Article
Nanoscience & Nanotechnology
Yunjie Gou, Guangdong Li, Rongzheng Ren, Chunming Xu, Jinshuo Qiao, Wang Sun, Kening Sun, Zhenhua Wang
Summary: This study demonstrates an effective optimized strategy for designing high-performance cathodes by doping Pr into BaFeO3-delta perovskites, enhancing electrochemical activity and CO2 resistance. The appropriate content of Pr substitution increases the oxygen vacancy concentration, promotes reactions on the oxygen electrode, and shows excellent electrochemical performance.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Rui Guo, Tianmin He
Summary: This study successfully prepared a high-entropy perovskite oxide BSZCYYbD and applied it to protonic ceramic fuel cells (PCFCs) with favorable results. The BSZCYYbD exhibits high proton conductivity and structural stability, providing strong support for the design of superior proton-conducting electrolytes.
ACS MATERIALS LETTERS
(2022)
Review
Chemistry, Physical
Dongyue Zhao, Haitao Song, Jun Liu, Qiuqiao Jiang, Xingang Li
Summary: The NSR concept has been developed over the past two decades as a promising DeNO(x) technique tailored for light-duty diesel vehicles, but its over-reliance on Pt has limited its wide application. La-based perovskites show great potential as efficient, economical, and durable alternatives to Pt in the NSR process, with their stable structure and redox properties.
Article
Chemistry, Multidisciplinary
Zongbao Zhang, Ran Ji, Xiangkun Jia, Shu-Jen Wang, Marielle Deconinck, Elena Siliavka, Yana Vaynzof
Summary: This study demonstrates the successful fabrication of compact ultra-thin CsPbI3 perovskite films using a co-evaporation process. The films with a thickness of 10 nm exhibit high power conversion efficiency in a device structure of glass/ITO/PTAA/perovskite/PCBM/BCP/Al/Ag.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Weiguang Chi, Sanjay K. Banerjee
Summary: This Review analyzes the issues and advantages of perovskite quantum dots (QDs) in terms of purification, device fabrication, light absorption, charge transport, and stability. Promising strategies to enhance perovskite QDs and QD-based solar cells are elucidated based on exchange chemistry, passivation engineering, and structure engineering, paving the way for further development in this area.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Multidisciplinary Sciences
Xinyuan Du, Jiapu Li, Guangda Niu, Jun-Hui Yuan, Kan-Hao Xue, Mengling Xia, Weicheng Pan, Xiaofei Yang, Benpeng Zhu, Jiang Tang
Summary: Lead halide perovskites have shown promising applications in optoacoustic transducers with improved thermal properties and high performance. By optimizing the thermal properties of perovskites, the researchers achieved record values for bandwidth and conversion efficiency in optoacoustic transducers.
NATURE COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Manh Hoang Tran, Taehyun Park, Jaehyun Hur
Summary: Calcium stannate, as an inorganic perovskite material, has wide bandgap and unique structural characteristics, making it suitable for applications in photocatalysis, gas sensors, and capacitors. By optimizing the thickness of CaSnO3 absorber layer and operating bias, the performance of the UV photodetector was enhanced, showing high specific detectivity and stable photoresponse under 254nm UV illumination.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Yaochang Yue, Rongshen Yang, Weichao Zhang, Qian Cheng, Huiqiong Zhou, Yuan Zhang
Summary: This study reports a method using cesium cyclopropane acids as compound introducers to prepare moisture-insensitive CsPbI2Br-based inorganic halide perovskites under ambient air. The crystallization quality and moisture tolerance of CsPbI2Br are significantly improved with this approach. The research results are important for improving the moisture stability of inorganic halide perovskites.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Liyuan Tian, Ze Zhang, Sheng Liu, Guoran Li, Xueping Gao
Summary: Transition metal oxides, especially high-entropy oxides (HEOs), have shown great potential as host materials for sulfur in lithium-sulfur (Li-S) batteries due to their strong polysulfide adsorption and catalytic effect. In this study, HEO nanofibers were designed as bidirectional catalytic hosts for sulfur, promoting both the reduction of soluble intermediates and the re-oxidation of insoluble products. The introduction of multiple metal elements effectively modulates the binding strength of soluble polysulfides, enabling the HEO nanofibers to act as bidirectional electrocatalysts for the conversion processes between soluble polysulfides and insoluble Li2S, resulting in high areal capacity and good cycle stability.
Article
Chemistry, Physical
Jia Xu, Qiaohui Wu, Yiwu He, Meina Cui, Huifang Han, Huijing Liu, Jianxi Yao
Summary: In this study, defect-free Cs2PbI2(SCN)(2) perovskite films were fabricated using an intermediate-modulated crystallization process and post-treated with PTABr to avoid direct contact with the hole transport layer. The resulting 2D Cs2PbI2(SCN)(2) based perovskite solar cells showed reproducible photovoltaic performance with a champion efficiency of 4.7%, which is the highest reported to date.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Applied
Jung Jae Do, Jong Ryeol Kwon, Donghan Kim, Jae Woong Jung
Summary: This study presents a defect passivation approach using coumarin dye as a multi-functional passivating agent of perovskite films to boost power conversion efficiency and operating stability of PSCs. The incorporation of coumarin dye improves the film morphology, enhances carrier extraction/transport, and suppresses trap-assisted recombination in the perovskite films. The optimized device demonstrates impressive reliability and practical applicability, maintaining over 90% of its initial PCE after being exposed to continuous indoor lighting irradiation for 2000 hours.
Article
Optics
Nikhil Shrivastav, Savita Kashyap, Jaya Madan, Mustafa K. A. Mohammed, M. Khalid Hossain, Rahul Pandey
Summary: This study proposes all-perovskite tandem solar cells with suitable perovskite partners as active materials in both the upper and the lower sub-cell. The tandem short-circuit current density (J(SC)) and current density-voltage (J-V) curve are studied to obtain an optimized efficiency of 33.8%. These results will pave the way for the development of highly efficient and low-cost monolithic two-terminal tandem devices in the future.
Article
Environmental Sciences
Lu Qiu, Dengkui Li, Hanliang Li, Zhaoyong Ren, Zhenye Zhu, Feng Ouyang, Mingxin Guo
Summary: Research on Fe-modified Mn-Co-Ce/TiO2/SiO2 catalysts for low-temperature NH3-SCR revealed that the addition of Fe can enhance the catalyst's resistance to sulfur and water poisoning, improving the stability and durability of the catalyst.
Article
Chemistry, Multidisciplinary
G. Krishnamurthy Grandhi, Basheer Al-Anesi, Hannu Pasanen, Harri Ali-Loytty, Kimmo Lahtonen, Sari Granroth, Nino Christian, Anastasia Matuhina, Maning Liu, Alex Berdin, Vincenzo Pecunia, Paola Vivo
Summary: Lead-free perovskite-inspired materials (PIMs) are being explored for indoor photovoltaics (IPVs) due to their low toxicity and air stability. In this study, researchers demonstrated the potential of a quaternary PIM, Cu2AgBiI6 (CABI), for IPVs by controlling the film crystallization dynamics through additive engineering. By adding hydroiodic acid (HI), they improved the surface coverage and crystalline domain size of the CABI films, resulting in photovoltaic cells with a power conversion efficiency of 1.3% under 1 sun illumination and 4.7% under indoor white light-emitting diode lighting. This work highlights the high potential of CABI for IPVs and suggests the possibility of further performance improvements through effective passivation strategies.
Article
Engineering, Environmental
Zhan Shi, Fang Dong, Zhicheng Tang, Xiuyan Dong
Summary: To enhance the sulfur resistance of 3DOM LaCoO3 perovskite catalysts, strontium (Sr) and manganese (Mn) elements were doped. The co-doping of Sr and Mn resulted in superior catalytic performance for benzene combustion and significantly improved the sulfur resistance. The research provides valuable reference for the development of efficient catalysts for industrial degradation of benzene.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Meng Zhang, Junfeng Zhang, Zeling Zhou, Qingde Zhang, Yisheng Tan, Yizhuo Han
Summary: The effects of calcination atmospheres on Ni/ZrO2 catalysts for dry reforming of methane were studied, showing that the catalyst calcined in O-2 atmosphere exhibited the highest Ni dispersion and catalytic activity. Additionally, the Ni species on the catalysts could stabilize metastable tetragonal ZrO2 with more oxygen vacancies, contributing to improved catalytic performance.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Faen Song, Xiaojing Yong, Xuemei Wu, Wei Zhang, Qingxiang Ma, Tiejian Zhao, Minghui Tan, Zhongshan Guo, Heng Zhao, Guohui Yang, Noritatsu Tsubaki, Yisheng Tan
Summary: The capsule catalyst FeMn@HZSM-5 was shown to effectively reduce CO2 formation and increase olefins selectivity in Fischer-Tropsch to olefins (FTO) reaction, outperforming other physically mixing catalysts. The HZSM-5 shell played a key role in affecting H2O diffusion and suppressing the water-gas shift reaction.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Energy & Fuels
Jiaqian Yang, Nana Gong, Liyan Wang, Yingquan Wu, Tao Zhang, Chunyang Zeng, Yisheng Tan
Summary: This study explored the feasibility of using surfactant-assisted CuCo catalysts for ethanol synthesis. The results showed that the surfactant CTAB could inhibit the aggregation of Cu and Co species and retard their reduction, leading to highly dispersed metal particles and optimal electronic environment. A strong synergistic effect occurred at the interface of Cu+-Co-0 species on the CuCo-0.10C/(Si) catalyst, facilitating the efficient conversion of CO to ethanol. This research is of great importance for guiding the rational design of CuCo-based catalysts.
Article
Energy & Fuels
Zixuan Ma, Fenghai Cao, Yuhao Yang, Liyan Wang, Tao Zhang, Minghui Tan, Guohui Yang, Yisheng Tan
Summary: The degree of nonstoichiometric spinel of ZnCrOx oxides was finely tuned through modulating the ratio of Zn/Cr, which significantly influenced the catalytic behaviors of ZnCrOx/ZSM-5 catalysts for CO hydrogenation to aromatics. The increase of nonstoichiometric spinel led to an increase in oxygen vacancies and the enhancement of Zn-Cr synergistic effect, promoting the activation of H-2 and CO and dramatically increasing CO conversion. The action of ZnO and oxygen vacancies was identified as the key factor for CO pulling in ZnCrOx oxide and ZSM-5 catalyzed STA reaction.
Article
Energy & Fuels
Yangyang Liu, Baojian Chen, Rui Liu, Wenqi Liu, Xinhua Gao, Yisheng Tan, Zhenzhou Zhang, Weifeng Tu
Summary: Investigation of different supports on the structure and catalytic performance of iron catalysts shows that ZrO2 supported catalysts are more beneficial for olefin selectivity and chain growth. The support regulates the composition of the iron oxide and iron carbide phases, leading to the formation of the highest content of Fe5C2 on the catalyst surface and inhibiting the hydrogenation of olefins.
Article
Engineering, Chemical
Zixuan Ma, Minghui Tan, Fenghai Cao, Yuhao Yang, Nana Gong, Yingquan Wu, Junfeng Zhang, Guohui Yang, Yisheng Tan
Summary: In this study, the synergistic effect of ZnO and ZnCr2O4 was investigated by physical mixing, and it was found that the xZZC catalyst produced more adsorbed species and achieved enhanced pulling effect on CO conversion.
Article
Energy & Fuels
Kai Sun, Faen Song, Wenzhan Huang, Yu Tang, Yujie Zhang, Jian Zhang, Yuanyang Wang, Yisheng Tan
Summary: Ultrathin CuCoAl nanosheets were synthesized and used for ethanol and higher alcohols production via CO hydrogenation. The nanosheets exhibited high ethanol selectivity, with a high molar fraction of ethanol among the total alcohols. The uniform dispersion of CuCo NPs over the nanosheets and the presence of Cu+/(Cu0 + Cu+) played a positive role in ethanol selectivity.
Article
Chemistry, Applied
Zixuan Ma, Xiaoxing Wang, Xiaoling Ma, Minghui Tan, Guohui Yang, Yisheng Tan
Summary: This study investigated the direct conversion of syngas into aromatics using bifunctional catalysts coupling ZnCrOx oxides and H-ZSM-5 zeolites with different morphologies. The results showed that the CO conversion was affected by the Bronsted acid sites, and the combination of acidity and particle size influenced the aromatics selectivity and distribution. Different morphologies of H-ZSM-5 zeolites had different effects on the transfer of intermediate species and side reactions, leading to variations in the aromatics selectivity. TPAOH treatment on a specific H-ZSM-5 zeolite promoted olefins cyclization and increased the aromatics selectivity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Chemistry, Physical
Nana Gong, Yingquan Wu, Qingxiang Ma, Yisheng Tan
Summary: Stable F-T-based catalyst development in direct CO hydrogenation to higher alcohols remains challenging. In this study, CuFe/SiO2 catalysts treated with a piranha solution were prepared and evaluated. The treated catalyst showed higher alcohols' selectivity and stability due to the enrichment of hydroxyl groups on SiO2, anchoring the Cu-Fe active components and inhibiting hydrocarbon formation.
Article
Chemistry, Physical
Zhenzhou Zhang, Baojian Chen, Lingyu Jia, Wenqi Liu, Xinhua Gao, Jian Gao, Bo Meng, Yisheng Tan, Yurong He, Weifeng Tu, Yi-Fan Han
Summary: The role of Fe5C2 active species in CH4 formation during CO2 hydrogenation catalysis was investigated by manipulating Fe5C2 with a hydrophobic shell. The mechanism of CH4 formation was revealed to vary with the content of the hydrophobic shell through a combination of TPSR, in situ spectroscopies, and DFT calculations. The enhancement of H2O retention on the hydrophobic shell surface of Fe5C2 was found to inhibit the activation of CO2 by increasing energy barriers of C-C coupling reactions.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Nana Gong, Tao Zhang, Minghui Tan, Liyan Wang, Jiaqian Yang, Li Tan, Guohui Yang, Peng Wu, Yingquan Wu, Yisheng Tan
Summary: CO hydrogenation to isobutyl alcohol is a promising route for the transformation of CO to high value-added products. However, the synthesis of isobutyl alcohol is complex and requires harsh reaction conditions and complex catalysts. In this study, we successfully synthesized isobutyl alcohol under mild conditions using a simple Cu-ZrO2 catalyst. The optimized catalyst showed a high space-time yield and CO conversion, surpassing the state-of-the-art synthesis under harsh conditions. The decrease in Cu loading resulted in increased distribution of smaller Cu particles and clarified the structure-activity relationship of Cu-Zr interactions for isobutyl alcohol synthesis.
Article
Chemistry, Multidisciplinary
Yuhao Yang, Minghui Tan, Zixuan Ma, Hailun Geng, Qingde Zhang, Yisheng Tan
Summary: Fabricating MOFs with missing linker defects is a common method to enhance catalytic performances, but the stability of the defects should be investigated first. In this study, it was found that 3-phenylpropionaldehyde (3-PPA) could coordinate with the missing linker defects of UiO-66, indicating the instability of the defects. 3-PPA acted as a molecular patch to modify the Rh/UiO-66 catalyst, repairing the open Zr-6 sites and significantly improving aldehyde selectivity (from 50.0% to 89.6%) in 1-hexene hydroformylation.
CHEMICAL COMMUNICATIONS
(2023)
Review
Chemistry, Multidisciplinary
Shaopeng Tian, Huaping Ren, Mingshu Chen, Zongcheng Miao, Yisheng Tan
Summary: This mini review summarizes recent progress in syngas-based isobutanol synthesis and highlights the crucial role of cation distribution in Zn-Cr catalysts. The development of catalysts, strategies for aggravating cation distribution disorder, and quantitative methods for obtaining information on cation distribution are discussed. The physicochemical properties affected by cation distribution and the challenges associated with isobutanol synthesis are also addressed.
PROGRESS IN CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Xiujuan Gao, Junfeng Zhang, Faen Song, Qingde Zhang, Yizhuo Han, Yisheng Tan
Summary: Methanol and dimethyl ether (DME) serve as important platform compounds in the coal chemical, petrochemical, and fine chemical industries. The synthesis of methanol/DME has been industrialized, but with a production capacity exceeding market demand. To make better use of these compounds, the selective oxidation of methanol/DME to produce high value-added chemicals has gained significant attention for its green and environmentally friendly nature. This article provides a summary of recent advancements in the synthesis of formaldehyde, methyl formate, dimethoxymethane, and polyoxymethylene dimethyl ethers through selective oxidation of methanol/DME. The article also explores the challenges and prospects in catalyst design and application, aiming to provide theoretical guidance for activating and cleaving C-O, C-H, or O-H bonds in other alcohol/ether molecules and low-carbon alkanes to synthesize high value-added chemicals.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Fenghai Cao, Nana Gong, Zixuan Ma, Xiaoxing Wang, Minghui Tan, Yingquan Wu, Yisheng Tan
Summary: This study prepared Rh-based catalysts with different crystalline phases and observed different metal-support interactions, resulting in varying selectivity towards methane, CO, and methanol.
CHEMICAL COMMUNICATIONS
(2022)
