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Su H, Hu YH. Gradient Functional Layer Anode for Carbonate-Superstructured Solid Fuel Cells with Ethane Fuel. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311684. [PMID: 38533989 DOI: 10.1002/smll.202311684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/14/2024] [Indexed: 03/28/2024]
Abstract
Carbonate-superstructured solid fuel cells (CSSFCs) are an emerging type of fuel cells with high flexibility of fuels. However, using ethane fuel for solid fuel cells is a great challenge due to serious degradation of their anodes. Herein, this critical issue is solved by creating a novel gradient functional layer anode for CSSFCs. First, a finer-scale anode with a larger surface area is demonstrated to provide more active sites for the internal reforming reaction of ethane, achieving a 60% higher ethane conversion rate and 40% lower polarization resistance than conventional anodes. Second, incorporating a gradient functional layer into the anode results in an additional 50% enhancement in the peak power density of CSSFCs to a record high value (up to 241 mW cm-2) with dry ethane fuel at a low temperature of 550 °C, which is even comparable to the power density of conventional solid oxide fuel cells above 700 °C. Furthermore, the CSSFC with the gradient anode exhibits excellent durability for over 200 h. This finding provides a new strategy to develop efficient anodes for hydrocarbon fuels.
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Affiliation(s)
- Hanrui Su
- Department of Materials Science and Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI, 49931-1295, USA
| | - Yun Hang Hu
- Department of Materials Science and Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI, 49931-1295, USA
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Jang I, S A Carneiro J, Crawford JO, Cho YJ, Parvin S, Gonzalez-Casamachin DA, Baltrusaitis J, Lively RP, Nikolla E. Electrocatalysis in Solid Oxide Fuel Cells and Electrolyzers. Chem Rev 2024; 124:8233-8306. [PMID: 38885684 DOI: 10.1021/acs.chemrev.4c00008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Interest in energy-to-X and X-to-energy (where X represents green hydrogen, carbon-based fuels, or ammonia) technologies has expanded the field of electrochemical conversion and storage. Solid oxide electrochemical cells (SOCs) are among the most promising technologies for these processes. Their unmatched conversion efficiencies result from favorable thermodynamics and kinetics at elevated operating temperatures (400-900 °C). These solid-state electrochemical systems exhibit flexibility in reversible operation between fuel cell and electrolysis modes and can efficiently utilize a variety of fuels. However, electrocatalytic materials at SOC electrodes remain nonoptimal for facilitating reversible operation and fuel flexibility. In this Review, we explore the diverse range of electrocatalytic materials utilized in oxygen-ion-conducting SOCs (O-SOCs) and proton-conducting SOCs (H-SOCs). We examine their electrochemical activity as a function of composition and structure across different electrochemical reactions to highlight characteristics that lead to optimal catalytic performance. Catalyst deactivation mechanisms under different operating conditions are discussed to assess the bottlenecks in performance. We conclude by providing guidelines for evaluating the electrochemical performance of electrode catalysts in SOCs and for designing effective catalysts to achieve flexibility in fuel usage and mode of operation.
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Affiliation(s)
- Inyoung Jang
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Juliana S A Carneiro
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Joshua O Crawford
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Yoon Jin Cho
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Sahanaz Parvin
- Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Diego A Gonzalez-Casamachin
- Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Jonas Baltrusaitis
- Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Ryan P Lively
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Eranda Nikolla
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
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3
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Zhao K, Jiang X, Wu X, Feng H, Wang X, Wan Y, Wang Z, Yan N. Recent development and applications of differential electrochemical mass spectrometry in emerging energy conversion and storage solutions. Chem Soc Rev 2024; 53:6917-6959. [PMID: 38836324 DOI: 10.1039/d3cs00840a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
Electrochemical energy conversion and storage are playing an increasingly important role in shaping the sustainable future. Differential electrochemical mass spectrometry (DEMS) offers an operando and cost-effective tool to monitor the evolution of gaseous/volatile intermediates and products during these processes. It can deliver potential-, time-, mass- and space-resolved signals which facilitate the understanding of reaction kinetics. In this review, we show the latest developments and applications of DEMS in various energy-related electrochemical reactions from three distinct perspectives. (I) What is DEMS addresses the working principles and key components of DEMS, highlighting the new and distinct instrumental configurations for different applications. (II) How to use DEMS tackles practical matters including the electrochemical test protocols, quantification of both potential and mass signals, and error analysis. (III) Where to apply DEMS is the focus of this review, dealing with concrete examples and unique values of DEMS studies in both energy conversion applications (CO2 reduction, water electrolysis, carbon corrosion, N-related catalysis, electrosynthesis, fuel cells, photo-electrocatalysis and beyond) and energy storage applications (Li-ion batteries and beyond, metal-air batteries, supercapacitors and flow batteries). The recent development of DEMS-hyphenated techniques and the outlook of the DEMS technique are discussed at the end. As DEMS celebrates its 40th anniversary in 2024, we hope this review can offer electrochemistry researchers a comprehensive understanding of the latest developments of DEMS and will inspire them to tackle emerging scientific questions using DEMS.
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Affiliation(s)
- Kai Zhao
- Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan, 430072, China.
- Shenzhen Research Institute of Wuhan University, Shenzhen, 518057, China
| | - Xiaoyi Jiang
- Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan, 430072, China.
- Shenzhen Research Institute of Wuhan University, Shenzhen, 518057, China
| | - Xiaoyu Wu
- Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan, 430072, China.
- Shenzhen Research Institute of Wuhan University, Shenzhen, 518057, China
| | - Haozhou Feng
- Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan, 430072, China.
- Shenzhen Research Institute of Wuhan University, Shenzhen, 518057, China
| | - Xiude Wang
- Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan, 430072, China.
- Shenzhen Research Institute of Wuhan University, Shenzhen, 518057, China
| | - Yuyan Wan
- Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan, 430072, China.
- Shenzhen Research Institute of Wuhan University, Shenzhen, 518057, China
| | - Zhiping Wang
- Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan, 430072, China.
| | - Ning Yan
- Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan, 430072, China.
- Shenzhen Research Institute of Wuhan University, Shenzhen, 518057, China
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Hou X, Jiang Y, Wei K, Jiang C, Jen TC, Yao Y, Liu X, Ma J, Irvine JTS. Syngas Production from CO 2 and H 2O via Solid-Oxide Electrolyzer Cells: Fundamentals, Materials, Degradation, Operating Conditions, and Applications. Chem Rev 2024; 124:5119-5166. [PMID: 38619540 DOI: 10.1021/acs.chemrev.3c00760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Highly efficient coelectrolysis of CO2/H2O into syngas (a mixture of CO/H2), and subsequent syngas conversion to fuels and value-added chemicals, is one of the most promising alternatives to reach the corner of zero carbon strategy and renewable electricity storage. This research reviews the current state-of-the-art advancements in the coelectrolysis of CO2/H2O in solid oxide electrolyzer cells (SOECs) to produce the important syngas intermediate. The overviews of the latest research on the operating principles and thermodynamic and kinetic models are included for both oxygen-ion- and proton-conducting SOECs. The advanced materials that have recently been developed for both types of SOECs are summarized. It later elucidates the necessity and possibility of regulating the syngas ratios (H2:CO) via changing the operating conditions, including temperature, inlet gas composition, flow rate, applied voltage or current, and pressure. In addition, the sustainability and widespread application of SOEC technology for the conversion of syngas is highlighted. Finally, the challenges and the future research directions in this field are addressed. This review will appeal to scientists working on renewable-energy-conversion technologies, CO2 utilization, and SOEC applications. The implementation of the technologies introduced in this review offers solutions to climate change and renewable-power-storage problems.
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Affiliation(s)
- Xiangjun Hou
- School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan, 643000, P. R. China
- Institute for Catalysis and Energy Solutions, Florida Campus, University of South Africa, Roodepoort 1710, South Africa
| | - Yao Jiang
- School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan, 643000, P. R. China
| | - Keyan Wei
- School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan, 643000, P. R. China
- Institute for Catalysis and Energy Solutions, Florida Campus, University of South Africa, Roodepoort 1710, South Africa
| | - Cairong Jiang
- School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan, 643000, P. R. China
| | - Tien-Chien Jen
- Department of Mechanical Engineering Science, Kingsway Campus, University of Johannesburg, Auckland Park, Johannesburg 2006, South Africa
| | - Yali Yao
- Institute for Catalysis and Energy Solutions, Florida Campus, University of South Africa, Roodepoort 1710, South Africa
| | - Xinying Liu
- Institute for Catalysis and Energy Solutions, Florida Campus, University of South Africa, Roodepoort 1710, South Africa
| | - Jianjun Ma
- School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan, 643000, P. R. China
| | - John T S Irvine
- School of Chemistry, University of St Andrews, The Purdie Building, St Andrews, Fife, Scotland, KY16 9ST, United Kingdom
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Zhou L, Sun J, Xu X, Ma M, Li Y, Chen Q, Su H. Full quantitative resource utilization of raw mustard waste through integrating a comprehensive approach for producing hydrogen and soil amendments. Microb Cell Fact 2024; 23:27. [PMID: 38238808 PMCID: PMC10797975 DOI: 10.1186/s12934-023-02293-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 12/30/2023] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND Pickled mustard, the largest cultivated vegetable in China, generates substantial waste annually, leading to significant environmental pollution due to challenges in timely disposal, leading to decomposition and sewage issues. Consequently, the imperative to address this concern centers on the reduction and comprehensive resource utilization of raw mustard waste (RMW). To achieve complete and quantitative resource utilization of RMW, this study employs novel technology integration for optimizing its higher-value applications. RESULTS Initially, subcritical hydrothermal technology was applied for rapid decomposition, with subsequent ammonia nitrogen removal via zeolite. Thereafter, photosynthetic bacteria, Rhodopseudomonas palustris, were employed to maximize hydrogen and methane gas production using various fermentation enhancement agents. Subsequent solid-liquid separation yielded liquid fertilizer from the fermented liquid and soil amendment from solid fermentation remnants. Results indicate that the highest glucose yield (29.6 ± 0.14) was achieved at 165-173℃, with a total sugar content of 50.2 g/L and 64% glucose proportion. Optimal ammonia nitrogen removal occurred with 8 g/L zeolite and strain stable growth at 32℃, with the highest OD600 reaching 2.7. Several fermentation promoters, including FeSO4, Neutral red, Na2S, flavin mononucleotide, Nickel titanate, Nickel oxide, and Mixture C, were evaluated for hydrogen production. Notably, Mixture C resulted in the maximum hydrogen production (756 mL), a production rate of 14 mL/h, and a 5-day stable hydrogen production period. Composting experiments enhanced humic acid content and organic matter (OM) by 17% and 15%, respectively. CONCLUSIONS This innovative technology not only expedites RMW treatment and hydrogen yield but also substantially enriches soil fertility. Consequently, it offers a novel approach for low-carbon, zero-pollution RMW management. The study's double outcomes extend to large-scale RMW treatment based on the aim of full quantitative resource utilization of RMW. Our method provides a valuable reference for waste management in similar perishable vegetable plantations.
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Affiliation(s)
- Ling Zhou
- Sichuan Communication Surveying and Design Institute Co., LTD, 35 Taisheng North Road, Qingyang District, Chengdu City, Sichuan Province, China
| | - JiaZhen Sun
- China railway academy Co., LTD, No, 118 Xiyuecheng Street, Jinniu District, Chengdu City, Sichuan Province, China
| | - XiaoJun Xu
- Sichuan Communication Surveying and Design Institute Co., LTD, 35 Taisheng North Road, Qingyang District, Chengdu City, Sichuan Province, China
| | - MingXia Ma
- Sichuan Communication Surveying and Design Institute Co., LTD, 35 Taisheng North Road, Qingyang District, Chengdu City, Sichuan Province, China
| | - YongZhi Li
- Chongqing Institute of Green and Interligent Technology, Chinese Academy of Science, 266, Fangzheng Avenue, Shuitu High-tech Park, Beibei, Chongqing, 400714, China
| | - Qiao Chen
- Chongqing Institute of Green and Interligent Technology, Chinese Academy of Science, 266, Fangzheng Avenue, Shuitu High-tech Park, Beibei, Chongqing, 400714, China.
| | - HaiFeng Su
- Chongqing Institute of Green and Interligent Technology, Chinese Academy of Science, 266, Fangzheng Avenue, Shuitu High-tech Park, Beibei, Chongqing, 400714, China.
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Su H, Hu YH. Thermo-photo catalytic anode process for carbonate-superstructured solid fuel cells. Proc Natl Acad Sci U S A 2024; 121:e2314996121. [PMID: 38165931 PMCID: PMC10786274 DOI: 10.1073/pnas.2314996121] [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: 08/29/2023] [Accepted: 11/16/2023] [Indexed: 01/04/2024] Open
Abstract
Converting hydrocarbons and greenhouse gases (i.e., carbon dioxide, CO2) directly into electricity through fuel cells at intermediate temperatures (450 to 550 °C) remains a significant challenge, primarily due to the sluggish activation of C-H and C=O bonds. Here, we demonstrated a unique strategy to address this issue, in which light illumination was introduced into the thermal catalytic CO2 reforming of ethane in the anode as a unique thermo-photo anode process for carbonate-superstructured solid fuel cells. The light-enhanced fuel activation led to excellent cell performance with a record-high peak power density of 168 mW cm-2 at an intermediate temperature of 550 °C. Furthermore, no degradation was observed during ~50 h operation. Such a successful integration of photo energy into the fuel cell system provides a new direction for the development of efficient fuel cells.
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Affiliation(s)
- Hanrui Su
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, MI49931-1295
| | - Yun Hang Hu
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, MI49931-1295
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7
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Liu Y, Jiang X, Wang L, Meng R, Tang Q, Guo Y, Han Z, Ling G, Zhang C, Yang QH. A Zn-based catalyst with high oxygen reduction activity and anti-poisoning property for stable seawater batteries. J Chem Phys 2023; 158:141101. [PMID: 37061490 DOI: 10.1063/5.0142794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2023] Open
Abstract
Seawater batteries (SWBs) are a key part of the future underwater energy network for maritime safety and resource development due to their high safety, long lifespan, and eco-friendly nature. However, the complicated seawater composition and pollution, such as the S2-, usually poison the catalyst and lead to the degradation of the battery performance. Here, Zn single-atom catalysts (SACs) were demonstrated as effective oxygen reduction reaction catalysts with high anti-poisoning properties by density functional theory calculation and the Zn SACs anchoring on an N, P-doped carbon substrate (Zn-SAC@PNC) was synthesized by a one-pot strategy. Zinc active sites ensure the anti-poisoning property toward S2-, and N, P-doped carbon helps improve the activity. Therefore, Zn-SAC@PNC exhibits superior activity (E1/2: 0.87 V, Tafel slope: 69.5 mV dec-1) compared with Pt/C and shows a lower decay rate of the voltage after discharge in lean-oxygen natural seawater. In the presence of S2-, Zn-SAC@PNC can still maintain its original catalytic activity, which ensures the stable operation of SWBs in the marine environment with sulfur-based pollutants. This study provides a new strategy to design and develop efficient cathode materials for SWBs.
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Affiliation(s)
- Yingxin Liu
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China
| | - Xin Jiang
- Nanoyang Group, Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage, State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, National Industry-Education Integration Platform of Energy Storage, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Li Wang
- Nanoyang Group, Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage, State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, National Industry-Education Integration Platform of Energy Storage, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Rongwei Meng
- Nanoyang Group, Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage, State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, National Industry-Education Integration Platform of Energy Storage, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Quanjun Tang
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yong Guo
- Nanoyang Group, Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage, State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, National Industry-Education Integration Platform of Energy Storage, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Zishan Han
- Nanoyang Group, Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage, State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, National Industry-Education Integration Platform of Energy Storage, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Guowei Ling
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China
| | - Chen Zhang
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China
| | - Quan-Hong Yang
- Nanoyang Group, Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage, State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, National Industry-Education Integration Platform of Energy Storage, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
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8
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Liu XD, Ye AH, Chen ZM. Catalytic Enantioselective Intermolecular Three-Component Sulfenylative Difunctionalizations of 1,3-Dienes. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
- Xiao-Dong Liu
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
| | - Ai-Hui Ye
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
| | - Zhi-Min Chen
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
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Merkouri LP, Ramirez Reina T, Duyar MS. Feasibility of switchable dual function materials as a flexible technology for CO 2 capture and utilisation and evidence of passive direct air capture. NANOSCALE 2022; 14:12620-12637. [PMID: 35975753 DOI: 10.1039/d2nr02688k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The feasibility of a Dual Function Material (DFM) with a versatile catalyst offering switchable chemical synthesis from carbon dioxide (CO2) was demonstrated for the first time, showing evidence of the ability of these DFMs to passively capture CO2 directly from the air as well. These DFMs open up possibilities in flexible chemical production from dilute sources of CO2, through a combination of CO2 adsorption and subsequent chemical transformation (methanation, reverse water gas shift or dry reforming of methane). Combinations of Ni Ru bimetallic catalyst with Na2O, K2O or CaO adsorbent were supported on CeO2-Al2O3 to develop flexible DFMs. The designed multicomponent materials were shown to reversibly adsorb CO2 between the 350 and 650 °C temperature range and were easily regenerated by an inert gas purge stream. The components of the flexible DFMs showed a high degree of interaction with each other, which evidently enhanced their CO2 capture performance ranging from 0.14 to 0.49 mol kg-1. It was shown that captured CO2 could be converted into useful products through either CO2 methanation, reverse water-gas shift (RWGS) or dry reforming of methane (DRM), which provides flexibility in terms of co-reactant (hydrogen vs. methane) and end product (synthetic natural gas, syngas or CO) by adjusting reaction conditions. The best DFM was the one containing CaO, producing 104 μmol of CH4 per kgDFM in CO2 methanation, 58 μmol of CO per kgDFM in RWGS and 338 μmol of CO per kgDFM in DRM.
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Affiliation(s)
| | - Tomas Ramirez Reina
- Department of Chemical and Process Engineering, University of Surrey, Guildford, GU2 7XH UK.
- Department of Inorganic Chemistry and Materials Sciences Institute, University of Seville-CSIC, 41092, Seville, Spain
| | - Melis S Duyar
- Department of Chemical and Process Engineering, University of Surrey, Guildford, GU2 7XH UK.
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10
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Direct-methane anode-supported solid oxide fuel cells fabricated by aqueous gel-casting. Ann Ital Chir 2022. [DOI: 10.1016/j.jeurceramsoc.2022.06.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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11
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Li J, Fan L, Hou N, Zhao Y, Li Y. Solid oxide fuel cell with a spin-coated yttria stabilized zirconia/gadolinia doped ceria bi-layer electrolyte. RSC Adv 2022; 12:13220-13227. [PMID: 35520125 PMCID: PMC9063383 DOI: 10.1039/d2ra02035a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 04/23/2022] [Indexed: 11/21/2022] Open
Abstract
A thin yttria stabilized zirconia (YSZ)/gadolinia doped ceria (GDC) bi-layer membrane is fabricated through the slurry spin coating technique and used as an electrolyte of a solid oxide fuel cell with La0.6Sr0.4Co0.2Fe0.8O3−δ as the cathode. The viscosity of the YSZ slurry is controlled by adding ethanol in the terpineol solvent, which shows a negligible effect on the thickness but a remarkable influence on the porosity of the YSZ film. The thickness of the YSZ layer increases with the YSZ content in the slurry. The YSZ films are pre-sintered at various temperatures, and the one sintered at 1200 °C has a moderate interaction with the GDC slurry, forming a 10 μm-thick YSZ/GDC bilayer with a low porosity and a low ohmic resistance. The corresponding single cell shows a maximum power density of 1480 mW cm−2 at 750 °C. Thin YSZ/GDC bi-layer electrolyte is prepared with the slurry spin coating method for SOFCs, and shows a Pmax of 1480 mW cm−2 at 750 °C.![]()
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Affiliation(s)
- Jingyu Li
- State Key Laboratory of Chemical Engineering (Tianjin University), Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology, Tianjin University Tianjin 300072 China .,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 China
| | - Lijun Fan
- State Key Laboratory of Chemical Engineering (Tianjin University), Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology, Tianjin University Tianjin 300072 China .,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 China
| | - Nianjun Hou
- State Key Laboratory of Chemical Engineering (Tianjin University), Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology, Tianjin University Tianjin 300072 China .,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 China
| | - Yicheng Zhao
- State Key Laboratory of Chemical Engineering (Tianjin University), Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology, Tianjin University Tianjin 300072 China .,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 China
| | - Yongdan Li
- State Key Laboratory of Chemical Engineering (Tianjin University), Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology, Tianjin University Tianjin 300072 China .,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 China.,Department of Chemical and Metallurgical Engineering, Aalto University Kemistintie 1, FI-00076 Aalto Finland
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12
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Promoted Performance of Layered Perovskite PrBaFe2O5+δ Cathode for Protonic Ceramic Fuel Cells by Zn Doping. Catalysts 2022. [DOI: 10.3390/catal12050488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Proton-conducting solid–oxide fuel cell (H-SOFC) is an alternative promising low-temperature electrochemical cell for renewable energy, but the performance is insufficient because of the low activity of cathode materials at low temperatures. A layered perovskite oxide PrBaFe1.9Zn0.1O5+δ (PBFZ) was synthesized and investigated as a promising cathode material for low-temperature H-SOFC. Here, the partial substitution of Fe by Zn further enhances the electrical conductivity and thermal compatibility of PrBaFe2O5+δ (PBF). The PBFZ exhibits improved conductivity in the air at intermediate temperatures and good chemical compatibility with electrolytes. The oxygen vacancy formed at the PBFZ lattice due to Zn doping enhances proton defects, resulting in an improved performance by extending the catalytic sites to the whole cathode area. A single cell with a Ni-BZCY anode, PBFZ cathode, and BaZr0.7Ce0.2Y0.1O3-δ (BZCY) electrolyte membrane was successfully fabricated and tested at 550–700 °C. The maximum power density and Rp were enhanced to 513 mW·cm−2 and 0.3 Ω·cm2 at 700 °C, respectively, due to Zn doping.
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Zamudio-García J, Porras-Vázquez JM, Losilla ER, Marrero-López D. LaCrO 3-CeO 2-Based Nanocomposite Electrodes for Efficient Symmetrical Solid Oxide Fuel Cells. ACS APPLIED ENERGY MATERIALS 2022; 5:4536-4546. [PMID: 36186956 PMCID: PMC9513820 DOI: 10.1021/acsaem.1c04116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
La0.98Cr0.75Mn0.25O3-δ-Ce0.9Gd0.1O1.95 (LCM-CGO) nanocomposite layers with different LCM contents, between 40 and 60 wt %, are prepared in a single step by a spray-pyrolysis deposition method and evaluated as both air and fuel electrodes for solid oxide fuel cells (SOFCs). The formation of fluorite (CGO) and perovskite (LCM) phases in the nanocomposite electrode is confirmed by different structural and microstructural techniques. The intimate mixture of LCM and CGO phases inhibits the grain growth, retaining the nanoscale microstructure even after annealing at 1000 °C with a grain size lower than 50 nm for LCM-CGO compared to 200 nm for pure LCM. The synergetic effect of nanosized LCM and CGO by combining their high electronic and ionic conductivity, respectively, leads to efficient and durable symmetrical electrodes. The best electrochemical properties are found for 50 wt % LCM-CGO, showing polarization resistance values of 0.29 and 0.09 Ω cm2 at 750 °C in air and H2, respectively, compared to 2.05 and 1.9 Ω cm2 for a screen-printed electrode with the same composition. This outstanding performance is mainly ascribed to the nanoscale electrode microstructure formed directly on the electrolyte at a relatively low temperature. These results reveal that the combination of different immiscible phases with different crystal structures and electrochemical properties could be a promising strategy to design highly efficient and durable air and fuel electrodes for SOFCs.
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Affiliation(s)
- Javier Zamudio-García
- Departamento
de Química Inorgánica, Universidad
de Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain
| | - José M. Porras-Vázquez
- Departamento
de Química Inorgánica, Universidad
de Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain
| | - Enrique R. Losilla
- Departamento
de Química Inorgánica, Universidad
de Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain
| | - David Marrero-López
- Departamento
de Física Aplicada I, Universidad
de Málaga, Campus
de Teatinos s/n, 29071 Málaga, Spain
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14
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Herzig C, Frank J, Nenning A, Gerstl M, Bumberger A, Fleig J, Opitz AK, Limbeck A. Combining electrochemical and quantitative elemental analysis to investigate the sulfur poisoning process of ceria thin film fuel electrodes. JOURNAL OF MATERIALS CHEMISTRY. A 2022; 10:1840-1851. [PMID: 35178245 PMCID: PMC8788136 DOI: 10.1039/d1ta06873c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
This work deals with the effect of sulfur incorporation into model-type GDC thin films on their in-plane ionic conductivity. By means of impedance measurements, a strongly deteriorating effect on the grain boundary conductivity was confirmed, which additionally depends on the applied electrochemical polarisation. To quantify the total amount of sulfur incorporated into GDC thin films, online-laser ablation of solids in liquid (online-LASIL) was used as a novel solid sampling strategy. Online-LASIL combines several advantages of conventional sample introduction systems and enables the detection of S as a minor component in a very limited sample system (in the present case 35 μg total sample mass). To reach the requested sensitivity for S detection using an inductively coupled plasma-mass spectrometer (ICP-MS), the reaction cell of the quadrupole instrument was used and the parameters for the mass shift reaction with O2 were optimised. The combination of electrical and quantitative analytical results allows the identification of a potential sulfur incorporation pathway, which very likely proceeds along GDC grain boundaries with oxysulfide formation as the main driver of ion transport degradation. Depending on the applied cathodic bias, the measured amount of sulfur would be equivalent to 1-4 lattice constants of GDC transformed into an oxysulfide phase at the material's grain boundaries.
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Affiliation(s)
- C Herzig
- TU Wien, Institute of Chemical Technologies and Analytics Getreidemarkt 9/164 I2AC 1060 Vienna Austria
| | - J Frank
- TU Wien, Joint Workshop, Technical Chemistry Vienna Austria
| | - A Nenning
- TU Wien, Institute of Chemical Technologies and Analytics Getreidemarkt 9/164 I2AC 1060 Vienna Austria
| | - M Gerstl
- TU Wien, Institute of Chemical Technologies and Analytics Getreidemarkt 9/164 I2AC 1060 Vienna Austria
| | - A Bumberger
- TU Wien, Institute of Chemical Technologies and Analytics Getreidemarkt 9/164 I2AC 1060 Vienna Austria
| | - J Fleig
- TU Wien, Institute of Chemical Technologies and Analytics Getreidemarkt 9/164 I2AC 1060 Vienna Austria
| | - A K Opitz
- TU Wien, Institute of Chemical Technologies and Analytics Getreidemarkt 9/164 I2AC 1060 Vienna Austria
| | - A Limbeck
- TU Wien, Institute of Chemical Technologies and Analytics Getreidemarkt 9/164 I2AC 1060 Vienna Austria
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15
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Deactivation Model Study of High Temperature H2S Wet-Desulfurization by Using ZnO. ENERGIES 2021. [DOI: 10.3390/en14238019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
High-temperature desulfurization techniques are fundamental for the development of reliable and efficient conversion systems of low-cost fuels and biomass that answer to the nowadays environmental and energy security issues. This is particularly true for biomass gasification coupled to SOFC systems where the sulfur content has to be minimized before being fed to the SOFC. Thus, commercially available zinc oxide has been studied and characterized as a desulfurizing agent in a fixed-bed reactor at high temperatures from 400 °C to 600 °C. The sorbent material was characterized by XRD, BET, SEM, and EDS analyses before and after adsorption. The sorbent’s sorption capacity has been evaluated at different temperatures, as well as the breakthrough curves. Moreover, the kinetic parameters as the initial sorption rate constant k0, the deactivation rate constant kd, and the activation energy have been calculated using the linearized deactivation model. The best performances have been obtained at 550 °C, obtaining a sorption capacity of 5.4 g per 100 g of sorbent and a breakthrough time of 2.7 h. These results can be used to extend ZnO desulfurization techniques to a higher temperature than the ones used today (i.e., 550 °C with respect to 400 °C).
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16
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Mizera A, Kowalczyk A, Chmielarz L, Drożdż E. Catalysts Based on Strontium Titanate Doped with Ni/Co/Cu for Dry Reforming of Methane. MATERIALS 2021; 14:ma14237227. [PMID: 34885384 PMCID: PMC8658506 DOI: 10.3390/ma14237227] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/19/2021] [Accepted: 11/23/2021] [Indexed: 11/16/2022]
Abstract
Two series of strontium titanates doped with Ni, Co, or Cu with general formula of SrTi1-xMexO3 for Sr-stoichiometric and Sr0.95Ti1-xMexO3 for Sr-non-stoichiometric materials (where Me = Ni, Co or Cu and x were 0.02 and 0.06) were obtained by the wet chemical method. The samples were calcinated at 900, 950, and 1050 °C and characterized in terms of their structural properties (XRD), the possibility of undergoing the reduction and oxidation reactions (TPR/TPOx), and catalytic properties. All obtained materials were multiphase and although the XRD analysis does not confirm the presence of Ni, Co, and Cu oxides (with one exception for Cu-doped sample), the TPR/TPOx profiles show reduction peaks that can be attributed to the reduction of these oxides which may at first appear in an amorphous form. Catalytic tests in dry reforming of methane reaction showed that the highest catalytic activity was achieved for Ni-doped materials (up to 90% of CH4 conversion) while Co and Cu-doped samples showed only a very slight catalytic effect. Additionally, the decrease in methane conversion with an increasing calcination temperature was observed for Ni-doped strontium titanates.
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Affiliation(s)
- Adrian Mizera
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30-059 Kraków, Poland;
- Correspondence:
| | - Andrzej Kowalczyk
- Faculty of Chemistry, Jagiellonian University, 31-007 Kraków, Poland; (A.K.); (L.C.)
| | - Lucjan Chmielarz
- Faculty of Chemistry, Jagiellonian University, 31-007 Kraków, Poland; (A.K.); (L.C.)
| | - Ewa Drożdż
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30-059 Kraków, Poland;
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17
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Guharoy U, Reina TR, Liu J, Sun Q, Gu S, Cai Q. A theoretical overview on the prevention of coking in dry reforming of methane using non-precious transition metal catalysts. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101728] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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Kim JH, Liu M, Chen Y, Murphy R, Choi Y, Liu Y, Liu M. Understanding the Impact of Sulfur Poisoning on the Methane-Reforming Activity of a Solid Oxide Fuel Cell Anode. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02470] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jun Hyuk Kim
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Mingfei Liu
- Energy Research & Innovation, Phillips 66 Company, 2331 CityWest Blvd., Houston, Texas 77042, United States
| | - Yu Chen
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Ryan Murphy
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - YongMan Choi
- College of Photonics, National Yang Ming Chiao Tung University, Tainan 71150, Taiwan
| | - Ying Liu
- Energy Research & Innovation, Phillips 66 Company, 2331 CityWest Blvd., Houston, Texas 77042, United States
| | - Meilin Liu
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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19
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Duranti L, Luisetto I, Casciardi S, Gaudio CD, Bartolomeo ED. Multi-functional, high-performing fuel electrode for dry methane oxidation and CO2 electrolysis in reversible solid oxide cells. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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González-Castaño M, González-Arias J, Sánchez ME, Cara-Jiménez J, Arellano-García H. Syngas production using CO2-rich residues: From ideal to real operating conditions. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101661] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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21
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Techniques for Overcoming Sulfur Poisoning of Catalyst Employed in Hydrocarbon Reforming. CATALYSIS SURVEYS FROM ASIA 2021. [DOI: 10.1007/s10563-021-09340-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Pantaleo G, Parola VL, Testa ML, Venezia AM. CO 2 Reforming of CH 4 over SiO 2-Supported Ni Catalyst: Effect of Sn as Support and Metal Promoter. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02193] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Reliability analysis of a multi-stack solid oxide fuel cell from a systems engineering perspective. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116571] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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24
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Studies of Nickel/Samarium-Doped Ceria for Catalytic Partial Oxidation of Methane and Effect of Oxygen Vacancy. Catalysts 2021. [DOI: 10.3390/catal11060731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We investigated the performance of nickel/samarium-doped ceria (Ni/SDC) nanocatalysts on the catalytic partial oxidation of methane (CPOM). Studies of temperature-programmed surface reaction and reduction reveal that catalytic activity is determined by a synergistic effect produced by Ni metals and metal-support interaction. Catalytic activity was more dependent on the Ni content below 600 °C, while there is not much difference for all catalysts at high temperatures. The catalyst exhibiting high activities toward syngas production (i.e., a CH4 conversion >90% at 700 °C) requires a medium Ni-SDC interaction with an Sm/Ce ratio of about 1/9 to 2/8. This is accounted for by optimum oxygen vacancies and adequate ion diffusivity in the SDCs which, as reported, also display the highest ion conductivity for fuel cell applications.
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25
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Riegraf M, Amaya‐Dueñas DM, Sata N, Friedrich KA, Costa R. Performance and Limitations of Nickel-Doped Chromite Anodes in Electrolyte-Supported Solid Oxide Fuel Cells. CHEMSUSCHEM 2021; 14:2401-2413. [PMID: 33844883 PMCID: PMC8252760 DOI: 10.1002/cssc.202100330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/12/2021] [Indexed: 06/12/2023]
Abstract
Ni-doped chromite anodes were integrated into electrolyte-supported cells (ESC) with 5×5 cm2 size and investigated in fuel cell mode with H2 /H2 O fuel gas. Both a stoichiometric and a nominally A-site deficient chromite anode material showed promising performance at 860 °C approaching the ones of state-of-the-art Ni/Gd-doped ceria (CGO) anodes. While the difference in polarization resistance was small, an increased ohmic resistance of the perovskite anodes was observed, which is related to their limited electronic conductivity. Increasing the chromite electrode thickness was shown to enhance performance and stability considerably. Degradation increased with current density, suggesting its dependency on the electrode potential, and could be reversed by redox cycling. Sulfur poisoning with 20 ppm hydrogen sulfide led to rapid voltage drops for the chromite anodes. It is discussed that Ni nanoparticle exsolution facilitates hydrogen dissociation to the extent that it is not rate-limiting at the investigated temperature unless an insufficiently thick electrode thickness is employed or sulfur impurities are present in the feed gas.
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Affiliation(s)
- Matthias Riegraf
- Institute of Engineering Thermodynamics German Aerospace Center (DLR)Pfaffenwaldring 38–4070569StuttgartGermany
| | - Diana M. Amaya‐Dueñas
- Institute of Engineering Thermodynamics German Aerospace Center (DLR)Pfaffenwaldring 38–4070569StuttgartGermany
| | - Noriko Sata
- Institute of Engineering Thermodynamics German Aerospace Center (DLR)Pfaffenwaldring 38–4070569StuttgartGermany
| | - K. Andreas Friedrich
- Institute of Engineering Thermodynamics German Aerospace Center (DLR)Pfaffenwaldring 38–4070569StuttgartGermany
- Institute for Building EnergeticsThermotechnology and Energy StorageUniversity of StuttgartPfaffenwaldring 3170569StuttgartGermany
| | - Rémi Costa
- Institute of Engineering Thermodynamics German Aerospace Center (DLR)Pfaffenwaldring 38–4070569StuttgartGermany
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26
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Chien AC, Ye NJ. Effect of preparation method and particle size of Ni/SDC catalyst on methane oxidation. CATAL COMMUN 2021. [DOI: 10.1016/j.catcom.2021.106312] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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27
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Yang X, Sun W, Ma M, Xu C, Ren R, Qiao J, Wang Z, Zhen S, Sun K. Enhancing Stability and Catalytic Activity by In Situ Exsolution for High-Performance Direct Hydrocarbon Solid Oxide Fuel Cell Anodes. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c00806] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaoxia Yang
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Wang Sun
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Minjian Ma
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Chunming Xu
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Rongzheng Ren
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Jinshuo Qiao
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Zhenhua Wang
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Shuying Zhen
- State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100081, People’s Republic of China
| | - Kening Sun
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
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28
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Dry Reforming of Methane over Carbon Fibre-Supported CeZrO2, Ni-CeZrO2, Pt-CeZrO2 and Pt-Ni-CeZrO2 Catalysts. Catalysts 2021. [DOI: 10.3390/catal11050563] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Dry reforming of methane (DRM) is one of the most important processes allowing transformation of two most potent greenhouse gases into a synthesis gas. The CH4 and CO2 are converted at high temperatures in the presence of a metal catalyst (usually Ni, also promoted with noble metals, supported over various oxides). The DRM process is not widely used in the gas processing industry because of prompt deactivation of the catalyst owing to carbon deposition and the blockage of the metal active sites. This problem can be hindered by proper design of the catalyst in terms, e.g., of its composition and by providing strong interaction between active metal and catalytic support. The properties of the latter are also crucial for the catalyst’s performance in DRM and the occurrence of parallel reactions such as reverse water gas shift, CO2 deoxidation or carbon formation. In this paper we show for the first time the DRM performance of the ceria-zirconia and metal (Ni and/or Pt) supported on carbon fibres. The obtained Ni and Ni-Pt containing catalysts showed relatively high activity in the studied reaction and high resistance towards carbon deposition.
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29
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Abstract
Solid oxide fuel cells (SOFCs) are promising and rugged solid-state power sources that can directly and electrochemically convert the chemical energy into electric power. Direct-hydrocarbon SOFCs eliminate the external reformers; thus, the system is significantly simplified and the capital cost is reduced. SOFCs comprise the cathode, electrolyte, and anode, of which the anode is of paramount importance as its catalytic activity and chemical stability are key to direct-hydrocarbon SOFCs. The conventional SOFC anode is composed of a Ni-based metallic phase that conducts electrons, and an oxygen-ion conducting oxide, such as yttria-stabilized zirconia (YSZ), which exhibits an ionic conductivity of 10−3–10−2 S cm−1 at 700 °C. Although YSZ-based SOFCs are being commercialized, YSZ-Ni anodes are still suffering from carbon deposition (coking) and sulfur poisoning, ensuing performance degradation. Furthermore, the high operating temperatures (>700 °C) also pose challenges to the system compatibility, leading to poor long-term durability. To reduce operating temperatures of SOFCs, intermediate-temperature proton-conducting SOFCs (P-SOFCs) are being developed as alternatives, which give rise to superior power densities, coking and sulfur tolerance, and durability. Due to these advances, there are growing efforts to implement proton-conducting oxides to improve durability of direct-hydrocarbon SOFCs. However, so far, there is no review article that focuses on direct-hydrocarbon P-SOFCs. This concise review aims to first introduce the fundamentals of direct-hydrocarbon P-SOFCs and unique surface properties of proton-conducting oxides, then summarize the most up-to-date achievements as well as current challenges of P-SOFCs. Finally, strategies to overcome those challenges are suggested to advance the development of direct-hydrocarbon SOFCs.
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30
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Undoped Sr 2MMoO 6 Double Perovskite Molybdates (M = Ni, Mg, Fe) as Promising Anode Materials for Solid Oxide Fuel Cells. MATERIALS 2021; 14:ma14071715. [PMID: 33807360 PMCID: PMC8036809 DOI: 10.3390/ma14071715] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 03/28/2021] [Accepted: 03/29/2021] [Indexed: 11/29/2022]
Abstract
The chemical design of new functional materials for solid oxide fuel cells (SOFCs) is of great interest as a means for overcoming the disadvantages of traditional materials. Redox stability, carbon deposition and sulfur poisoning of the anodes are positioned as the main processes that result in the degradation of SOFC performance. In this regard, double perovskite molybdates are possible alternatives to conventional Ni-based cermets. The present review provides the fundamental properties of four members: Sr2NiMoO6-δ, Sr2MgMoO6-δ, Sr2FeMoO6-δ and Sr2Fe1.5Mo0.5O6-δ. These properties vary greatly depending on the type and concentration of the 3d-element occupying the B-position of A2BB’O6. The main emphasis is devoted to: (i) the synthesis features of undoped double molybdates, (ii) their electrical conductivity and thermal behaviors in both oxidizing and reducing atmospheres, as well as (iii) their chemical compatibility with respect to other functional SOFC materials and components of gas atmospheres. The information provided can serve as the basis for the design of efficient fuel electrodes prepared from complex oxides with layered structures.
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31
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Tang Q, Yin X, Kuchukulla RR, Zeng Q. Recent Advances in Multicomponent Reactions with Organic and Inorganic Sulfur Compounds. CHEM REC 2021; 21:893-905. [DOI: 10.1002/tcr.202100026] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/27/2021] [Accepted: 03/01/2021] [Indexed: 12/12/2022]
Affiliation(s)
- Qinqin Tang
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection College of Materials Chemistry & Chemical Engineering Chengdu University of Technology Chengdu 610059 China
| | - Xianjie Yin
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection College of Materials Chemistry & Chemical Engineering Chengdu University of Technology Chengdu 610059 China
| | - Ratnakar Reddy Kuchukulla
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection College of Materials Chemistry & Chemical Engineering Chengdu University of Technology Chengdu 610059 China
- College of Environment and Ecology Chengdu University of Technology Chengdu 610059 China
| | - Qingle Zeng
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection College of Materials Chemistry & Chemical Engineering Chengdu University of Technology Chengdu 610059 China
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32
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Kim JH, Kim JK, Liu J, Curcio A, Jang JS, Kim ID, Ciucci F, Jung W. Nanoparticle Ex-solution for Supported Catalysts: Materials Design, Mechanism and Future Perspectives. ACS NANO 2021; 15:81-110. [PMID: 33370099 DOI: 10.1021/acsnano.0c07105] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Supported metal catalysts represent one of the major milestones in heterogeneous catalysis. Such catalytic systems are feasible for use in a broad range of applications, including renewable energy devices, sensors, automotive emission control systems, and chemical reformers. The lifetimes of these catalytic platforms depend strongly on the stability of the supported nanoparticles. With this regard, nanoparticles synthesized via ex-solution process emphasize exceptional robustness as they are socketed in the host oxide. Ex-solution refers to a phenomenon which yields selective growth of fine and uniformly distributed metal nanocatalysts on oxide supports upon partial reduction. This type of advanced structural engineering is a game-changer in the field of heterogeneous catalysis with numerous studies showing the benefits of ex-solution process. In this review, we highlight the latest research efforts regarding the origin of the ex-solution phenomenon and the mechanism underpinning particle formation. We also propose research directions to expand the utility and functionality of the current ex-solution techniques.
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Affiliation(s)
- Jun Hyuk Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jun Kyu Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jiapeng Liu
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China
| | - Antonino Curcio
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China
| | - Ji-Soo Jang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Il-Doo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Francesco Ciucci
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China
| | - WooChul Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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33
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Abstract
Rare-earth-elements-based oxide ion conductors with various structures and their structure-property relationships were systematically presented and summarized, which can provide new insight and guidance for the development of new oxide ion conductors.
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Affiliation(s)
- Xiaohui Li
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing National Laboratory for Molecular Science (BNLMS)
- Beijing 100871
- People's Republic of China
| | - Xiaojun Kuang
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices
- Guilin 541004
- People's Republic of China
| | - Junliang Sun
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing National Laboratory for Molecular Science (BNLMS)
- Beijing 100871
- People's Republic of China
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34
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Zichittella G, Pérez-Ramírez J. Status and prospects of the decentralised valorisation of natural gas into energy and energy carriers. Chem Soc Rev 2021; 50:2984-3012. [DOI: 10.1039/d0cs01506g] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We critically review the recent advances in process, reactor, and catalyst design that enable process miniaturisation for decentralised natural gas upgrading into electricity, liquefied natural gas, fuels and chemicals.
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Affiliation(s)
- Guido Zichittella
- Institute of Chemical and Bioengineering
- Department of Chemistry and Applied Biosciences
- ETH Zurich
- 8093 Zurich
- Switzerland
| | - Javier Pérez-Ramírez
- Institute of Chemical and Bioengineering
- Department of Chemistry and Applied Biosciences
- ETH Zurich
- 8093 Zurich
- Switzerland
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35
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Zhang G, Neagu D, King PJ, Ramadan S, O'Neill A, Metcalfe IS. The effects of sulphur poisoning on the microstructure, composition and oxygen transport properties of perovskite membranes coated with nanoscale alumina layers. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118736] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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36
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le Saché E, Pastor-Pérez L, Garcilaso V, Watson D, Centeno M, Odriozola J, Reina T. Flexible syngas production using a La2Zr2-xNixO7-δ pyrochlore-double perovskite catalyst: Towards a direct route for gas phase CO2 recycling. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.05.039] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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Abd Aziz AJ, Baharuddin NA, Somalu MR, Muchtar A. Review of composite cathodes for intermediate-temperature solid oxide fuel cell applications. CERAMICS INTERNATIONAL 2020; 46:23314-23325. [DOI: 10.1016/j.ceramint.2020.06.176] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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38
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Musso M, Romero M, Faccio R, Bussi J. Catalytic assessment of a Ni-La-Sn ternary metallic system in ethanol steam reforming and the influence of the Sn/La atomic ratio in the catalytic performance. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.05.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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39
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Shahid M, He C, Sankarasubramanian S, Ramani VK, Basu S. Co 3O 4-Impregnated NiO-YSZ: An Efficient Catalyst for Direct Methane Electrooxidation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:32578-32590. [PMID: 32589004 DOI: 10.1021/acsami.0c06407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Co3O4-impregnated NiO-YSZ (yttria-stabilized zirconia) is a possible electrocatalyst for direct methane electrooxidation with both high catalytic activity and the ability to mitigate coking. The physical and electrochemical properties of Co3O4-impregnated NiO-YSZ anodes are investigated and benchmarked against NiO-YSZ and CeO2-impregnated NiO-YSZ anodes. The following methane electrooxidation activity trend: Co3O4-impregnated NiO-YSZ > CeO2-impregnated NiO-YSZ > NiO-YSZ with io (exchange current density) values of 88, 83, and 2 mA cm-2, respectively, is obtained in the high overpotential region. The high activity of Co3O4-impregnated NiO-YSZ is attributed to the changes in the electronic structure and microstructure with the incorporation of nickel into the lattice of Co3O4 as observed using X-ray photoelectron spectroscopy, temperature-programmed reduction, high-resolution transmission electron microscopy, and field emission scanning electron microscopy. Co3O4-impregnated NiO-YSZ also demonstrated the least coking during operation, confirming its utility as a methane electrooxidation catalyst.
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Affiliation(s)
- Mohamed Shahid
- Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas 110016, India
| | - Cheng He
- Center for Solar Energy and Energy Storage and Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130-4899, United States
| | - Shrihari Sankarasubramanian
- Center for Solar Energy and Energy Storage and Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130-4899, United States
| | - Vijay K Ramani
- Center for Solar Energy and Energy Storage and Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130-4899, United States
| | - Suddhasatwa Basu
- Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas 110016, India
- CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
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40
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Effects of exit-stream mixtures of the steam reforming on the intermediate-temperature solid oxide fuel cells with nickel-based anodes. J Solid State Electrochem 2020. [DOI: 10.1007/s10008-020-04556-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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41
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Ren R, Wang Z, Meng X, Xu C, Qiao J, Sun W, Sun K. Boosting the Electrochemical Performance of Fe-Based Layered Double Perovskite Cathodes by Zn 2+ Doping for Solid Oxide Fuel Cells. ACS APPLIED MATERIALS & INTERFACES 2020; 12:23959-23967. [PMID: 32352274 DOI: 10.1021/acsami.0c04605] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Mixed oxygen ionic and electronic conduction is a vital function for cathode materials of solid oxide fuel cells (SOFCs), ensuring high efficiency and low-temperature operation. However, Fe-based layered double perovskites, as a classical family of mixed oxygen ionic and electronic conducting (MIEC) oxides, are generally inactive toward the oxygen reduction reaction due to their intrinsic low electronic and oxygen-ion conductivity. Herein, Zn doping is presented as a novel pathway to improve the electrochemical performance of Fe-based layered double perovskite oxides in SOFC applications. The results demonstrate that the incorporation of Zn ions at Fe sites of the PrBaFe2O5+δ (PBF) lattice simultaneously regulates the concentration of holes and oxygen vacancies. Consequently, the oxygen surface exchange coefficient and oxygen-ion bulk diffusion coefficient of Zn-doped PBF are significantly tuned. The enhanced mixed oxygen ionic and electronic conduction is further confirmed by a lower polarization resistance of 0.0615 and 0.231 Ω·cm2 for PrBaFe1.9Zn0.1O5+δ (PBFZ0.1) and PBF, respectively, which is measured using symmetric cells at 750 °C. Moreover, the PBFZ0.1-based single cell demonstrates the highest output performance among the reported Fe-based layered double perovskite cathodes, rendering a peak power density of 1.06 W·cm-2 at 750 °C and outstanding stability over 240 h at 700 °C. The current work provides a highly effective strategy for designing cathode materials for next-generation SOFCs.
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Affiliation(s)
- Rongzheng Ren
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Zhenhua Wang
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, Beijing Institute of Technology, Beijing 100081, People's Republic of China
- Collaborative Innovation Center of Electric Vehicles in Beijing, No. 5 Zhongguancun South Avenue, Haidian District, Beijing 100081, People's Republic of China
| | - Xingguang Meng
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Chunming Xu
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Jinshuo Qiao
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Wang Sun
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Kening Sun
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, Beijing Institute of Technology, Beijing 100081, People's Republic of China
- Collaborative Innovation Center of Electric Vehicles in Beijing, No. 5 Zhongguancun South Avenue, Haidian District, Beijing 100081, People's Republic of China
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42
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Welander MM, Drasbæk DB, Traulsen ML, Sudireddy BR, Holtappels P, Walker RA. What does carbon tolerant really mean? Operando vibrational studies of carbon accumulation on novel solid oxide fuel cell anodes prepared by infiltration. Phys Chem Chem Phys 2020; 22:9815-9823. [PMID: 32337517 DOI: 10.1039/d0cp00195c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Operando Raman spectroscopy and electrochemical techniques were used to examine carbon deposition on niobium doped SrTiO3 (STN) based SOFC anodes infiltrated with Ni, Co, Ce0.9Gd0.1O2 (CGO) and combinations of these materials. Cells were operated with CH4/CO2 mixtures at 750 °C. Raman data shows that carbon forms on all cells under operating conditions when Ni is present as an infiltrate. Additional experiments performed during cell cool down, and on separate material pellets (not subject to an applied potential), show that chemically labile oxygen available in the CGO infiltrate will preferentially oxidize all deposited surface carbon as temperatures drop below 700 °C. These observations highlight the benefit of CGO as a material in SOFC anodes but more importantly, the value of operando spectroscopic techniques as a tool when evaluating a material's susceptibility to carbon accumulation. Solely relying on ex situ measurements will potentially lead to false conclusions about the studied materials' ability to resist carbon and improperly inform efforts to develop mechanisms describing electrochemical oxidation and material degradation mechanisms in these high temperature energy conversion devices.
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Affiliation(s)
- Martha M Welander
- Department of Chemistry & Biochemistry, Montana State University, P. O. Box, 173400, Bozeman MT 59715, USA.
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43
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Xu Z, Hu X, Wan Y, Xue S, Zhang S, Zhang L, Zhang B, Xia C. Electrochemical performance and anode reaction process for Ca doped Sr2Fe1·5Mo0·5O6-δ as electrodes for symmetrical solid oxide fuel cells. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136067] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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44
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Yin J, Jin J, Lin H, Yin Z, Li J, Lu M, Guo L, Xi P, Tang Y, Yan C. Optimized Metal Chalcogenides for Boosting Water Splitting. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1903070. [PMID: 32440471 PMCID: PMC7237848 DOI: 10.1002/advs.201903070] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 01/16/2020] [Indexed: 05/28/2023]
Abstract
Electrocatalytic water splitting (2H2O → 2H2 + O2) is a very promising avenue to effectively and environmentally friendly produce highly pure hydrogen (H2) and oxygen (O2) at a large scale. Different materials have been developed to enhance the efficiency for water splitting. Among them, chalcogenides with unique atomic arrangement and high electronic transport show interesting catalytic properties in various electrochemical reactions, such as the hydrogen evolution reaction, oxygen evolution reaction, and overall water splitting, while the control of their morphology and structure is of vital importance to their catalytic performance. Herein, the general synthetic methods are summarized to prepare metal chalcogenides and different strategies are designed to improve their catalytic performance for water splitting. The remaining challenges in the research and development of metal chalcogenides and possible directions for future research are also summarized.
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Affiliation(s)
- Jie Yin
- State Key Laboratory of Applied Organic ChemistryKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China
- Department of ChemistryBrown UniversityProvidenceRI02912USA
| | - Jing Jin
- State Key Laboratory of Applied Organic ChemistryKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China
| | - Honghong Lin
- Department of ChemistryBrown UniversityProvidenceRI02912USA
| | - Zhouyang Yin
- Department of ChemistryBrown UniversityProvidenceRI02912USA
| | - Jianyi Li
- State Key Laboratory of Applied Organic ChemistryKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China
| | - Min Lu
- State Key Laboratory of Applied Organic ChemistryKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China
| | - Linchuan Guo
- State Key Laboratory of Applied Organic ChemistryKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China
| | - Pinxian Xi
- State Key Laboratory of Applied Organic ChemistryKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China
| | - Yu Tang
- State Key Laboratory of Applied Organic ChemistryKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China
| | - Chun‐Hua Yan
- State Key Laboratory of Applied Organic ChemistryKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China
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45
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Li J, Wei B, Yue X, Su C, Lü Z. Investigations on sulfur poisoning mechanisms of a solid oxide fuel cell with niobium-doped ferrate perovskite anode. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.135703] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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46
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Seo J, Tsvetkov N, Jeong SJ, Yoo Y, Ji S, Kim JH, Kang JK, Jung W. Gas-Permeable Inorganic Shell Improves the Coking Stability and Electrochemical Reactivity of Pt toward Methane Oxidation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:4405-4413. [PMID: 31888326 DOI: 10.1021/acsami.9b16410] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Solid oxide fuel cells produce electricity directly by oxidizing methane, which is the most attractive natural gas fuel, and metal nanocatalysts are a promising means of overcoming the poor catalytic activity of conventional ceramic electrodes. However, the lack of thermal and chemical stability of nanocatalysts is a major bottleneck in the effort to ensure the lifetime of metal-decorated electrodes for methane oxidation. Here, for the first time, this issue is addressed by encapsulating metal nanoparticles with gas-permeable inorganic shells. Pt particles approximately 10 nm in size are dispersed on the surface of a porous La0.75Sr0.25Cr0.5Mn0.5O3 (LSCM) electrode via wet infiltration and are then coated with an ultrathin Al2O3 layer via atomic layer deposition. The Al2O3 overcoat, despite being an insulator, significantly enhances the immunity to carbon coking and provides high activity for the electrochemical oxidation of methane, thereby reducing the reaction impedance of the Pt-decorated electrode by more than 2 orders of magnitude and making the electrode activity of the Pt-decorated sample at 650 °C comparable with those reported at 800 °C for pristine LSCM electrodes. These observations provide a new perspective on strategies to lower the operation temperature, which has long been a challenge related to hydrocarbon-fueled solid oxide fuel cells.
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Affiliation(s)
- Jongsu Seo
- Department Materials Science and Engineering , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , South Korea
| | - Nikolai Tsvetkov
- Department of Energy, Environment, Water and Sustainability , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , South Korea
| | - Seung Jin Jeong
- Department Materials Science and Engineering , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , South Korea
| | - Yeongeun Yoo
- Department Nano Manufacturing Technology , Korea Institute of Machinery & Materials , Daejeon 34103 , South Korea
| | - Sanghoon Ji
- Korea Institute of Civil Engineering and Building Technology , Goyang 10223 , South Korea
| | - Jeong Hwan Kim
- Department Nano Manufacturing Technology , Korea Institute of Machinery & Materials , Daejeon 34103 , South Korea
- Department of Advanced Material Engineering , Hanbat National University , Daejeon 34158 , South Korea
| | - Jeung Ku Kang
- Department Materials Science and Engineering , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , South Korea
- Department of Energy, Environment, Water and Sustainability , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , South Korea
| | - WooChul Jung
- Department Materials Science and Engineering , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , South Korea
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47
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Kim JH, Chern ZY, Yoo S, deGlee B, Wang J, Liu M. Unraveling the Mechanism of Water-Mediated Sulfur Tolerance via Operando Surface-Enhanced Raman Spectroscopy. ACS APPLIED MATERIALS & INTERFACES 2020; 12:2370-2379. [PMID: 31845795 DOI: 10.1021/acsami.9b17294] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
While several proton-conducting anode materials have shown excellent tolerance to sulfur poisoning, the mechanism is still unclear due largely to the inability to probe miniscule amounts of sulfur-containing species using conventional surface characterization techniques. Here we present our findings in unraveling the mechanism of water-mediated sulfur tolerance of a proton conductor under operating conditions empowered by surface-sensitive, operando surface-enhanced Raman spectroscopy (SERS) coupled with impedance spectroscopy. Contrary to the conventional view that surface-adsorbed sulfur is removed mainly by oxygen anions, it is found that -SO4 groups on the surface of the proton conductor are converted to SO2 by a water-mediated process, as confirmed by operando SERS analysis and density functional theory (DFT)-based calculations. The combination of operando SERS performed on a model electrode and theoretical computation offers an effective approach to investigate into complex mechanisms of electrode processes in various electrochemical systems, providing information vital to achieve the rational design of better electrode materials.
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Affiliation(s)
- Jun Hyuk Kim
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332-0245 , United States
| | - Zhao-Ying Chern
- Department of Chemistry , National Taiwan Normal University , 88, Section 4, Ting-Zhou Road , Taipei 11677 , Taiwan , R.O.C
| | - Seonyoung Yoo
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332-0245 , United States
| | - Ben deGlee
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332-0245 , United States
| | - Jenghan Wang
- Department of Chemistry , National Taiwan Normal University , 88, Section 4, Ting-Zhou Road , Taipei 11677 , Taiwan , R.O.C
| | - Meilin Liu
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332-0245 , United States
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48
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Cyril PH, Saravanan G. Development of advanced materials for cleaner energy generation through fuel cells. NEW J CHEM 2020. [DOI: 10.1039/d0nj03746j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The use of fuel cells in the transportation sector holds promise as a sustainable option for the generation of cleaner energy along with cumulative lesser GHG emissions.
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Affiliation(s)
- Priscilla Hyacinth Cyril
- Chennai Zonal Centre, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), CSIR-Madras Complex
- Chennai-600 113
- India
| | - Govindachetty Saravanan
- Chennai Zonal Centre, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), CSIR-Madras Complex
- Chennai-600 113
- India
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49
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Cho A, Hwang B, Han JW. Development of Ni-based alloy catalysts to improve the sulfur poisoning resistance of Ni/YSZ anodes in SOFCs. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00815j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Alloying Au into Ni surfaces provides a way to alleviate sulfur poisoning in the anode of solid oxide fuel cells.
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Affiliation(s)
- Ara Cho
- Department of Chemical Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang
- Republic of Korea
| | - Bohyun Hwang
- Department of Chemical Engineering
- University of Seoul
- Seoul 02504
- Republic of Korea
| | - Jeong Woo Han
- Department of Chemical Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang
- Republic of Korea
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50
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Catalytic Upgrading of a Biogas Model Mixture via Low Temperature DRM Using Multicomponent Catalysts. Top Catal 2019. [DOI: 10.1007/s11244-019-01216-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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