudi Arabia
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3
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Pentyala P, Deshpande PA. Insights into Pathway Selectivity during Anodic Formic Acid Oxidation over La 1–xSr xCoO 3. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Phanikumar Pentyala
- Quantum and Molecular Engineering Laboratory, Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Parag A. Deshpande
- Quantum and Molecular Engineering Laboratory, Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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4
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Pushpalatha N, Abraham EV, Saravanan G. Pt–Cu nanoalloy catalysts: compositional dependence and selectivity for direct electrochemical oxidation of formic acid. NEW J CHEM 2022. [DOI: 10.1039/d2nj01871c] [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
A PtCu3 nanoalloy catalyst showed much enhanced catalytic activity for the direct electrochemical oxidation of formic acid compared to a commercial platinum catalyst.
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Affiliation(s)
- Nataraj Pushpalatha
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), CSIR, Madras Complex, Taramani, Chennai, 600 113, India
| | - Elezabeth V. Abraham
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), CSIR, Madras Complex, Taramani, Chennai, 600 113, India
| | - Govindachetty Saravanan
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), CSIR, Madras Complex, Taramani, Chennai, 600 113, India
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5
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Al-Qodami BA, Alalawy HH, Sayed SY, Al-Akraa IM, Allam NK, Mohammad AM. Tailor-designed nanowire-structured iron and nickel oxides on platinum catalyst for formic acid electro-oxidation. RSC Adv 2022; 12:20395-20402. [PMID: 35919593 PMCID: PMC9277714 DOI: 10.1039/d2ra03386k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 06/15/2022] [Indexed: 11/22/2022] Open
Abstract
This investigation is concerned with designing efficient catalysts for direct formic acid fuel cells. A ternary catalyst containing iron (nano-FeOx) and nickel (nano-NiOx) nanowire oxides assembled sequentially onto a bare platinum (bare-Pt) substrate was recommended for the formic acid electro-oxidation reaction (FAOR). While nano-NiOx appeared as fibrillar nanowire bundles (ca. 82 nm and 4.2 μm average diameter and length, respectively), nano-FeOx was deposited as intersecting nanowires (ca. 74 nm and 400 nm average diameter and length, respectively). The electrocatalytic activity of the catalyst toward the FAOR depended on its composition and loading sequence. The FeOx/NiOx/Pt catalyst exhibited ca. 4.8 and 1.6 times increases in the catalytic activity and tolerance against CO poisoning, respectively, during the FAOR, relative to the bare-Pt catalyst. Interestingly, with a simple activation of the FeOx/NiOx/Pt catalyst at −0.5 V vs. Ag/AgCl/KCl (sat.) in 0.2 mol L−1 NaOH, a favorable Fe2+/Fe3+ transformation succeeded in mitigating the permanent CO poisoning of the Pt-based catalysts. Interestingly, this activated a-FeOx/NiOx/Pt catalyst had an activity 7 times higher than that of bare-Pt with an ca. −122 mV shift in the onset potential of the FAOR. The presence of nano-FeOx and nano-NiOx enriched the catalyst surface with extra oxygen moieties that counteracted the CO poisoning of the Pt substrate and electronically facilitated the kinetics of the FAOR, as revealed from CO stripping and impedance spectra. A FeOx/NiOx/Pt catalyst was recommended for formic acid electro-oxidation; the essential anodic reaction in direct formic acid fuel cells.![]()
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Affiliation(s)
- Bilquis Ali Al-Qodami
- Chemistry Department, Faculty of Science, Cairo University, Cairo 12613, Egypt
- Chemistry Department, Faculty of Education and Applied Science, Hajjah University, Yemen
| | - Hafsa H. Alalawy
- Chemistry Department, Faculty of Science, Cairo University, Cairo 12613, Egypt
| | - Sayed Youssef Sayed
- Chemistry Department, Faculty of Science, Cairo University, Cairo 12613, Egypt
| | - Islam M. Al-Akraa
- Department of Chemical Engineering, Faculty of Engineering, The British University in Egypt, Cairo 11837, Egypt
| | - Nageh K. Allam
- Energy Materials Laboratory, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
| | - Ahmad M. Mohammad
- Chemistry Department, Faculty of Science, Cairo University, Cairo 12613, Egypt
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Kim H, Yoo TY, Bootharaju MS, Kim JH, Chung DY, Hyeon T. Noble Metal-Based Multimetallic Nanoparticles for Electrocatalytic Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104054. [PMID: 34791823 PMCID: PMC8728832 DOI: 10.1002/advs.202104054] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/13/2021] [Indexed: 05/08/2023]
Abstract
Noble metal-based multimetallic nanoparticles (NMMNs) have attracted great attention for their multifunctional and synergistic effects, which offer numerous catalytic applications. Combined experimental and theoretical studies have enabled formulation of various design principles for tuning the electrocatalytic performance through controlling size, composition, morphology, and crystal structure of the nanoparticles. Despite significant advancements in the field, the chemical synthesis of NMMNs with ideal characteristics for catalysis, including high activity, stability, product-selectivity, and scalability is still challenging. This review provides an overview on structure-based classification and the general synthesis of NMMN electrocatalysts. Furthermore, postsynthetic treatments, such as the removal of surfactants to optimize the activity, and utilization of NMMNs onto suitable support for practical electrocatalytic applications are highlighted. In the end, future direction and challenges associated with the electrocatalysis of NMMNs are covered.
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Affiliation(s)
- Hyunjoong Kim
- Center for Nanoparticle ResearchInstitute for Basic Science (IBS)Seoul08826Republic of Korea
- School of Chemical and Biological Engineeringand Institute of Chemical ProcessesSeoul National UniversitySeoul08826Republic of Korea
| | - Tae Yong Yoo
- Center for Nanoparticle ResearchInstitute for Basic Science (IBS)Seoul08826Republic of Korea
- School of Chemical and Biological Engineeringand Institute of Chemical ProcessesSeoul National UniversitySeoul08826Republic of Korea
| | - Megalamane S. Bootharaju
- Center for Nanoparticle ResearchInstitute for Basic Science (IBS)Seoul08826Republic of Korea
- School of Chemical and Biological Engineeringand Institute of Chemical ProcessesSeoul National UniversitySeoul08826Republic of Korea
| | - Jeong Hyun Kim
- Center for Nanoparticle ResearchInstitute for Basic Science (IBS)Seoul08826Republic of Korea
- School of Chemical and Biological Engineeringand Institute of Chemical ProcessesSeoul National UniversitySeoul08826Republic of Korea
| | - Dong Young Chung
- Department of ChemistryGwangju Institute of Science and Technology (GIST)Gwangju61005Republic of Korea
| | - Taeghwan Hyeon
- Center for Nanoparticle ResearchInstitute for Basic Science (IBS)Seoul08826Republic of Korea
- School of Chemical and Biological Engineeringand Institute of Chemical ProcessesSeoul National UniversitySeoul08826Republic of Korea
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Hsieh CT, Kao CP, Gandomi YA, Juang RS, Chang JK, Zhang RS. Oxygen reduction reactions from boron-doped graphene quantum dot catalyst electrodes in acidic and alkaline electrolytes. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2021.104196] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Milica Spasojević, Ribić-Zelenović L, Spasojević M, Marković D. Methanol Electrooxidation on Pt/RuO2 Catalyst. RUSS J ELECTROCHEM+ 2021. [DOI: 10.1134/s1023193520120253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Affiliation(s)
- Linfang Lu
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Shihui Zou
- Key Lab of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Baizeng Fang
- Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada
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10
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Wang J, Wang X, Qiu L, Wang H, Duan L, Kang Z, Liu J. Photocatalytic selective H 2release from formic acid enabled by CO 2captured carbon nitride. NANOTECHNOLOGY 2021; 32:275404. [PMID: 33690178 DOI: 10.1088/1361-6528/abed06] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 03/09/2021] [Indexed: 06/12/2023]
Abstract
The selective decomposition of formic acid (FA) traditionally needs to be carried out under high temperature with the noble metal-based catalysts. Meanwhile, it also encounters a separation of H2and CO2for pure H2production. The photocatalytic FA dehydrogenation under mild conditions can meet a growing demand for sustainable H2generation. Here, we reported a photocatalytic selective H2release from FA decomposition at low temperature for pure H2production by Pt/g-C3N4. Low-cost and easy-to-obtained urea was utilized to produce carbon nitride as the metal-free semiconductor photocatalyst, along with a photodeposition to obtain Pt/g-C3N4. The electrochemical evidences clearly demonstrate the photocatalytic activity of Pt/g-C3N4to produce H2and CO2in one-step FA decomposition. And, the impedance is the lowest under simulated solar light of 70 mW cm-2with a faster electron transfer kinetic. Under simulated solar light, H2production rate is up to 1.59 mmol · h-1· g-1for FA with concentration at 2.65 mol l-1, 1700 000 times larger than that under visible light and 1928 times under ultraviolet (UV) light. DFT calculations further elucidate that nitrogen (N) active site at the g-C3N4has an excellent adsorption towards CO2molecule capture. Then, H2molecules are selectively released to simultaneously separate H2and CO2in solution. Platinum (Pt) at Pt/g-C3N4as the catalytic site contributes into the acceleration of H2production.
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Affiliation(s)
- Jinghui Wang
- Inner Mongolia Key Lab of Carbon Nanomaterials, Nano Innovation Institute (NII), College of Chemistry and Chemical Engineering, Inner Mongolia University for Nationalities (IMUN), Tongliao 028000, People's Republic of China
| | - Xia Wang
- Inner Mongolia Key Lab of Carbon Nanomaterials, Nano Innovation Institute (NII), College of Chemistry and Chemical Engineering, Inner Mongolia University for Nationalities (IMUN), Tongliao 028000, People's Republic of China
| | - Lixin Qiu
- Inner Mongolia Key Lab of Carbon Nanomaterials, Nano Innovation Institute (NII), College of Chemistry and Chemical Engineering, Inner Mongolia University for Nationalities (IMUN), Tongliao 028000, People's Republic of China
| | - Honggang Wang
- Inner Mongolia Key Lab of Carbon Nanomaterials, Nano Innovation Institute (NII), College of Chemistry and Chemical Engineering, Inner Mongolia University for Nationalities (IMUN), Tongliao 028000, People's Republic of China
| | - Limei Duan
- Inner Mongolia Key Lab of Carbon Nanomaterials, Nano Innovation Institute (NII), College of Chemistry and Chemical Engineering, Inner Mongolia University for Nationalities (IMUN), Tongliao 028000, People's Republic of China
| | - Zhenhui Kang
- Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou 215123, People's Republic of China
| | - Jinghai Liu
- Inner Mongolia Key Lab of Carbon Nanomaterials, Nano Innovation Institute (NII), College of Chemistry and Chemical Engineering, Inner Mongolia University for Nationalities (IMUN), Tongliao 028000, People's Republic of China
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11
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Khan IA, Badshah A, Shah FU, Assiri MA, Nadeem MA. Zinc-Coordination Polymer-Derived Porous Carbon-Supported Stable PtM Electrocatalysts for Methanol Oxidation Reaction. ACS OMEGA 2021; 6:6780-6790. [PMID: 33748591 PMCID: PMC7970476 DOI: 10.1021/acsomega.0c05843] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 02/18/2021] [Indexed: 06/12/2023]
Abstract
Porous carbon (PC) is obtained by carbonizing a zinc-coordination polymer (MOF-5) at 950 °C and PtM (M = Fe, Co, Ni, Cu, Zn) nanoparticles (NPs), which are deposited on PC using the polyol method. Structural and morphological characterizations of the synthesized materials are carried out by powder X-ray diffraction (PXRD), X-ray photoelectron spectroscopy (XPS), and high-resolution transmission electron microscopy (HRTEM), and the porosity was determined using a N2 adsorption/desorption technique. The results revealed that PtM NPs are alloyed in the fcc phase and are well dispersed on the surface of PC. The electrochemical results show that PtM/PC 950 catalysts have higher methanol oxidation reaction (MOR) performances than commercial Pt/C (20%) catalysts. After 3000 s of chronoamperometry (CA) test, the MOR performances decreased in the order of Pt1Cu1/PC 950 > Pt1Ni1/PC 950 > Pt1Fe1/PC 950 > Pt1Zn1/PC 950 > Pt1Co1/PC 950. The high MOR activities of the synthesized catalysts are attributed to the effect of M on methanol dissociative chemisorption and improved tolerance of Pt against CO poisoning. The high specific surface area and porosity of the carbon support have an additional effect in boosting the MOR activities. Screening of the first row transition metals (d 5+n , n = 1, 2, 3, 4, 5) alloyed with Pt binary catalysts for MOR shows that Pt with d 8 (Ni) and d 9 (Cu) transition metals, in equivalent atomic ratios, are good anode catalysts for alcohol fuel cells.
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Affiliation(s)
- Inayat Ali Khan
- Catalysis
and Nanomaterials Lab 27, Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
- Chemistry
of Interfaces, Luleå University of
Technology, SE-97187 Luleå, Sweden
| | - Amin Badshah
- Catalysis
and Nanomaterials Lab 27, Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Faiz Ullah Shah
- Chemistry
of Interfaces, Luleå University of
Technology, SE-97187 Luleå, Sweden
| | - Mohammed A. Assiri
- Department
of Chemistry, Faculty of Science, King Khalid
University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Muhammad Arif Nadeem
- Catalysis
and Nanomaterials Lab 27, Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
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12
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Abstract
Electrooxidation of methanol, ethanol, and formic acid was studied on three platinum-containing electrocatalysts: PtCu/C, Pt/(SnO2/C), and Pt/C, Pt content being about 20 wt%. In all reactions, the integral specific activity of the catalysts, estimated from the results of cyclic voltammetry, grows in the Pt/C < Pt/(SnO2/C) < PtCu/C row. The influence of the reagent nature subjected to electrooxidation is manifested both in the difference of the absolute rate values of the corresponding reactions, decreasing in the order CH3OH > HCOOH > C2H5OH, and in the different ratio of these rates on different catalysts and at different potentials. Pt/(SnO2/C) catalyst containing SnO2 nanoparticles is the most active among the studied catalysts in methanol and formic acid electrooxidation reactions under potentiostatic conditions at the E = 0.60 V. Moreover, in formic acid electrooxidation reaction it is significantly superior to even the PtRu/C commercial catalyst. The reasons for the positive influence of Cu atoms and SnO2 nanoparticles on the catalytic activity of platinum are presumably associated with different effects: Interaction of the d-orbitals of copper and platinum atoms in bimetallic nanoparticles and implementation of the bifunctional catalysis mechanism on the adjacent platinum and tin dioxide nanoparticles.
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13
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Fang Z, Chen W. Recent advances in formic acid electro-oxidation: from the fundamental mechanism to electrocatalysts. NANOSCALE ADVANCES 2021; 3:94-105. [PMID: 36131880 PMCID: PMC9419285 DOI: 10.1039/d0na00803f] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 11/09/2020] [Indexed: 05/29/2023]
Abstract
Direct formic acid fuel cells have attracted significant attention because of their low fuel crossover, high safety, and high theoretical power density among all the proton-exchange membrane fuel cells. Much effort has been devoted to the study of formic acid oxidation, including the reaction processes and electrocatalysts. However, as a model reaction, the anodic electro-oxidation process of formic acid is still not very clear, especially regarding the confirmation of the intermediates, which is not helpful for the design and synthesis of high-performance electrocatalysts for formic acid oxidation or conducive to understanding the reaction mechanisms of other small fuel molecules. Herein, we briefly review the recent advances in investigating the mechanism of formic acid electro-oxidation and the basic design concepts of formic acid oxidation electrocatalysts. Rather than an exhaustive overview of all aspects of this topic, this mini-review mainly outlines the progress of this field in recent years.
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Affiliation(s)
- Zhongying Fang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 Jilin China
- University of Science and Technology of China Hefei 230029 Anhui China
| | - Wei Chen
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 Jilin China
- University of Science and Technology of China Hefei 230029 Anhui China
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14
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Zhang J, Shen L, Jiang Y, Sun S. Random alloy and intermetallic nanocatalysts in fuel cell reactions. NANOSCALE 2020; 12:19557-19581. [PMID: 32986070 DOI: 10.1039/d0nr05475e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Fuel cells that use small organic molecules or hydrogen as the anode fuel can power clean electric vehicles. From an experimental perspective, the possible fuel cells' electrocatalytic reaction mechanisms are obtained through in situ electrochemical spectroscopy techniques and density functional theory calculations, providing theoretical guidance for further development of novel nanocatalysts. As advanced nanocatalysts for fuel cells' electrochemical reactions, alloy nanomaterials have greatly improved electrocatalytic activity and stability and have attracted widespread attention. Enhanced electrocatalytic performance of alloy nanocatalysts could be closely related to the synergistic effects, such as electronic and strain effects. Depending on the arrangement of atoms, alloys can be classified into random alloy and intermetallic compounds (ordered structure). Intermetallic compounds generally have lower heats of formation and stronger heteroatomic bonding strength relative to the random alloy, resulting in high chemical and structural stability in either full pH solutions or electrochemical tests. Here, we summarize the latest advances and the structure-function relationship of noble metal alloy nanocatalysts, among which Pt-based catalysts are the main ones, as well as comprehensively understand why they significantly affect the electrocatalytic performance of fuel cells. Novel alloy nanocatalysts with a robust three-phase interface to achieve efficient charge and mass transfer can obtain desirable activity and stability in the electrochemical workstation tests, and is expected to acquire a higher power density on fuel cell test systems with harsh test conditions.
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Affiliation(s)
- Junming Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China.
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15
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Zhang J, She Y. Decomposition mechanism of HCOOH on Pt/WC(0001) surfaces: a density functional theory study. MOLECULAR SIMULATION 2020. [DOI: 10.1080/08927022.2019.1663845] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Jinhua Zhang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, People’s Republic of China
- School of Materials and Environmental Engineering, Chizhou University, Chizhou, People’s Republic of China
| | - Yuanbin She
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, People’s Republic of China
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16
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Shan J, Zeng T, Wu W, Tan Y, Cheng N, Mu S. Enhancement of the performance of Pd nanoclusters confined within ultrathin silica layers for formic acid oxidation. NANOSCALE 2020; 12:12891-12897. [PMID: 32520062 DOI: 10.1039/d0nr00307g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The optimized design of highly active and stable anode electrocatalysts is essential for high performance direct formic acid fuel cells (DFAFCs). Herein, a facile and cost-effective strategy was proposed to fabricate a robust ultrasmall Pd nanocluster confined within ultrathin protective silica layers anchored on nitrogen doped reduced GO (NrGO) through generating amine functionalized graphene oxide with 3-aminopropyl triethoxysilane (APTES), followed by tuning the thickness of protective silica layers by precisely controlling the amount of tetraethylorthosilicate (TEOS). Amine functionalized graphene oxide generated by using APTES favors the formation of ultrasmall Pd nanoclusters due to the coordination of amine to PdCl24- while the confinement effect of ultrathin protective silica layers stabilizes ultrasmall Pd nanoclusters and impedes the agglomeration and sintering of ultrasmall Pd nanoclusters during electrocatalysis. As a result, the ultrasmall Pd nanoclusters (∼1.4 nm) confined in silica layers on NrGO (Pd/NrGO@SiO2) demonstrate a very high forward peak current density for formic acid oxidation (FAO) of 2.37 A mg-1, outperforming the Pd/C catalyst (0.30 A mg-1) and the Pd/rGO catalyst obtained by a conventional method (0.42 A mg-1). More importantly, our confined Pd catalysts show the highest stability of only 5% inconspicuous degradation of the initial mass activity after 1000 cycles, compared with Pd/C (almost 100% loss), Pd/rGO (61.5% loss) and Pd/NrGO (73.2% loss). These strategies in this work provide a new prospect for the design of excellent noble catalysts to overcome the challenges in the practical application of DFAFCs.
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Affiliation(s)
- Jiefei Shan
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
| | - Tang Zeng
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
| | - Wei Wu
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
| | - Yangyang Tan
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
| | - Niancai Cheng
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
| | - Shichun Mu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.
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Al-Shankiti B, Al-Maksoud W, Habeeb Muhammed MA, Anjum DH, Moosa B, Basset JM, Khashab NM. Ligand-free gold nanoclusters confined in mesoporous silica nanoparticles for styrene epoxidation. NANOSCALE ADVANCES 2020; 2:1437-1442. [PMID: 36132309 PMCID: PMC9417287 DOI: 10.1039/c9na00781d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 03/17/2020] [Indexed: 05/24/2023]
Abstract
We present a novel approach to produce gold nanoclusters (Au NCs) in the pores of mesoporous silica nanoparticles (MSNs) by sequential and controlled addition of metal ions and reducing agents. This impregnation technique was followed to confine Au NCs inside the pores of MSNs without adding external ligands or stabilizing agents. TEM images show a uniform distribution of monodisperse NCs with an average size of 1.37 ± 0.4 nm. Since the NCs are grown in situ in MSN pores, additional support and high temperature calcination are not required to use them as catalysts. The use of Au NC/MSNs as a catalyst for the epoxidation of styrene in the presence of tert-butyl hydroperoxide (TBHP) as a terminal oxidant resulted in an 88% conversion of styrene in 12 h with a 74% selectivity towards styrene epoxide. Our observations suggest that this remarkable catalytic performance is due to the small size of Au NCs and the strong interaction between gold and the MSNs. This catalytic conversion is environmentally friendly as it is solvent free. We believe our synthetic approach can be extended to other metal NCs offering a wide range of applications.
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Affiliation(s)
- Buthainah Al-Shankiti
- Smart Hybrid Materials Laboratory (SHMs), Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Walid Al-Maksoud
- Division of Physical Sciences and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST) 4700 KAUST Thuwal 23955-6900 Saudi Arabia
| | - Madathumpady Abubaker Habeeb Muhammed
- Smart Hybrid Materials Laboratory (SHMs), Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Dalaver H Anjum
- Advanced Nanofabrication Imaging and Characterization Core Lab, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Basem Moosa
- Smart Hybrid Materials Laboratory (SHMs), Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Jean-Marie Basset
- Division of Physical Sciences and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST) 4700 KAUST Thuwal 23955-6900 Saudi Arabia
| | - Niveen M Khashab
- Smart Hybrid Materials Laboratory (SHMs), Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
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18
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Zhang Y, Qiao M, Huang Y, Zou Y, Liu Z, Tao L, Li Y, Dong CL, Wang S. In Situ Exfoliation and Pt Deposition of Antimonene for Formic Acid Oxidation via a Predominant Dehydrogenation Pathway. RESEARCH 2020; 2020:5487237. [PMID: 32266330 PMCID: PMC7054718 DOI: 10.34133/2020/5487237] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 11/20/2019] [Indexed: 11/24/2022]
Abstract
Direct formic acid fuel cell (DFAFC) has been considered as a promising energy conversion device for stationary and mobile applications. Advanced platinum (Pt) electrocatalysts for formic acid oxidation reaction (FAOR) are critical for DFAFC. However, the oxidation of formic acid on Pt catalysts often occurs via a dual pathway mechanism, which hinders the catalytic activity owing to the CO poisoning. Herein, we directly exfoliate bulk antimony to 2D antimonene (Sb) and in situ load Pt nanoparticles onto antimonene sheets with the assistance of ethylenediamine. According to the Bader charge analysis, the charge transfer from antimonene to Pt occurs, confirming the electronic interaction between Pt and Sb. Interestingly, antimonene, as a cocatalyst, alters the oxidation pathway for FAOR over Pt catalyst and makes FAOR follow the more efficient dehydrogenation pathway. The density functional theory (DFT) calculation demonstrates that antimonene can activate Pt to be a lower oxidative state and facilitate the oxidation of HCOOH into CO2 via a direct pathway, resulting in a weakened intermediate binding strength and better CO tolerance for FAOR. The specific activity of FAOR on Pt/Sb is 4.5 times, and the mass activity is 2.6 times higher than the conventional Pt/C.
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Affiliation(s)
- Yiqiong Zhang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Man Qiao
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, China
| | - Yucheng Huang
- Department of Physics, Tamkang University, Tamsui 25137, Taiwan
| | - Yuqin Zou
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Zhijuan Liu
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Li Tao
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Yafei Li
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, China
| | - Chung-Li Dong
- Department of Physics, Tamkang University, Tamsui 25137, Taiwan
| | - Shuangyin Wang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
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19
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Fabrication of polyaniline/SBA-15-supported platinum/cobalt nanocomposites as promising electrocatalyst for formic acid oxidation. J APPL ELECTROCHEM 2020. [DOI: 10.1007/s10800-020-01400-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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20
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Miroslav Spasojević, Ribić-Zelenović L, Spasojević M, Trišović T. The Mixture of Nanoparticles of RuO2 and Pt Supported on Ti as an Efficient Catalyst for Direct Formic Acid Fuel Cell. RUSS J ELECTROCHEM+ 2020. [DOI: 10.1134/s1023193519120164] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Im H, Noh S, Shim JH. Spontaneous formation of core-shell silver-copper oxide by carbon dot-mediated reduction for enhanced oxygen electrocatalysis. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135172] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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22
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Yang L, Liu D, Cui G, Dou B, Wang J. Effective immobilization of nanoscale Pd on a carbon hybrid for enhanced electrocatalytic performances: stabilization mechanism investigations. NANOSCALE 2019; 11:21934-21942. [PMID: 31701979 DOI: 10.1039/c9nr05966k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The grand challenge inhibiting the use of electrocatalysts is the degradation of active species which results in poor durability and long-term performances. Studying the origin of active metal particle stabilization mechanisms by using supports and the immobilization-induced changes of active particles is of significant importance. This study describes the preparation of Pd nanoparticles supported by carbon hybrid NPG-CN, revealing that the mass and specific activities (1987 A g-1 Pd and 28.7 A m-2) of this catalyst for formic acid oxidation significantly exceed those of commercial Pd/C, and excellent stability and enhanced CO-poisoning tolerance properties are obtained. The origin of this behavior is probed by surface analytical techniques and identical-location transmission electron microscopy (IL-TEM), and the enhanced activity of Pd/NPG-CN is ascribed to the electronic effect of the substrate, the high content of surface metallic Pd0, and the reduced extent of active Pd leaching and physical ripening during the FOA process compared with commercial Pd/C. In addition, theoretical calculations demonstrate that NPG-CN can efficiently trap Pd atoms, which accumulate and form Pd clusters at trapping (nucleation) sites.
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Affiliation(s)
- Liang Yang
- Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, School of Energy and Power Engineering, University of Shanghai for Science and Technology, 561 Jungong Road, Shanghai 200093, China.
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23
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Muench F, El-Nagar GA, Tichter T, Zintler A, Kunz U, Molina-Luna L, Sikolenko V, Pasquini C, Lauermann I, Roth C. Conformal Solution Deposition of Pt-Pd Titania Nanocomposite Coatings for Light-Assisted Formic Acid Electro-Oxidation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:43081-43092. [PMID: 31647212 DOI: 10.1021/acsami.9b12783] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Many nanofabrication processes require sophisticated equipment, elevated temperature, vacuum or specific atmospheric conditions, templates, and exotic chemicals, which severely hamper their implementation in real-world applications. In this study, we outline a fully wet-chemical procedure for equipping a 3D carbon felt (CF) substrate with a multifunctional, titania nanospike-supported Pt-Pd nanoparticle (Pt-Pd-TiO2@CF) layer in a facile and scalable manner. The nanostructure, composition, chemical speciation, and formation of the material was meticulously investigated, evidencing the conformal coating of the substrate with a roughened layer of nanocrystalline rutile spikes by chemical bath deposition from Ti3+ solutions. The spikes are densely covered by bimetallic nanoparticles of 4.4 ± 1.1 nm in size, which were produced by autocatalytic Pt deposition onto Pd seeds introduced by Sn2+ ionic layer adsorption and reaction. The as-synthesized nanocomposite was applied to the (photo)electro-oxidation of formic acid (FA), exhibiting a superior performance compared to Pt-plated, Pd-seeded CF (Pt-Pd@CF) and commercial Pt-C, indicating the promoting electrocatalytic role of the TiO2 support. Upon UV-Vis illumination, the performance of the Pt-Pd-TiO2@CF electrode is remarkably increased (22-fold), generating a current density of 110 mA cm-2, distinctly outperforming titania-free Pt-Pd@CF (5 mA cm-2) and commercial Pt-C (6 mA cm-2) reference catalysts. In addition, the Pt-Pd-TiO2@CF showed a much better stability, characterized by a very high poisoning tolerance for in situ-generated CO intermediates, whose formation is hindered in the presence of TiO2. This overall performance boost is attributed to a dual enhancement mechanism (∼30% electrocatalytic and ∼70% photoelectrocatalytic). The photogenerated electrons from the TiO2 conduction band enrich the electron density of the Pt nanoparticles, promoting the generation of active oxygen species on their surfaces from adsorbed oxygen and water molecules, which facilitate the direct FA electro-oxidation into CO2.
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Affiliation(s)
- Falk Muench
- Department of Materials and Earth Sciences , Technische Universität Darmstadt , Alarich-Weiss-Straße 2 , 64287 Darmstadt , Germany
| | - Gumaa A El-Nagar
- Chemistry Department, Faculty of Science , Cairo University , Cairo 12613 , Egypt
- Helmholtz-Zentrum Berlin für Materialien und Energie , Berlin 12489 , Germany
| | | | - Alexander Zintler
- Department of Materials and Earth Sciences , Technische Universität Darmstadt , Alarich-Weiss-Straße 2 , 64287 Darmstadt , Germany
| | - Ulrike Kunz
- Department of Materials and Earth Sciences , Technische Universität Darmstadt , Alarich-Weiss-Straße 2 , 64287 Darmstadt , Germany
| | - Leopoldo Molina-Luna
- Department of Materials and Earth Sciences , Technische Universität Darmstadt , Alarich-Weiss-Straße 2 , 64287 Darmstadt , Germany
| | | | | | - Iver Lauermann
- Helmholtz-Zentrum Berlin für Materialien und Energie , Berlin 12489 , Germany
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24
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Li J, Jilani SZ, Lin H, Liu X, Wei K, Jia Y, Zhang P, Chi M, Tong YJ, Xi Z, Sun S. Ternary CoPtAu Nanoparticles as a General Catalyst for Highly Efficient Electro-oxidation of Liquid Fuels. Angew Chem Int Ed Engl 2019; 58:11527-11533. [PMID: 31206996 DOI: 10.1002/anie.201906137] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Indexed: 11/06/2022]
Abstract
Efficient electro-oxidation of formic acid, methanol, and ethanol is challenging owing to the multiple chemical reaction steps required to accomplish full oxidation to CO2 . Herein, a ternary CoPtAu nanoparticle catalyst system is reported in which Co and Pt form an intermetallic L10 -structure and Au segregates on the surface to alloy with Pt. The L10 -structure stabilizes Co and significantly enhances the catalysis of the PtAu surface towards electro-oxidation of ethanol, methanol, and formic acid, with mass activities of 1.55 A/mgPt , 1.49 A/mgPt , and 11.97 A/mgPt , respectively in 0.1 m HClO4 . The L10 -CoPtAu catalyst is also stable, with negligible degradation in mass activities and no obvious Co/Pt/Au composition changes after 10 000 potential cycles. The in situ surface-enhanced infrared absorption spectroscopy study indicates that the ternary catalyst activates the C-C bond more efficiently for ethanol oxidation.
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Affiliation(s)
- Junrui Li
- Department of Chemistry, Brown University, Providence, RI, 02912, USA
| | - Safia Z Jilani
- Department of Chemistry, Georgetown University, 37th and O Streets, NW, Washington, DC, 20057, USA
| | - Honghong Lin
- Department of Chemistry, Brown University, Providence, RI, 02912, USA
| | - Xiaoming Liu
- Center for Nanophase Materials Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Kecheng Wei
- Department of Chemistry, Brown University, Providence, RI, 02912, USA
| | - Yukai Jia
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, B3H 4R2, Canada
| | - Peng Zhang
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, B3H 4R2, Canada
| | - Miaofang Chi
- Center for Nanophase Materials Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - YuYe J Tong
- Department of Chemistry, Georgetown University, 37th and O Streets, NW, Washington, DC, 20057, USA
| | - Zheng Xi
- Department of Chemistry, Brown University, Providence, RI, 02912, USA
| | - Shouheng Sun
- Department of Chemistry, Brown University, Providence, RI, 02912, USA
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25
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Li J, Jilani SZ, Lin H, Liu X, Wei K, Jia Y, Zhang P, Chi M, Tong YJ, Xi Z, Sun S. Ternary CoPtAu Nanoparticles as a General Catalyst for Highly Efficient Electro‐oxidation of Liquid Fuels. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906137] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Junrui Li
- Department of Chemistry Brown University Providence RI 02912 USA
| | - Safia Z. Jilani
- Department of Chemistry Georgetown University 37th and O Streets, NW Washington DC 20057 USA
| | - Honghong Lin
- Department of Chemistry Brown University Providence RI 02912 USA
| | - Xiaoming Liu
- Center for Nanophase Materials Sciences Division Oak Ridge National Laboratory Oak Ridge TN 37831 USA
| | - Kecheng Wei
- Department of Chemistry Brown University Providence RI 02912 USA
| | - Yukai Jia
- Department of Chemistry Dalhousie University Halifax Nova Scotia B3H 4R2 Canada
| | - Peng Zhang
- Department of Chemistry Dalhousie University Halifax Nova Scotia B3H 4R2 Canada
| | - Miaofang Chi
- Center for Nanophase Materials Sciences Division Oak Ridge National Laboratory Oak Ridge TN 37831 USA
| | - YuYe J. Tong
- Department of Chemistry Georgetown University 37th and O Streets, NW Washington DC 20057 USA
| | - Zheng Xi
- Department of Chemistry Brown University Providence RI 02912 USA
| | - Shouheng Sun
- Department of Chemistry Brown University Providence RI 02912 USA
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26
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La0.80Sr0.20CoO3 as a noble-metal-free catalyst for the direct oxidation of formic acid under zero applied potential. Electrochem commun 2019. [DOI: 10.1016/j.elecom.2018.12.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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27
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Zhang W, Wang S, Yang F, Yang Z, Wei H, Yang Y, Wei J. Synthesis of catalytically active bimetallic nanoparticles within solution-processable metal–organic-framework scaffolds. CrystEngComm 2019. [DOI: 10.1039/c9ce00238c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Bimetallic alloy nanoparticles are synthesized by in situ reduction of mixed metal ions inside CD-MOFs.
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Affiliation(s)
- Wendi Zhang
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
- Key Laboratory for Special Functional Aggregate Materials of Education Ministry
| | - Shuping Wang
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
- Key Laboratory for Special Functional Aggregate Materials of Education Ministry
| | - Fei Yang
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
| | - Zhijie Yang
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
- Key Laboratory of Colloid and Interface Chemistry
| | - Huiying Wei
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
| | - Yanzhao Yang
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
- Key Laboratory for Special Functional Aggregate Materials of Education Ministry
| | - Jingjing Wei
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
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28
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Yang G, Yang J, Li L, Lv P, Sun Y, Yuan Z, Yang J. Effect of Temperature on the Catalytic Property of Pd-P for the Formic Acid Oxidation Reaction. ChemistrySelect 2018. [DOI: 10.1002/slct.201802628] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gaixiu Yang
- CAS Key Laboratory of Renewable Energy, Guangdong Key Laboratory of New and Renewable Energy Research and Development; Guangzhou Institute of Energy Conversion; Chinese Academy of Sciences; Guangzhou 510640 China
| | - Juntao Yang
- School of Agricultural Engineering and Food Science; Shandong University of Technology; Zibo 255000 China
| | - Lianhua Li
- CAS Key Laboratory of Renewable Energy, Guangdong Key Laboratory of New and Renewable Energy Research and Development; Guangzhou Institute of Energy Conversion; Chinese Academy of Sciences; Guangzhou 510640 China
| | - Pengmei Lv
- CAS Key Laboratory of Renewable Energy, Guangdong Key Laboratory of New and Renewable Energy Research and Development; Guangzhou Institute of Energy Conversion; Chinese Academy of Sciences; Guangzhou 510640 China
| | - Yongming Sun
- CAS Key Laboratory of Renewable Energy, Guangdong Key Laboratory of New and Renewable Energy Research and Development; Guangzhou Institute of Energy Conversion; Chinese Academy of Sciences; Guangzhou 510640 China
| | - Zhenhong Yuan
- CAS Key Laboratory of Renewable Energy, Guangdong Key Laboratory of New and Renewable Energy Research and Development; Guangzhou Institute of Energy Conversion; Chinese Academy of Sciences; Guangzhou 510640 China
| | - Jun Yang
- State Key Laboratory of Multiphase Complex Systems; Institute of Process Engineering; Chinese Academy of Sciences; Beijing 100190 China
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29
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Zhang W, Yang W, Chandrasena RU, Özdöl VB, Ciston J, Kornecki M, Raju S, Brennan R, Gray AX, Ren S. The effect of core-shell engineering on the energy product of magnetic nanometals. Chem Commun (Camb) 2018; 54:11005-11008. [PMID: 30215089 DOI: 10.1039/c8cc05978k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solution-based growth of magnetic FePt-FeCo (core-shell) nanoparticles with a controllable shell thickness has been demonstrated. The transition from spin canting to exchange coupling of FePt-FeCo core-shell nanostructures leads to a 28% increase in the coercivity (12.8 KOe) and a two-fold enhancement in the energy product (9.11 MGOe).
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Affiliation(s)
- Wei Zhang
- Department of Mechanical and Aerospace Engineering, and Research and Education in Energy, Environment & Water (RENEW) Institute, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA.
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30
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An P, Anumula R, Wu H, Han J, Luo Z. Charge transfer interactions of pyrazine with Ag 12 clusters towards precise SERS chemical mechanism. NANOSCALE 2018; 10:16787-16794. [PMID: 30160289 DOI: 10.1039/c8nr05253k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We have synthesized Ag12 nanoclusters (NCs) with mercaptosuccinic acid (H2SMA) as the ligand. This cluster is found to be water-soluble and has satisfactory stability with [Ag12(HSMA)6Na6]2+, as determined by high-resolution mass spectrometry. Interestingly, it is noted that both the H2SMA ligand and Ag12 clusters do not display interference Raman signals, suggesting that this material is a good candidate as a substrate for surface-enhanced Raman spectroscopy (SERS). As a result, we observe enhanced Raman activity of pyrazine molecules adsorbed on Ag12 NCs along with a large red-shift up to ∼27 cm-1. To fully demonstrate the charge transfer interactions between pyrazine and Ag12 clusters, by utilizing first-principles calculations, we estimate polarizability tensor and conduct electronic natural population analysis (NPA), natural bond orbital (NBO) analysis, deformation density analysis (DDA) and charge decomposition analysis (CDA). In view of the minimized contribution from local surface plasmon resonance (LSPR), such a comprehensive study of metal NCs, which are free of Raman interference, provides a modelling method towards the long-debated chemical mechanism in SERS theory.
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Affiliation(s)
- Pan An
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
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31
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Gamler JTL, Ashberry HM, Skrabalak SE, Koczkur KM. Random Alloyed versus Intermetallic Nanoparticles: A Comparison of Electrocatalytic Performance. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1801563. [PMID: 29984851 DOI: 10.1002/adma.201801563] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 04/12/2018] [Indexed: 05/15/2023]
Abstract
As synthetic methods advance for metal nanoparticles, more rigorous studies of structure-function relationships can be made. Many electrocatalytic processes depend on the size, shape, and composition of the nanocatalysts. Here, the properties and electrocatalytic behavior of random alloyed and intermetallic nanoparticles are compared. Beginning with an introduction of metallic nanoparticles for catalysis and the unique features of bimetallic compositions, the discussion transitions to case studies of nanoscale electrocatalysts where direct comparisons of alloy and intermetallic compositions are undertaken for methanol electrooxidation, formic acid electrooxidation, the oxygen reduction reaction, and the electroreduction of carbon dioxide (CO2 ). Design and synthesis strategies for random alloyed and intermetallic nanoparticles are discussed, with an emphasis on Pt-M and Cu-M compositions as model systems. The differences in catalytic performance between alloys and intermetallic nanoparticles are highlighted in order to provide an outlook for future electrocatalyst design.
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Affiliation(s)
- Jocelyn T L Gamler
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN, 47405, USA
| | - Hannah M Ashberry
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN, 47405, USA
| | - Sara E Skrabalak
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN, 47405, USA
| | - Kallum M Koczkur
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN, 47405, USA
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32
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Formic acid electrooxidation activity of Pt and Pt/Au catalysts: Effects of surface physical properties and irreversible adsorption of Bi. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.04.071] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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33
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Poly-l-lysine mediated synthesis of palladium nanochain networks and nanodendrites as highly efficient electrocatalysts for formic acid oxidation and hydrogen evolution. J Colloid Interface Sci 2018; 516:325-331. [DOI: 10.1016/j.jcis.2018.01.046] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 01/11/2018] [Accepted: 01/12/2018] [Indexed: 11/22/2022]
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34
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Li D, Tang Z, Chen S, Tian Y, Wang X. Peptide-FlgA3-Based Gold Palladium Bimetallic Nanoparticles That Catalyze the Oxygen Reduction Reaction in Alkaline Solution. ChemCatChem 2017. [DOI: 10.1002/cctc.201700299] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Dongliang Li
- School of Pharmacy; Guangdong Pharmaceutical University; Guangzhou 510006 P.R. China
| | - Zhenghua Tang
- New Energy Research Institute, School of Environment and Energy; South China University of Technology, Guangzhou Higher Education Mega Center; Guangzhou Guangdong 510006 P.R. China
- Guangdong Provincial Key Lab of Atmospheric, Environment and Pollution Control, Guangdong Provincial, Engineering and Technology Research Center for Environmental, Risk Prevention and Emergency Disposal; South China University of Technology, Guangzhou Higher Education Mega Centre; Guangzhou 510006 P.R. China
| | - Shaowei Chen
- New Energy Research Institute, School of Environment and Energy; South China University of Technology, Guangzhou Higher Education Mega Center; Guangzhou Guangdong 510006 P.R. China
- Department of Chemistry and Biochemistry; University of California; 1156 High Street Santa Cruz California 95064 USA
| | - Yong Tian
- School of Pharmacy; Guangdong Pharmaceutical University; Guangzhou 510006 P.R. China
| | - Xiufang Wang
- School of Pharmacy; Guangdong Pharmaceutical University; Guangzhou 510006 P.R. China
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35
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Qi Z, Xiao C, Liu C, Goh TW, Zhou L, Maligal-Ganesh R, Pei Y, Li X, Curtiss LA, Huang W. Sub-4 nm PtZn Intermetallic Nanoparticles for Enhanced Mass and Specific Activities in Catalytic Electrooxidation Reaction. J Am Chem Soc 2017; 139:4762-4768. [DOI: 10.1021/jacs.6b12780] [Citation(s) in RCA: 212] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zhiyuan Qi
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Chaoxian Xiao
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Cong Liu
- Chemical
Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Tian Wei Goh
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Lin Zhou
- Ames
Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
| | | | - Yuchen Pei
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Xinle Li
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Larry A. Curtiss
- Materials
Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Wenyu Huang
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- Ames
Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
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36
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Wang Z, Fan H, Liang H, Ma J, Li S, Song Y, Wang R. Microfluidic Synthesis and Characterization of FePtSn/C Catalysts with Enhanced Electro-Catalytic Performance for Direct Methanol Fuel Cells. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.01.159] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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37
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4-Nitrophenol Reduction by a Single Platinum Palladium Nanocube Caged within a Nitrogen-Doped Hollow Carbon Nanosphere. ChemCatChem 2017. [DOI: 10.1002/cctc.201601364] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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38
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Wang Y, Xiong Z, Xia Y. Branched PdAu nanowires with superior electrocatalytic formic acid oxidation activities. RSC Adv 2017. [DOI: 10.1039/c7ra02115a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Branched PdAu nanowires supported on graphene were prepared as catalysts for formic acid electro-oxidation, and they exhibited higher catalytic activity and durability than Pd/graphene and commercial Pd/C catalysts.
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Affiliation(s)
- Yingxia Wang
- Collaborative Innovation Center for Marine Biomass Fibers
- Materials and Textiles of Shandong Province
- Qingdao University
- Qingdao 266071
- PR China
| | - Zhong Xiong
- Collaborative Innovation Center for Marine Biomass Fibers
- Materials and Textiles of Shandong Province
- Qingdao University
- Qingdao 266071
- PR China
| | - Yanzhi Xia
- Collaborative Innovation Center for Marine Biomass Fibers
- Materials and Textiles of Shandong Province
- Qingdao University
- Qingdao 266071
- PR China
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39
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Yang Z, Wang Y, Dong T, Yuan X, Lv L, Wei X, Wang J. Formate: A Possible Replacement for Formic Acid in Fuel Cells. Aust J Chem 2017. [DOI: 10.1071/ch16585] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We present a facile thermodynamic strategy for identifying formate electrooxidation at a Pt electrode in a fuel cell. Mixtures of formate and sulfuric acid are used as fuel solutions for maintaining formic acid at a low concentration and reducing CO poisoning of the Pt electrode. Pt is modified by a polyaniline porous film to improve the electrocatalytic activity towards formate oxidation. The result indicates that formate can bypass the poisoning path to form CO2 at a low potential. Additionally, we propose a new mechanism of formate electrooxidation and investigate the possibility of an independent oxidation path starting from free formate in solution.
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40
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Jin Y, Zhao J, Li F, Jia W, Liang D, Chen H, Li R, Hu J, Ni J, Wu T, Zhong D. Nitrogen-doped graphene supported palladium-nickel nanoparticles with enhanced catalytic performance for formic acid oxidation. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.10.087] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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41
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Wang J, Liu C, Xiao B, Cheng N, Riese A, Banis MN, Sun X. Antipoisoning Performance of Platinum Catalysts with Varying Carbon Nanotube Properties: Electrochemically Revealing the Importance of Defects. ChemElectroChem 2016. [DOI: 10.1002/celc.201600589] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jianshe Wang
- School of Chemical Engineering and Energy; Zhengzhou University; Science Road 100 Zhengzhou 450000 P.R. China
- Department of Mechanical and Materials Engineering; The University of Western Ontario; ON N6A 5B9 Canada
| | - Changhai Liu
- Department of Mechanical and Materials Engineering; The University of Western Ontario; ON N6A 5B9 Canada
- School of Materials Science & Engineering; Changzhou University; Changzhou 213164 P.R. China
| | - Biwei Xiao
- Department of Mechanical and Materials Engineering; The University of Western Ontario; ON N6A 5B9 Canada
| | - Niancai Cheng
- Department of Mechanical and Materials Engineering; The University of Western Ontario; ON N6A 5B9 Canada
| | - Adam Riese
- Department of Mechanical and Materials Engineering; The University of Western Ontario; ON N6A 5B9 Canada
| | - Mohammad Norouzi Banis
- Department of Mechanical and Materials Engineering; The University of Western Ontario; ON N6A 5B9 Canada
| | - Xueliang Sun
- Department of Mechanical and Materials Engineering; The University of Western Ontario; ON N6A 5B9 Canada
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42
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Navaee A, Narimani M, Korani A, Ahmadi R, Salimi A, Soltanian S. Bimetallic Fe 15 Pt 85 nanoparticles as an effective anodic electrocatalyst for non-enzymatic glucose/oxygen biofuel cell. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.05.033] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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43
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Weber J, Wain AJ, Piili H, Matilainen VP, Vuorema A, Attard GA, Marken F. Residual Porosity of 3D-LAM-Printed Stainless-Steel Electrodes Allows Galvanic Exchange Platinisation. ChemElectroChem 2016. [DOI: 10.1002/celc.201600098] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- James Weber
- Department of Chemistry; University of Bath; Claverton Down Bath BA2 7AY UK
| | | | - Heidi Piili
- Laser Processing Research Group; Lappeenranta University of Technology; Tuotantokatu 2 53850 LPR Lappeenranta Finland
| | - Ville-Pekka Matilainen
- Laser Processing Research Group; Lappeenranta University of Technology; Tuotantokatu 2 53850 LPR Lappeenranta Finland
| | - Anne Vuorema
- Lappeenranta University of Technology; Skinnarilankatu 34 53850 Lappeenranta Finland
| | - Gary A. Attard
- Department of Physics; The Oliver Lodge Laboratory; University of Liverpool; Oxford Street Liverpool L69 7ZE UK
| | - Frank Marken
- Department of Chemistry; University of Bath; Claverton Down Bath BA2 7AY UK
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44
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A facile approach for preparation of highly dispersed platinum-copper/carbon nanocatalyst toward formic acid electro-oxidation. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2015.12.223] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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45
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Yousaf AB, Imran M, Zeb A, Xie X, Liang K, Zhou X, Yuan CZ, Xu AW. Synergistic effect of graphene and multi-walled carbon nanotubes composite supported Pd nanocubes on enhancing catalytic activity for electro-oxidation of formic acid. Catal Sci Technol 2016. [DOI: 10.1039/c5cy02217g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synergistic effect of rGO/MWCNTs composite supported Pd nanocubes enhanced the performance of direct formic acid fuel cells.
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Affiliation(s)
- Ammar Bin Yousaf
- Division of Nanomaterials and Chemistry
- Hefei National Laboratory for Physical Sciences at Microscale Department
- University of Science and Technology of China
- Hefei 230026
- PR China
| | - M. Imran
- Division of Nanomaterials and Chemistry
- Hefei National Laboratory for Physical Sciences at Microscale Department
- University of Science and Technology of China
- Hefei 230026
- PR China
| | - Akif Zeb
- Division of Nanomaterials and Chemistry
- Hefei National Laboratory for Physical Sciences at Microscale Department
- University of Science and Technology of China
- Hefei 230026
- PR China
| | - Xiao Xie
- Division of Nanomaterials and Chemistry
- Hefei National Laboratory for Physical Sciences at Microscale Department
- University of Science and Technology of China
- Hefei 230026
- PR China
| | - Kuang Liang
- Division of Nanomaterials and Chemistry
- Hefei National Laboratory for Physical Sciences at Microscale Department
- University of Science and Technology of China
- Hefei 230026
- PR China
| | - Xiao Zhou
- Division of Nanomaterials and Chemistry
- Hefei National Laboratory for Physical Sciences at Microscale Department
- University of Science and Technology of China
- Hefei 230026
- PR China
| | - Cheng-Zong Yuan
- Division of Nanomaterials and Chemistry
- Hefei National Laboratory for Physical Sciences at Microscale Department
- University of Science and Technology of China
- Hefei 230026
- PR China
| | - An-Wu Xu
- Division of Nanomaterials and Chemistry
- Hefei National Laboratory for Physical Sciences at Microscale Department
- University of Science and Technology of China
- Hefei 230026
- PR China
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46
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Du C, He S, Liu M, Gao X, Zhang R, Chen W. Novel Pd13Cu3S7nanotubes with high electrocatalytic activity towards both oxygen reduction and ethanol oxidation reactions. CrystEngComm 2016. [DOI: 10.1039/c6ce00688d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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47
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Zheng F, Luk SY, Kwong TL, Yung KF. Synthesis of hollow PtAg alloy nanospheres with excellent electrocatalytic performances towards methanol and formic acid oxidations. RSC Adv 2016. [DOI: 10.1039/c6ra06398e] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hollow PtAg alloy nanospheres were synthesized via galvanic replacement reaction between silver nanoparticles and K2PtCl4 at 60 °C.
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Affiliation(s)
- Fulin Zheng
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kowloon
- Hong Kong
| | - Sin-Yee Luk
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kowloon
- Hong Kong
| | - Tsz-Lung Kwong
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kowloon
- Hong Kong
| | - Ka-Fu Yung
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kowloon
- Hong Kong
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48
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Karatepe Ö, Yıldız Y, Pamuk H, Eris S, Dasdelen Z, Sen F. Enhanced electrocatalytic activity and durability of highly monodisperse Pt@PPy–PANI nanocomposites as a novel catalyst for the electro-oxidation of methanol. RSC Adv 2016. [DOI: 10.1039/c6ra06210e] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Highly monodisperse Pt NPs@PPy–PANI exhibits superior electrocatalytic activity and stability toward electro-oxidation of methanol as a new electrode material.
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Affiliation(s)
- Özlem Karatepe
- Sen Research Group
- Biochemistry Department
- Faculty of Arts and Science
- Dumlupınar University
- 43100 Kütahya
| | - Yunus Yıldız
- Sen Research Group
- Biochemistry Department
- Faculty of Arts and Science
- Dumlupınar University
- 43100 Kütahya
| | - Handan Pamuk
- Sen Research Group
- Biochemistry Department
- Faculty of Arts and Science
- Dumlupınar University
- 43100 Kütahya
| | - Sinan Eris
- Sen Research Group
- Biochemistry Department
- Faculty of Arts and Science
- Dumlupınar University
- 43100 Kütahya
| | - Zeynep Dasdelen
- Sen Research Group
- Biochemistry Department
- Faculty of Arts and Science
- Dumlupınar University
- 43100 Kütahya
| | - Fatih Sen
- Sen Research Group
- Biochemistry Department
- Faculty of Arts and Science
- Dumlupınar University
- 43100 Kütahya
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49
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Merrill NA, McKee EM, Merino KC, Drummy LF, Lee S, Reinhart B, Ren Y, Frenkel AI, Naik RR, Bedford NM, Knecht MR. Identifying the Atomic-Level Effects of Metal Composition on the Structure and Catalytic Activity of Peptide-Templated Materials. ACS NANO 2015; 9:11968-11979. [PMID: 26497843 DOI: 10.1021/acsnano.5b04665] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Bioinspired approaches for the formation of metallic nanomaterials have been extensively employed for a diverse range of applications including diagnostics and catalysis. These materials can often be used under sustainable conditions; however, it is challenging to control the material size, morphology, and composition simultaneously. Here we have employed the R5 peptide, which forms a 3D scaffold to direct the size and linear shape of bimetallic PdAu nanomaterials for catalysis. The materials were prepared at varying Pd:Au ratios to probe optimal compositions to achieve maximal catalytic efficiency. These materials were extensively characterized at the atomic level using transmission electron microscopy, extended X-ray absorption fine structure spectroscopy, and atomic pair distribution function analysis derived from high-energy X-ray diffraction patterns to provide highly resolved structural information. The results confirmed PdAu alloy formation, but also demonstrated that significant surface structural disorder was present. The catalytic activity of the materials was studied for olefin hydrogenation, which demonstrated enhanced reactivity from the bimetallic structures. These results present a pathway to the bioinspired production of multimetallic materials with enhanced properties, which can be assessed via a suite of characterization methods to fully ascertain structure/function relationships.
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Affiliation(s)
- Nicholas A Merrill
- Department of Chemistry, University of Miami , 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Erik M McKee
- Department of Chemistry, University of Miami , 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Kyle C Merino
- Department of Chemistry, University of Miami , 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Lawrence F Drummy
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base , Dayton, Ohio 45433, United States
| | - Sungsik Lee
- X-Ray Science Division, Argonne National Laboratory , 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Benjamin Reinhart
- X-Ray Science Division, Argonne National Laboratory , 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Yang Ren
- X-Ray Science Division, Argonne National Laboratory , 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Anatoly I Frenkel
- Department of Physics, Yeshiva University , New York, New York 10016, United States
| | - Rajesh R Naik
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base , Dayton, Ohio 45433, United States
| | - Nicholas M Bedford
- Department of Chemistry, University of Miami , 1301 Memorial Drive, Coral Gables, Florida 33146, United States
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base , Dayton, Ohio 45433, United States
- Applied Chemicals and Materials Division, National Institute of Standards and Technology , Boulder, Colorado 80305, United States
| | - Marc R Knecht
- Department of Chemistry, University of Miami , 1301 Memorial Drive, Coral Gables, Florida 33146, United States
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50
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Wang Y, He Q, Wei H, Guo J, Ding K, Wang Q, Wang Z, Wei S, Guo Z. Optimal Electrocatalytic Pd/MWNTs Nanocatalysts toward Formic Acid Oxidation. Electrochim Acta 2015; 184:452-465. [PMID: 29622817 DOI: 10.1016/j.electacta.2015.10.046] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The operating conditions such as composition of electrolyte and temperature can greatly influence the formic acid (HCOOH) oxidation reaction (FAOR). Palladium decorated multi-walled carbon nanotubes (Pd/MWNTs) were successfully synthesized and employed as nanocatalysts to explore the effects of formic acid, sulfuric acid (H2SO4) concentration and temperature on FAOR. Both the hydrogen adsorption in low potential range and the oxidation of poisoning species during the high potential range in cyclic voltammetry were demonstrated to contribute to the enhanced electroactivity of Pd/MWNTs. The as-synthesized Pd/MWNTs gave the best performance under a condition with balanced adsorptions of HCOOH and H2SO4 molecules. The dominant dehydrogenation pathway on Pd/MWNTs can be largely depressed by the increased dehydration pathway, leading to an increased charge transfer resistance (Rct ). Increasing HCOOH concentration could directly increase the dehydration process proportion and cause the production of COads species. H2SO4 as donor of H+ greatly facilitated the onset oxidation of HCOOH in the beginning process but it largely depressed the HCOOH oxidation with excess amount of H+. Enhanced ion mobility with increasing the temperature was mainly responsible for the increased current densities, improved tolerance stabilities and reduced Rct values, while dehydration process was also increased simultaneously.
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Affiliation(s)
- Yiran Wang
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996 USA
| | - Qingliang He
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996 USA
| | - Huige Wei
- Department of Chemistry and Biochemistry, and Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, TX 77710 USA
| | - Jiang Guo
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996 USA
| | - Keqiang Ding
- College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, Hebei 050024 China
| | - Qiang Wang
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083 China
| | - Zhe Wang
- Chemistry Department, Xavier University, New Orleans, LA 70125 USA
| | - Suying Wei
- Department of Chemistry and Biochemistry, and Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, TX 77710 USA
| | - Zhanhu Guo
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996 USA
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