SENSORS AND ACTUATORS B-CHEMICAL
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2025
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IF 7.7
Ying Qian,Jie Zou,Xiaoqing Jiang,Jie Wang,Juan Zhou,Chu Cheng,Xin Zhang,Wenming He,Qinghui Jin,Jiawen Jian
Yttria-stabilized zirconia (YSZ)-based amperometric humidity sensors are highly promising for in situ detection of high-temperature flue ducts due to their excellent stability and durability under extreme conditions. However, selectivity remains challenging due to the co-electrolysis of H 2 O and CO 2 , as these compounds have similar electrolysis voltages. In this study, LaFeO 3 is proposed as a sensing electrode to reduce CO 2 electrolysis and improve selectivity in amperometric humidity sensors. Analysis indicates that the improved selectivity is likely due to LaFeO 3 ’s lower electrochemical activity. Furthermore, the proposed sensor exhibits good repeatability and acceptable long-term stability for high-temperature humidity detection.
研究领域:
材料科学
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传感器技术
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Changyang Liu,Shuting Li,Jianquan Gao,Liuzhen Bian,Yunting Hou,Lijun Wang,Jun Peng,Jinxiao Bao,Xiwen Song,Shengli An
The development of cathode materials with high catalytic activity and low cost is a challenge for CO2 electrolysis based on solid oxide electrolysis cells. Herein, we report a low-cost and highly active metallic Fe nanoparticle-decorated Ruddlesden-Popper (La, Sr)FeO4+δ cathode catalyst (Fe-RPLSF), which shows a high oxygen vacancy concentration and robust CO2 reduction rate. At 850 °C, the current density of the electrolysis cell with the Fe-RPLSF cathode reaches −1920 mA cm–2 at a voltage of 1.5 V, and the Faraday efficiency is as high as 100%. The polarization resistance at low frequency (0.1–10 Hz), which is the rate-limit step for CO2 electrolysis, significantly decreases with the exsolved Fe nanoparticles because of improved CO2 dissociative adsorption. Moreover, our electrolysis cell demonstrates acceptable short-term stability for direct CO2 electrolysis.
研究领域:
材料科学
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能源化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
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2024
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IF 8.1
Shun Wang,Wen Jiang,Yifeng Zheng,Guoping Xiao
Surface and interface engineering as an efficient and controllable strategy in designing electrode structure has been widely investigated for achieving high catalyst activity and durability of robust electrodes in solid oxide cells (SOCs). The constructed heterojunction structures favor expedited charge transfer and promote the catalytic reaction. Anti-coking La 0.75 Sr 0.25 Cr 0.5 Mn 0.5 O 3-δ (LSCM)-based fuel electrodes are considered as promising candidates for alternative Ni-based cermet electrodes in solid oxide electrolysis cell (SOEC), however, they suffer from insufficient electrocatalytic activity for CO 2 electrolysis. Herein, Mn-containing Pr 0.6 Sr 0.4 FeO 3-δ (Pr 0.6 Sr 0.4 Fe 0.8 Mn 0.2 O 3-δ , PSFM) nanoparticles with excellent catalyst activity are synthesized and epitaxially grown on the surface of LSCM via infiltration technique. The spontaneous connected interface can provide direct tunnel for oxygen ion and electron transport along the (110) plane of LSCM. Meanwhile, this interface promotes an increase in oxygen vacancies and enhances both surface oxygen exchange and bulk oxygen diffusion capacities. These improvements are advantageous for CO 2 adsorption and carbonate dissociation at three phase boundaries (TPBs), leading to a significant enhancement in the kinetics of CO 2 reduction reaction. The electrolyte-supported single with PSFM/La 0.75 Sr 0.25 Cr 0.5 Mn 0.5 O 3-δ -Gd 0.1 Ce 0.9 O 2-δ (LSCM-GDC) fuel electrode exhibits an impressive current density of 1.09 A cm −2 at the applied voltage of 1.5 V and 800 °C, which increases by approximately 336 % than that of LSCM-GDC. In addition, the atomic arrangement enables in-situ formation of PSFM by trapping of surface Sr/Mn atoms on the LSCM surface, avoiding Sr segregation and enhancing the resistance to sulfur poisoning. This study demonstrates a strategy for achieving the enhanced CO 2 electrolysis performance and sulfur tolerance by engineering highly active interface.
研究领域:
材料科学
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能源化学
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催化反应
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2021
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IF 5.816
Qingxue Liu,Yuefeng Song,Rongtan Li,Houfu Lv,Weicheng Feng,Yuxiang Shen,Xiaomin Zhang,Guoxiong Wang,Xinhe Bao
CO 2 electrolysis through solid oxide electrolysis cells (SOECs) is a promising strategy for converting CO 2 to useful fuels and chemicals powered by renewable energy. Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3-δ (BSCF) is a widely-investigated anode material of SOEC on account of its high and catalytic activity . However, its poor stability under CO 2 atmosphere limits its application as cathode in CO 2 electrolysis. Herein, we develop a vanadium-doped BSCF material Ba 0.5 Sr 0.5 (Co 0.8 Fe 0.2 ) 1-x V x O 3-δ (BSCFV x ) for SOEC cathode. The doping of V into B site of BSCF decreases the basicity of perovskite oxide and increases its stability under CO 2 atmosphere, thus improving the CO 2 electrolysis performance. Compared to BSCF, the cell of BSCFV 0.01 cathode shows a better tolerance to CO 2 and achieves 48.3% increase in current density at 1.6 V and 800 °C.
研究领域:
材料科学
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能源化学
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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2023
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IF 9.5
Chen Wang,Yan Zhu,Yihan Ling,Yansheng Gong,Rui Wang,Huanwen Wang,Jun Jin,Ling Zhao,Beibei He
Solid oxide electrolysis cells (SOECs) show great promise in converting CO2 to valuable products. However, their practicality for the CO2 reduction reaction (CO2RR) is restricted by sluggish kinetics and limited durability. Herein, we propose a novel medium-entropy perovskite, Sr2(Fe1.0Ti0.25Cr0.25Mn0.25Mo0.25)O6−δ (SFTCMM), as a potential electrode material for symmetrical SOEC toward CO2RR. Experimental and theoretical results unveil that the configuration entropy of SFTCMM perovskites contributes to the strengthened metal 3d–O 2p hybridization and the reduced O 2p bond center. This variation of electronic structure benefits oxygen vacancy creation and diffusion as well as CO2 adsorption and activation and ultimately accelerates CO2RR and oxygen electrocatalysis kinetics. Notably, the SFTCMM-based symmetrical SOEC delivers an excellent current density of 1.50 A cm–2 at 800 °C and 1.5 V, surpassing the prototype Sr2Fe1.5Mo0.5O6−δ (SFM, 1.04 A cm–2) and most of the state-of-the-art electrodes for symmetrical SOECs. Moreover, the SFTCMM-based symmetrical SOEC demonstrates stable CO2RR operation for 160 h.
研究领域:
材料科学
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能源化学
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表面科学
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产品关联
DOI
PubMed
高影响因子
Materials Science and Engineering B-Advanced Functional Solid-State Materials
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2025
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IF 4.6
Yangyang Zhao,Haowei Li,Xiaoyu Wang,Tao Cong,Yijian Wang,Hesheng Zheng,Zhongyi Zhao,Xingchen Feng,Juntao Feng,Pei Wang,Kai Yang,Xifeng Ding
Solid oxide electrolysis cells (SOECs), featuring high current density and Faradaic efficiency, have been extensively recognized for CO 2 electrolysis abilities. However, it is a challenge to find high performance electrode materials with excellent catalytic activity and preferable stability. Herin, hetero-structured perovskite with exsolved Co-Fe nanoparticles is developed via in - situ reduction of the (Ba 0.9 K 0.1 ) 0.9 Co 0.5 Fe 0.4 Nb 0.1 O 3- δ ((BK) 0.9 CFNb). The corresponding SOEC R-(BK) 0.9 CFNb/LSGM/LSCF achieves excellent electrochemical performance with a current density of 0.813 A cm −2 at 1.5 V and 800 °C, which is 30 % higher than the counterpart with untreated (BK) 0.9 CFNb cathode. Its high catalytic activity is attributed to electron feeding effect of in situ exsolved Co-Fe nanoparticles and enhanced CO 2 adsorption with high concentration of oxygen vacancies in perovskite substrate surface. Moreover, the R-(BK) 0.9 CFNb-cell shows much better stability than parent (BK) 0.9 CFNb-cell, which is ascribed to the structural anchoring of the alloy nanoparticles. This study provide an attractive strategy for the future development of SOECs.
研究领域:
材料科学
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能源化学
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产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
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2023
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IF 8.4
Menglin Wu,Jiupai Ni,Chengsheng Ni
In situ exsolution of nanoparticles has been reported to be an efficient path to optimize CO2 electrolysis performance. Herein, a Ce/Co co-doped SrFeO3-δ (SF) can achieve the co-exsolution of CeO2 and Co–Fe alloy in 5% H2 at 800 °C. A small amount (<10%) of Ce-doped SF cannot stabilize the perovskite structure in a reducing atmosphere. Sr0.9Ce0.1Fe0.9Co0.1O3 (10Ce10CoF) and Sr0.95Ce0.05Fe0.9Co0.1O3 (5Ce10CoF) as symmetric electrodes of solid oxide electrolysis cells showed an excellent electrolysis performance at 800 °C for CO2 electrolysis. The current densities of the cells with 5Ce10CoF and 10Ce10CoF reached 0.98 and 1.30 A cm–2 under a bias of 1.3 V after a 48 h durability test for CO2 electrolysis, respectively, and the performance difference, however, may be due to CeO2 being more easily exsolved from the 10Ce10CoF lattice. We also investigated the role of the exsolved CeO2 and oxygen vacancy (VO) in determining the CO2 electrolysis performance via theoretical calculation. In this work, we designed a novel strategy to achieve the exsolution of CeO2 and Co–Fe alloy via reduction treatment and showed an outstanding CO2 electrolysis performance.
研究领域:
材料科学
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化学工程
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电化学
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2023
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IF 5.2
Yuan Tan,Jiangcheng Tang,Caichen Yang,Yunfeng Tian,Ziling Wang,Jian Pu,Bo Chi
The double perovskite (Pr 0.5 Ba 0.5 ) 1.8 Fe 1.8 Mn 0.2 O 5-δ decorated with in situ exsolved Fe nanoparticles (Fe@PBFM) was used as the cathode in a solid oxide electrolysis cell (SOEC) to convert CO 2 to CO and exhibited high efficiency and stability. This catalyst is synthesized from the simple perovskite (Pr 0.5 Ba 0.5 ) 0.9 Fe 0.9 Mn 0.1 O 3-δ (PBFM) by annealing it under an H 2 -N 2 atmosphere at 850 °C for 15 h. The cell fabricated with the Fe@PBFM cathode shows a higher current density of 1.6 A/cm 2 at 850 °C and 1.8 V than the cell with the unreduced PBFM. The increased current density can be attributed to the in situ exsolved Fe nanoparticles and generation of the Fe@PBFM double perovskite. Furthermore, the cell containing this active catalyst exhibits stable CO 2 electrolysis performance for 100 h at a stable voltage of 1.3 V, suggesting that Fe@PBFM is an attractive candidate as SOEC cathode for CO 2 electrolysis.
研究领域:
材料科学
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能源化学
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产品关联
DOI
高影响因子
Nature Communications
·
2021
·Vol. 12
·期 1
·1-11
·
IF 14.919
Lv Houfu,Lin Le,Zhang Xiaomin,Li Rongtan,Song Yuefeng,Matsumoto Hiroaki,Ta Na,Zeng Chaobin,Fu Qiang,Wang Guoxiong,Bao Xinhe
Metal nanoparticles anchored on perovskite through in situ exsolution under reducing atmosphere provide catalytically active metal/oxide interfaces for CO 2 electrolysis in solid oxide electrolysis cell. However, there are critical challenges to obtain abundant metal/oxide interfaces due to the sluggish diffusion process of dopant cations inside the bulk perovskite. Herein, we propose a strategy to promote exsolution of RuFe alloy nanoparticles on Sr 2 Fe 1.4 Ru 0.1 Mo 0.5 O 6− δ perovskite by enriching the active Ru underneath the perovskite surface via repeated redox manipulations. In situ scanning transmission electron microscopy demonstrates the dynamic structure evolution of Sr 2 Fe 1.4 Ru 0.1 Mo 0.5 O 6− δ perovskite under reducing and oxidizing atmosphere, as well as the facilitated CO 2 adsorption at RuFe@Sr 2 Fe 1.4 Ru 0.1 Mo 0.5 O 6− δ interfaces. Solid oxide electrolysis cell with RuFe@Sr 2 Fe 1.4 Ru 0.1 Mo 0.5 O 6− δ interfaces shows over 74.6% enhancement in current density of CO 2 electrolysis compared to that with Sr 2 Fe 1.4 Ru 0.1 Mo 0.5 O 6− δ counterpart as well as impressive stability for 1000 h at 1.2 V and 800 °C.
研究领域:
材料科学
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化学工程
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能源技术
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产品关联
DOI
PubMed
高影响因子
Journal of Energy Chemistry
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2023
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IF 13.1
Zhengrong Liu,Jun Zhou,Yueyue Sun,Xiangling Yue,Jiaming Yang,Lei Fu,Qinyuan Deng,Hongfei Zhao,Chaofan Yin,Kai Wu
Solid oxide electrolysis cell (SOEC) could be a potential technology to afford chemical storage of renewable electricity by converting water and carbon dioxide. In this work, we present the Ni-doped layered perovskite oxides, (La 4 Sr n −4 ) 0.9 Ti 0.9 n Ni 0.1 n O 3 n +2 with n = 5, 8, and 12 (LSTNn) for application as catalysts of CO 2 electrolysis with the exsolution of Ni nanoparticles through a simple in-situ growth method. It is found that the density, size, and distribution of exsolved Ni nanoparticles are determined by the number of n in LSTNn due to the different stack structures of TiO 6 octahedra along the c axis. The Ni doping in LSTNn significantly improved the electrochemical activity by increasing oxygen vacancies, and the Ni metallic nanoparticles afford much more active sites. The results show that LSTNn cathodes can successfully be manipulated the activity by controlling both the n number and Ni exsolution. Among these LSTNn (n = 5, 8, and 12), LSTN8 renders a higher activity for electrolysis of CO 2 with a current density of 1.50A cm −2 @2.0 V at 800 °C It is clear from these results that the number of n in (La 4 Sr n −4 ) 0.9 Ti 0.9 n Ni 0.1 n O 3 n +2 with Ni-doping is a key factor in controlling the electrochemical performance and catalytic activity in SOEC.
研究领域:
材料科学
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电化学
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产品关联
DOI
高影响因子
Energy & Environmental Science
·
2019
·Vol. 12
·期 8
·2455-2462
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IF 33.25
Zhenglei Yin,Hanqing Peng,Xing Wei,Huan Zhou,Jun Gong,Mingming Huai,Li Xiao,Gongwei Wang,Juntao Lu,Lin Zhuang
The electrochemical conversion of CO2 to fuels or chemicals is an attractive approach that can combine sustainable energy utilization and carbon recycling, but its practicability is still vague, because the CO2 reduction reaction (CO2RR) has hitherto been mostly studied in electrolyte solutions, with small current densities limited by the solubility of CO2. An important and urgent task is thus to develop CO2 electrolyzers that can demonstrate the feasibility of the large-scale conversion of CO2, in particular analogs of water electrolyzers using polymer electrolyte based gas-diffusion electrodes. Here we report a high-performance CO2 electrolyzer making use of alkaline polymer electrolytes (APEs). A highly conductive and stable APE, quaternary ammonia poly(N-methyl-piperidine-co-p-terphenyl) (QAPPT), was applied both as the membrane separator and the ionomer impregnating the gas-diffusion electrodes. Dry CO2 was fed into the Au cathode, with a faradaic efficiency of CO production (COFE) over 85%, and the oxygen evolution reaction (OER) occurred at the IrO2 anode fed with pure water. The cell was operated at temperatures up to 80 °C, and the current density reached 0.5 A cm−2 at 3 V at 60 °C. The stability of this electrolyzer was tested under 0.1 A cm−2, and the cell voltage remained stable at 2.25 V over 100 h, with the COFE staying at 90–95%.
研究领域:
电化学
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可再生能源
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材料科学
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环境工程
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2021
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IF 13.273
Debo He,Wenji Ruan,Jibiao Li,Jiupai Ni,Chengsheng Ni
The large-scale integration of intermittent renewable energies into the power grid could reduce the CO 2 emission from the combustion of fossil fuel, but it requires energy storage techniques to balance the energy production and demand. The electrolysis of CO 2 that converting electricity into chemicals/fuels provides a sustainable way of energy storage and CO 2 reduction. Solid oxide electrolysis cell (SOEC) operating at around 800 °C was able to provide highly efficient transformation of CO 2 because the high temperature was able to decrease the energy demand and increase the activation of CO 2 than room temperature electrolysis. In this study, Mo-doped ferrite perovskite , La 0.55 Sr 0.45 Fe 0.85 Mo 0.15 O 3 , was studied as the cathode of an SOEC for the direct electrolysis of CO 2 at 800 °C. Cell with La 0.55 Sr 0.45 Fe 0.85 Mo 0.15 O 3 cathode showed a significantly higher current density during CO 2 electrolysis than the one with La 0.55 Sr 0.45 FeO 3 cathode. Compared with the parent La 0.55 Sr 0.45 FeO 3 cathode that will subject to a superficial decomposition into Fe 0 and SrO or SrCO 3 at an elongated cathodic bias of − 1.4 V, Mo-doping will induce the production of Ruddlesden-Popper phase ( e.g. (La,Sr) 2 (Mo,Fe)O 4 , Fe-Mo-O oxides and Fe 0 ). La 0.55 Sr 0.45 Fe 0.85 Mo 0.15 O 3 cathode was found to an unobvious current decrease at − 1.1 V, but a cell degradation was found under a high bias of − 1.4 V. During the 97 h’ aging under a cathodic bias (−1.4 V), the reduced molybdenum cation in La 0.55 Sr 0.45 Fe 0.85 Mo 0.15 O 3 was found to be less mobile than Fe 3+/2+ , La 3+ or Sr 2+ , and the perovskite with Fe-deficit region were also found to be important for the activation of CO 2 and dissociation of CO in the electrochemical process.
研究领域:
材料科学
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电化学
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能源存储
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环境科学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）