燃料化学学报 Pub Date : 2024-08-01 DOI: 10.1016/S1872-5813(24)60445-7

Xinrui YU, Jinyu ZHANG, Haixing YANG, Siying CHONG, Guoguo LIU, Yajing ZHANG, Kangjun WANG

{"title":"Effect of the metal-support interaction in the Cu/ZnO catalyst on its performance in the hydrogenation of furfural to furfuryl alcohol","authors":"Xinrui YU, Jinyu ZHANG, Haixing YANG, Siying CHONG, Guoguo LIU, Yajing ZHANG, Kangjun WANG","doi":"10.1016/S1872-5813(24)60445-7","DOIUrl":"10.1016/S1872-5813(24)60445-7","url":null,"abstract":"<div>A series of Cu/ZnO catalysts were prepared by the coprecipitation method and the effect of Cu/Zn ratio on the strong metal support interaction (SMSI) as well as its relation to the catalytic performance of Cu/ZnO in the gaseous hydrogenation of furfural to furfuryl alcohol was investigated. The H2-TPR, XRD, SEM, TEM and XPS characterization results reveal that there exists the SMSI effect in the Cu/ZnO catalyst that influences the catalyst microstructure. ZnO support, acting as a geometric modifier on the active metal Cu particles, has a significant influence on the electronic state of the surface Cu species. The strength of SMSI is related to the Cu/Zn ratio and the SMSI strength of various Cu/ZnO catalysts follows the order of 20Cu/ZnO> 40Cu/ZnO> 60Cu/ZnO> 80Cu/ZnO. Under the same reaction conditions, the lifetime of the 20Cu/ZnO catalyst with a furfural conversion of above 80% is only 5 h, in comparison with the lifetime of 28 h for the 60Cu/ZnO catalyst. That is, appropriate SMSI can enhance the stability of the Cu/ZnO catalyst in the hydrogenation of furfural to furfuryl alcohol, whereas excessive SMSI is detrimental to the catalyst activity.</div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 8","pages":"Pages 1045-1056"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141950161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of hydrothermal pretreatment on the catalytic performance of Zn/HZSM-5 catalysts for ethylene aromatization reaction 水热预处理对乙烯芳构化反应 Zn/HZSM-5 催化剂催化性能的影响

燃料化学学报 Pub Date : 2024-08-01 DOI: 10.1016/S1872-5813(24)60448-2

Jia-bei SHAO , Bai-chao LI , Mei DONG , Wei-bin FAN , Zhang-feng QIN , Jian-guo WANG

{"title":"The effect of hydrothermal pretreatment on the catalytic performance of Zn/HZSM-5 catalysts for ethylene aromatization reaction","authors":"Jia-bei SHAO , Bai-chao LI , Mei DONG , Wei-bin FAN , Zhang-feng QIN , Jian-guo WANG","doi":"10.1016/S1872-5813(24)60448-2","DOIUrl":"10.1016/S1872-5813(24)60448-2","url":null,"abstract":"<div>To address the issue of coking and deactivation of Zn/HZSM-5 catalysts used for lightolefins aromatization, a high-temperature hydrothermalmethod was employed for catalyst pretreatment. The catalysts were characterized using XRD, N2 physical adsorption-desorption, NH3-TPD, Py-FTIR, XPS, and TG techniques. The effect of high-temperaturehydrothermal pretreatment on the catalytic performance and stability of the catalyst was investigated using ethylene aromatization as a probe reaction. The results showed that the Zn/HZSM-5 catalyst exhibited excellent catalytic performance after48 h of high-temperature hydrothermal pretreatment. Although the conversion of ethylene slightly decreased, the catalyst lifetime was significantly extended, increasing from 72to 216 h, while the aromatics selectivity remained above 60%. It was suggested that the hydrothermal treatment enhanced the interaction between ZnO species and Brønsted acid sites, promoting the generation of ZnOH+ species. This not only suppressed the hydrogen transfer reaction but also significantly enhanced the dehydrogenation performance of the catalyst, improving the selectivity towards hydrogen. Additionally, the catalyst exhibited increased carbon capacity and reduced carbon deposition rate after hydrothermal treatment, demonstrating excellent anti-coking properties.</div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 8","pages":"Pages 1079-1087"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141950162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Promoted stability of Cu/ZnO/Al2O3 catalysts formethanol production from CO2 hydrogenation by La modification 通过 La 改性提高 Cu/ZnO/Al2O3 催化剂在二氧化碳加氢制乙醇过程中的稳定性

燃料化学学报 Pub Date : 2024-08-01 DOI: 10.1016/S1872-5813(24)60438-X

Mengmeng NIU , Yanan JIANG , Xian ZHANG , Cuijuan ZHANG , Yuan LIU

{"title":"Promoted stability of Cu/ZnO/Al2O3 catalysts formethanol production from CO2 hydrogenation by La modification","authors":"Mengmeng NIU , Yanan JIANG , Xian ZHANG , Cuijuan ZHANG , Yuan LIU","doi":"10.1016/S1872-5813(24)60438-X","DOIUrl":"10.1016/S1872-5813(24)60438-X","url":null,"abstract":"<div>Deactivation of Cu/ZnO/Al2O3 catalysts in CO2 hydrogenation to methanol reaction is one of the main reasons limiting their application. We synthesized a series of La modified Cu/ZnO/Al2O3 catalysts by adding different contents of La to improve the stability. In the 100 h short-term stability test at 200 °C under 3 MPa with a GHSV of 12000 mL/(g·h), the unmodified Cu/ZnO/Al2O3 catalysts degraded obviously over 100 h. In sharp contrast, the stability was significantly promoted by the addition of La. The best activity was achieved with 5% La added samples (4% CO2 conversion and 85% methanol selectivity),which also showed impressive stability over 1000 h except about 17% deactivation during the initial 190−220 h. The X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) results revealed that the addition of 5% La improved the dispersion of Cu and Zn, inhibited the sintering of Cu, stabilized the Cu0/+ species and retarded oxidation of Cu in catalysts, which attributed to the high stability of the catalysts.</div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 8","pages":"Pages 1095-1102"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141950009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Theoretical calculations of pyridine adsorption on the surfaces of Ti, Zr, N doped graphene 掺杂 Ti、Zr 和 N 的石墨烯表面吡啶吸附的理论计算

燃料化学学报 Pub Date : 2024-08-01 DOI: 10.1016/S1872-5813(24)60440-8

Jucai WANG, Ke TANG, Xiaodi SUN, Xin HONG

{"title":"Theoretical calculations of pyridine adsorption on the surfaces of Ti, Zr, N doped graphene","authors":"Jucai WANG, Ke TANG, Xiaodi SUN, Xin HONG","doi":"10.1016/S1872-5813(24)60440-8","DOIUrl":"10.1016/S1872-5813(24)60440-8","url":null,"abstract":"<div>In this paper, the adsorption behavior of pyridine, a typical basic nitrogen compound in diesel oil, on Ti-doped, Zr-doped, N-doped and intrinsic graphene has been investigated by density functional methods. The corresponding adsorption energy, adsorption configurations, Mulliken charge transfer, differential charge density and density of states were discussed. The results show that doping graphene with metal atoms such as Ti or Zr can significantly obviously enhance the adsorption energy between pyridine and graphene surfaces, while non-metal N doping has a relatively minor effect. The magnitude of the adsorption energy of pyridine on the surfaces of graphene modified with different atoms follows the order: Ti-doped>Zr-doped>N-doped>intrinsic graphene. Pyridine interacts with Ti- or Zr-doped graphene through N−Ti, N−Zr and π−π interactions, while with N-doped and intrinsic graphene, it interacts via N−N, C−N and π−π interactions. There are significantelectron transfer and chemical bond formation between pyridine and metal-doped (Ti, Zr) graphene surfaces, indicating chemical adsorption. However, there is no chemical bond formation with non-metal N-doped graphene and intrinsic graphene, suggesting physical adsorption in these cases. Overall, pyridine exhibits more stable adsorption on the surfaces of Ti, Zr-doped graphene.</div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 8","pages":"Pages 1162-1172"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141950010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The promotional effects of ZrO2 modification on the activity and selectivity of Co/SiC catalysts for Fischer-Tropsch synthesis ZrO2 改性对用于费托合成的 Co/SiC 催化剂活性和选择性的促进作用

燃料化学学报 Pub Date : 2024-08-01 DOI: 10.1016/S1872-5813(24)60439-1

Min WANG , Shupeng GUO , Jinshan XU , Liuzhong LI , Congbiao CHEN , Zhongyi MA , Litao JIA , Bo HOU , Debao LI

{"title":"The promotional effects of ZrO2 modification on the activity and selectivity of Co/SiC catalysts for Fischer-Tropsch synthesis","authors":"Min WANG , Shupeng GUO , Jinshan XU , Liuzhong LI , Congbiao CHEN , Zhongyi MA , Litao JIA , Bo HOU , Debao LI","doi":"10.1016/S1872-5813(24)60439-1","DOIUrl":"10.1016/S1872-5813(24)60439-1","url":null,"abstract":"<div>Co/SiC catalysts have exhibited excellent performance in Fischer-Tropsch synthesis reaction. However, few research focuses on investigating the effect of SiC supports surface properties of on catalyst performance. In this study, ZrO2 was utilized to modify the SiC surface, leading to the preparation of a series of Co-ZrO2/SiC catalysts. The physicochemical properties of the catalyst were comprehensively analyzed by using N2 adsorption, XRD, H2-TPR, XPS analyses. Catalytic performance was evaluated using a fixed bed reactor, shedding light on the effect of ZrO2 modified SiC support on cobalt-based Fischer-Tropsch synthesis catalysts. The results indicated that ZrO2 surface modification on SiC resulted in an enhanced reduction degree of Co/SiC catalysts. Additionally, ZrO2 exhibited strong interaction with the amorphous phase on the SiC surface, thereby weakening the interaction between Co and the amorphous phase. This led to an increase in the electron density of cobalt species, consequently improving the selectivity of Co/SiC catalysts towards long-chain hydrocarbons.</div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 8","pages":"Pages 1088-1094"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141950008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of Ni0.6Cu0.4O/NC catalyst and its catalytic performance for hydrogen production from hydrolysis of ammonia borane 制备 Ni0.6Cu0.4O/NC 催化剂及其在硼烷氨水解制氢中的催化性能

燃料化学学报 Pub Date : 2024-08-01 DOI: 10.1016/S1872-5813(24)60436-6

Rong LI , Youhua ZUO , Junfeng HUA , Siyu HAO , Lixin XU , Mingfu YE , Chao WAN

引用次数: 0

Theoretical Study on the Pyrolysis Mechanism of the Lignin Dimer Model Compound Catalyzed by Alkaline Earth Metal Ions Ca2+ and Mg2+ 碱土金属离子 Ca2+ 和 Mg2+ 催化木质素二聚体模型化合物热解机理的理论研究

燃料化学学报 Pub Date : 2024-07-01 DOI: 10.1016/S1872-5813(24)60441-X

Jiang Xiaoyan , Li Yiming , Tang Li , Du Xiaojiao , Dai Lanhua , Hu Bin

{"title":"Theoretical Study on the Pyrolysis Mechanism of the Lignin Dimer Model Compound Catalyzed by Alkaline Earth Metal Ions Ca2+ and Mg2+","authors":"Jiang Xiaoyan , Li Yiming , Tang Li , Du Xiaojiao , Dai Lanhua , Hu Bin","doi":"10.1016/S1872-5813(24)60441-X","DOIUrl":"https://doi.org/10.1016/S1872-5813(24)60441-X","url":null,"abstract":"<div>It is essential to investigate the influence of alkaline earth metals on the pyrolysis mechanism and resulting products of lignin to enhance the efficient thermochemical conversion and utilization of lignin or biomass. In this study, the density functional theory method was used to simulate the pyrolytic reaction pathways of a β-O-4 type lignin dimer model compound (1-methoxy-2-(4-methoxyphenethoxy)benzene, mc) affected by alkaline earth metal ions Ca2+ and Mg2+. The computational findings suggest that Ca2+ and Mg2+ tend to combine with the oxygen atom at the Cβ position and the oxygen atom on the methoxy group of the lignin dimer model compound, forming stable complexes that modify the bond lengths of the Cα–Cβ and Cβ–O bonds and affect their pyrolysis energy barriers. During the catalytic pyrolysis process, the presence of Ca2+ and Mg2+ can promote the concerted decomposition reaction, leading to increased production of products like 1-methoxy-4-vinylbenzene, 2-methoxyphenol and catechol. Meanwhile, they can suppress homolytic cleavage reactions of the Cβ–O and Cα–Cβ bonds, thereby hindering the formation of other products such as 1-ethyl-4-methoxybenzene and 2-hydroxybenzaldehyde.</div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 7","pages":"Pages 959-966"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141478866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of B-site cations of MgX2O4 (X=Cr, Fe, Mn) spinels on the chemical looping oxidative dehydrogenation of ethane to ethylene MgX2O4（X=铬、铁、锰）尖晶石的 B 位阳离子对乙烷氧化脱氢成乙烯的化学循环的影响

燃料化学学报 Pub Date : 2024-07-01 DOI: 10.1016/S1872-5813(24)60434-2

Liang Xiaocen , Wang Xuemei , Xing Zifan , Mao Min , Song Da , Li Yang , Long Tao , Zhou Yuchao , Chen Peili , He Fang

{"title":"Impact of B-site cations of MgX2O4 (X=Cr, Fe, Mn) spinels on the chemical looping oxidative dehydrogenation of ethane to ethylene","authors":"Liang Xiaocen , Wang Xuemei , Xing Zifan , Mao Min , Song Da , Li Yang , Long Tao , Zhou Yuchao , Chen Peili , He Fang","doi":"10.1016/S1872-5813(24)60434-2","DOIUrl":"https://doi.org/10.1016/S1872-5813(24)60434-2","url":null,"abstract":"<div>Chemical looping oxidative dehydrogenation (CL-ODH) provides a multifunctional conversion platform that can take advantage of the selective oxidation of lattice oxygen in oxygen carrier to achieve high-valued ethane to ethylene conversion. In this study, we explored the effect of B-site element in MgX2O4 (X=Cr, Fe, or Mn) spinel-type oxygen carriers on the performance of ethane CL-ODH. The properties test and characterization of MgX2O4 spinel were tested by fixed bed and H2-TPR, O2-TPD, TG, in-situ Raman, SEM, and TEM. The results showed that because MgCr2O4 only released a small amount of adsorbed surface oxygen, it tended to catalyze the conversion of ethane to coke and hydrogen. MgFe2O4 facilitated the deep oxidation of ethane into CO2 by providing more surface lattice oxygen. Meanwhile, since a significant amount of bulk lattice oxygen was released by the MgMn2O4 oxygen carrier, it could burn hydrogen in a targeted manner to advance the reaction and increased ethylene’s selectivity. Thereby, MgMn2O4 achieved an ethane conversion of 73.72% with an ethylene selectivity of 81.46%. Furthermore, the MgMn2O4 catalyst demonstrated stable reactivity and an ethylene yield of about 62.00% in ethane CL-ODH over the 30 redox cycles. The screening tests indicated that the B-site elements in MgX2O4 spinel oxides could significantly influence their ability to supply lattice oxygen, thereby affecting their performance in ethane CL-ODH reaction.</div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 7","pages":"Pages 1006-1019"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141479910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Contributions of Photoionization Mass Spectrometry in the Study of Typical Solid Fuel Pyrolysis 光离子化质谱法在典型固体燃料热解研究中的最新贡献

燃料化学学报 Pub Date : 2024-07-01 DOI: 10.1016/S1872-5813(23)60411-6

Shen Yang , Cui Cunhao , Liu Haoran , Ren Hairong , Cai Jianghuai , Zhou Zhongyue , Qi Fei

引用次数: 0

Multi-site Co2P catalyst derived from soybean biomass for dehydrogenation of formic acid 用于甲酸脱氢的大豆生物质多位 Co2P 催化剂

燃料化学学报 Pub Date : 2024-05-29 DOI: 10.1016/S1872-5813(23)60410-4

Bixi WANG , Zeyu LIU , Yabei WU , Yanyan YANG , Song YANG , Xun WANG , Zi YE , Hongliang DONG , Feng ZHU , Huanhuan YU , Yingying LÜ , Zhongliang YU

{"title":"Multi-site Co2P catalyst derived from soybean biomass for dehydrogenation of formic acid","authors":"Bixi WANG , Zeyu LIU , Yabei WU , Yanyan YANG , Song YANG , Xun WANG , Zi YE , Hongliang DONG , Feng ZHU , Huanhuan YU , Yingying LÜ , Zhongliang YU","doi":"10.1016/S1872-5813(23)60410-4","DOIUrl":"https://doi.org/10.1016/S1872-5813(23)60410-4","url":null,"abstract":"<div>Formic acid (FA) is a sustainable liquid organic hydrogen carrier and the catalyst for hydrogen production from FA has received significant attention. However, the development of efficient non-noble metal catalysts still remains challenges. In this work, we provide a technologically rather simple and environmental-friendly strategy to synthesize Co2P catalyst for dehydrogenation of FA by pyrolyzing soybean powder and cobalt salt. The K-containing solid bases in catalyst could act as Lewis acid sites for the HCOO− intermediate adsorption while the self-doped N could act as Lewis base sites to enhance the H+ adsorption. The P contained in soybean could combine with Co to form Co2P for H−C bond cleavage of HCOO−. At a Co(NO3)2·6H2O/soybean mass ratio of 1:15, the as prepared Co2P catalyst demonstrated a gas production rate of 237.47 mL/(g·h) and a good stability. This study provides a novel strategy to develop non-noble metal heterogeneous catalysts for FA dehydrogenation.</div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 6","pages":"Pages 883-892"},"PeriodicalIF":0.0,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141163795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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