燃料化学学报最新文献

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Distribution of volatile composition from co-pyrolysis of NMH coal and dealkaline lignin NMH 煤和脱碱木质素共热解产生的挥发性成分分布
燃料化学学报 Pub Date : 2024-11-01 DOI: 10.1016/S1872-5813(24)60471-8
Yang LI , Bowen WU , Zhipeng YU , He YANG , Lijun JIN , Haoquan HU
{"title":"Distribution of volatile composition from co-pyrolysis of NMH coal and dealkaline lignin","authors":"Yang LI ,&nbsp;Bowen WU ,&nbsp;Zhipeng YU ,&nbsp;He YANG ,&nbsp;Lijun JIN ,&nbsp;Haoquan HU","doi":"10.1016/S1872-5813(24)60471-8","DOIUrl":"10.1016/S1872-5813(24)60471-8","url":null,"abstract":"<div><div>Experimental studies on co-pyrolysis of coal and lignin are carried out on a fixed-bed reactor to investigate composition and transformation of the co-pyrolysis products. The results show that co-pyrolysis reduces yield of char and promotes yield of gas, the maximum pyrolysis gas yield increases by 33.1%. Co-pyrolysis has a significant promotion effect on generation of CH<sub>4</sub> and CO. The interaction between the pyrolyzed volatile fractions of coal and lignin shows the most pronounced interaction at a coal to lignin mixing ratio of 1:1, and the pyrolysis tar yield shows a positive synergistic effect. Guaiacols are converted to monophenols and bisphenols during the co-pyrolysis process. Content of monophenols and bisphenols increase by 2.9% and 9.8%, respectively, while content of guaiacols decreases by 5.1% compared with the theoretically calculated values. The breakage of carbonyl and carboxyl groups, and the interaction with volatile components are enhanced, which inhibits formation of ethers, aldehydes and acids, and promotes generation of phenols, release of oxygenated gases and stabilization of pyrolysis tar. The introduction of lignin into coal pyrolysis also significantly promotes the upgrading of tar in which light components is nearly 90%.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 11","pages":"Pages 1594-1603"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723032","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
Enhancing photo-generated carriers transfer of K-C3N4/UiO-66-NH2 with Er doping for efficient photocatalytic oxidation of furfural to furoic acid 掺杂 Er 增强 K-C3N4/UiO-66-NH2 的光生载流子转移,实现糠醛到糠酸的高效光催化氧化
燃料化学学报 Pub Date : 2024-11-01 DOI: 10.1016/S1872-5813(24)60469-X
Haocun WANG, Lingtao LIU, Junjie BIAN, Chunhu LI
{"title":"Enhancing photo-generated carriers transfer of K-C3N4/UiO-66-NH2 with Er doping for efficient photocatalytic oxidation of furfural to furoic acid","authors":"Haocun WANG,&nbsp;Lingtao LIU,&nbsp;Junjie BIAN,&nbsp;Chunhu LI","doi":"10.1016/S1872-5813(24)60469-X","DOIUrl":"10.1016/S1872-5813(24)60469-X","url":null,"abstract":"<div><div>Biomass-derived platform molecules, such as furfural, are abundant and renewable feedstock for valuable chemical production. It is critical to synthesize highly efficient photocatalysts for selective oxidation under visible light. The Er@K-C<sub>3</sub>N<sub>4</sub>/UiO-66-NH<sub>2</sub> catalyst was synthesized using a straight-forward hydrothermal technique, and exhibited exceptional efficiency in the photocatalytic oxidation of furfural to furoic acid. The catalyst was thoroughly characterized, confirming the effective adjustment of the band gap energy of Er@K-C<sub>3</sub>N<sub>4</sub>/UiO-66-NH<sub>2</sub>. Upon the optimized reaction conditions, the conversion rate of furfural reached 89.3%, with a corresponding yield of furoic acid at 79.8%. The primary reactive oxygen species was identified as ·O− 2 from ESR spectra and scavenger tests. The incorporation of Er and K into the catalyst enhanced the photogenerated carriers transfer rate, hence increasing the separating efficiency of photogenerated electron-hole pairs. This study expands the potential applications of rare earth element doped <em>g</em>-C<sub>3</sub>N<sub>4</sub> in the photocatalytic selective oxidation of furfurans.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 11","pages":"Pages 1617-1628"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723033","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
Controllable synthesis of CuAlO2 via solid-phase method and its catalytic performance for methanol steam reforming to hydrogen 固相法可控合成 CuAlO2 及其在甲醇蒸汽转化制氢过程中的催化性能
燃料化学学报 Pub Date : 2024-11-01 DOI: 10.1016/S1872-5813(24)60473-1
Shaojun QING , Xun SUN , Xinglong LI , Lei WANG , Zhiwei WU , Jianguo WANG
{"title":"Controllable synthesis of CuAlO2 via solid-phase method and its catalytic performance for methanol steam reforming to hydrogen","authors":"Shaojun QING ,&nbsp;Xun SUN ,&nbsp;Xinglong LI ,&nbsp;Lei WANG ,&nbsp;Zhiwei WU ,&nbsp;Jianguo WANG","doi":"10.1016/S1872-5813(24)60473-1","DOIUrl":"10.1016/S1872-5813(24)60473-1","url":null,"abstract":"<div><div>This study explores the controllable synthesis of CuAlO<sub>2</sub> using copper hydroxide and pseudo-boehmite powders as raw materials via a simple solid-phase ball milling method, along with its catalytic performance investigation in methanol steam reforming (MSR). Various catalysts were prepared under different conditions, such as calcination temperature, calcination atmosphere, and heating rate. Characterization techniques including BET, XRD, XPS, SEM and H<sub>2</sub>-TPR were employed to analyze the samples. The results revealed significant effects of calcination temperature on the phase compositions, specific surface area, reduction performance, and surface properties of the CA-<em>T</em> catalysts. Based on the findings, a synthesis route of CuAlO<sub>2</sub> via the solid-phase method was proposed, highlighting the importance of high calcination temperature, nitrogen atmosphere, and low heating rate for CuAlO<sub>2</sub> formation. Catalytic evaluation data demonstrated that CuAlO<sub>2</sub> could catalyze MSR without pre-reduction, with the catalytic performance of CA-<em>T</em> catalysts being notably influenced by calcination temperature. Among the prepared catalysts, the CA-1100 catalyst exhibited the highest catalytic activity and stability. The findings of this study might be useful for the further study of the catalytic material for sustained release catalysis, including the synthesis of catalytic materials and the regulation of sustained release catalytic performance.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 11","pages":"Pages 1641-1651"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723030","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
Architecture of core-shell Ce-OMS-2@CeO2 catalyst and its SCR activity and SO2+H2O tolerance performance at low-temperature 核壳 Ce-OMS-2@CeO2 催化剂的结构及其低温 SCR 活性和 SO2+H2O 耐受性能
燃料化学学报 Pub Date : 2024-11-01 DOI: 10.1016/S1872-5813(24)60465-2
Geyu DAI, Yuewang PENG, Chao YU, Bihong LÜ, Xiaomin WU, Guohua JING
{"title":"Architecture of core-shell Ce-OMS-2@CeO2 catalyst and its SCR activity and SO2+H2O tolerance performance at low-temperature","authors":"Geyu DAI,&nbsp;Yuewang PENG,&nbsp;Chao YU,&nbsp;Bihong LÜ,&nbsp;Xiaomin WU,&nbsp;Guohua JING","doi":"10.1016/S1872-5813(24)60465-2","DOIUrl":"10.1016/S1872-5813(24)60465-2","url":null,"abstract":"<div><div>It is a challenge to develop highly sulfur dioxide and water (SO<sub>2</sub>+H<sub>2</sub>O) resistance for the low-temperature selective catalytic reduction (SCR) catalysts of nitrogen oxide (NO<sub><em>x</em></sub>) in the non-electric-power industry. In this paper, core-shell and loaded type of Ce-OMS-2 complexes (Ce-OMS-2@CeO<sub>2</sub> and CeO<sub>2</sub>/Ce-OMS-2) were successfully prepared. Their textural properties were characterized and catalytic performance were carried out. The results showed that the core-shell Ce-OMS-2@CeO<sub>2</sub> material could maintain the mesoporous structure and significantly improve the mass transfer and adsorption of the reaction gas NO, thus improving the SCR efficiency. On the contrary, for the loaded CeO<sub>2</sub>/Ce-OMS-2 catalyst, large amounts of CeO<sub>2</sub> deposited on the surface of Ce-OMS-2 and blocked the mesoporous structure. Furthermore, SO<sub>2</sub> reacted with CeO<sub>2</sub>/Ce-OMS-2 to form lots of metal sulfate (manganese sulfate or cerium sulfate), which led to the deactivation of the active Mn sites. Therefore, the CeO<sub>2</sub>/Ce-OMS-2 catalyst exhibited the low SCR activity and poor SO<sub>2</sub>+H<sub>2</sub>O tolerance during the SCR reaction. We also clarify the reason for the anti-sulfur of core-shell Ce-OMS-2@CeO<sub>2</sub> catalyst. In the presence of SO<sub>2</sub> and H<sub>2</sub>O, SO<sub>2</sub> could easily react with NH<sub>3</sub> and H<sub>2</sub>O to produce ammonium bisulfate (NH<sub>4</sub>HSO<sub>4</sub>, ABS) on the surface of the Ce-OMS-2 and CeO<sub>2</sub>/Ce-OMS-2 catalysts. Then ABS can be physically deposited on the surface of the catalysts, thus blocking the active Mn sites to participate in the SCR reaction. Interesting, for the core-shell Ce-OMS-2@CeO<sub>2</sub> catalyst, the formed ABS could significantly be decomposed at low temperature, leading to the exposure of surface active Mn sites of the catalyst. Herein, it could maintain the efficient SCR performance over the Ce-OMS-2@CeO<sub>2</sub> catalyst. A dynamic balance of ABS formation and decomposition was achieved over Ce-OMS-2@CeO<sub>2</sub> even at low temperatures, which hindered the SO<sub>2</sub> poisoning during the NH<sub>3</sub>-SCR reaction. As expected, the core-shell Ce-OMS-2@CeO<sub>2</sub> catalyst showed excellent SCR performance and SO<sub>2</sub>+H<sub>2</sub>O resistance (~100% NO conversion\tin the temperature range of 100–200 °C without SO<sub>2</sub>, ~80% NO conversion for 4 h in the presence of SO<sub>2</sub>). This work provides an effective strategy for the development of efficient and stable Mn-based low-temperature SCR catalysts.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 11","pages":"Pages 1686-1695"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723035","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 effects of calcination temperature and dispersants on the catalytic performance of Co0.8Cu0.2/CNC for the hydrolysis of ammonia borane to hydrogen 煅烧温度和分散剂对 Co0.8Cu0.2/CNC 催化硼烷氨水解制氢性能的影响
燃料化学学报 Pub Date : 2024-11-01 DOI: 10.1016/S1872-5813(24)60462-7
Rong LI , Youhua ZUO , Licheng XU , Junfeng HUA , Jiajia FENG , Lixin XU , Mingfu YE , Chao WAN
{"title":"The effects of calcination temperature and dispersants on the catalytic performance of Co0.8Cu0.2/CNC for the hydrolysis of ammonia borane to hydrogen","authors":"Rong LI ,&nbsp;Youhua ZUO ,&nbsp;Licheng XU ,&nbsp;Junfeng HUA ,&nbsp;Jiajia FENG ,&nbsp;Lixin XU ,&nbsp;Mingfu YE ,&nbsp;Chao WAN","doi":"10.1016/S1872-5813(24)60462-7","DOIUrl":"10.1016/S1872-5813(24)60462-7","url":null,"abstract":"<div><div>Ammonia borane (NH<sub>3</sub>BH<sub>3</sub>, AB) is considered as an ideal hydrogen storage material for portable hydrogen production. In this paper, a bimetallic carbon cube (Co<sub>0.8</sub>Cu<sub>0.2</sub>/CNC) catalyst was prepared by high-temperature calcination of the Co<sub>0.8</sub>Cu<sub>0.2</sub>-ZIF precursor, which was obtained by stirring the reactants at room temperature. In addition, the microstructure and composition of the catalyst were investigated using various characterization methods. The change regularity of the catalyst was explored through the single-variable method. The results showed that the addition of a small amount of Cu had a stabilizing effect on the cubic morphology of the Co<sub>0.8</sub>Cu<sub>0.2</sub>/CNC catalyst. When the dispersant was CTAB and the calcination temperature was 873 K, the activation energy (<em>E</em><sub>a</sub>) for catalyzing the hydrolysis of AB to hydrogen was 50.79 kJ/mol with the transition frequency (TOF) value as high as 23.37 min<sup>–1</sup>. Moreover, the catalyst could still catalyze the complete hydrolysis of AB to hydrogen after 25 cycles, which indicated that the catalyst had good stability performance.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 11","pages":"Pages 1736-1744"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723039","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 Ni/ZnCo2O4@ZnO composite metal oxide adsorbent and its adsorption desulfurization and regeneration performance Ni/ZnCo2O4@ZnO 复合金属氧化物吸附剂的制备及其吸附脱硫和再生性能
燃料化学学报 Pub Date : 2024-11-01 DOI: 10.1016/S1872-5813(24)60463-9
Pu DAI , Mengya GUO , Hui GE , Caimei FAN , Xuekuan LI , Rui LI , Mingxing TANG
{"title":"Preparation of Ni/ZnCo2O4@ZnO composite metal oxide adsorbent and its adsorption desulfurization and regeneration performance","authors":"Pu DAI ,&nbsp;Mengya GUO ,&nbsp;Hui GE ,&nbsp;Caimei FAN ,&nbsp;Xuekuan LI ,&nbsp;Rui LI ,&nbsp;Mingxing TANG","doi":"10.1016/S1872-5813(24)60463-9","DOIUrl":"10.1016/S1872-5813(24)60463-9","url":null,"abstract":"<div><div>Metal Co was introduced into ZnO by co-precipitation to form composite metal oxides as the desulfurization agent with different Co contents, with which the desulfurization activity and regeneration performance were investigated. The systematic characterization of the structure and properties of the desulfurization agent using XRD, TEM, N<sub>2</sub> adsorption and desorption, XPS and H<sub>2</sub>-TPR confirmed that the composite metal oxide desulfurization agent had the Ni/ZnCo<sub>2</sub>O<sub>4</sub>@ZnO structure. The formation of ZnCo<sub>2</sub>O<sub>4</sub> in the composite metal oxides desulfurization agent facilitated the particle size reduction, dispersion enhancement and specific surface area increase of the desulfurization agent, which also acted as an adsorbent for H<sub>2</sub>S indicated by the XRD analysis, improving the sulfur adsorption capacity of the desulfurization agent. The desulfurization performance of all the composite metal oxide desulfurization agents was higher than that of Ni/ZnO, in which the desulfurization agent NZCo-3 with a molar ratio of Zn:Co of 1:1 exhibited the optimal desulfurization performance, and the desulfurization rate was 100% at a reaction temperature of 300 °C, a hydrogen pressure of 3 MPa, a mass-air velocity of 2.2 h<sup>–1</sup>, and a hydrogen-oil ratio of 300, and the excellent desulfurization performance was maintained after 6 cycles. The results of this study provide new ideas for the rational design of Ni/ZnO desulfurization agent to improve its desulfurization and regeneration performance.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 11","pages":"Pages 1706-1714"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723037","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
In-situ photodeposition of co-catalyst Ni2P on CdS for photocatalytic conversion of ethanol for synergistic hydrogen production 在 CdS 上原位光沉积辅助催化剂 Ni2P,用于乙醇的光催化转化以协同制氢
燃料化学学报 Pub Date : 2024-11-01 DOI: 10.1016/S1872-5813(24)60493-7
Yiming LIU , Jingjing MIAO , Wanggang ZHANG , Aili WEI , Jian WANG
{"title":"In-situ photodeposition of co-catalyst Ni2P on CdS for photocatalytic conversion of ethanol for synergistic hydrogen production","authors":"Yiming LIU ,&nbsp;Jingjing MIAO ,&nbsp;Wanggang ZHANG ,&nbsp;Aili WEI ,&nbsp;Jian WANG","doi":"10.1016/S1872-5813(24)60493-7","DOIUrl":"10.1016/S1872-5813(24)60493-7","url":null,"abstract":"<div><div>In this study, Ni<sub>2</sub>P/CdS composites were constructed by depositing non-precious metal co-catalyst Ni<sub>2</sub>P on a one-dimensional network of CdS using a simple <em>in-situ</em> photodeposition method. The prepared photocatalysts promoted the decomposition of ethanol into high-value-added products while generating hydrogen. The composite photoanodes loaded with the Ni<sub>2</sub>P co-catalysts showed significantly higher ethanol conversion and hydrogen production in the visible light region, which was almost three times higher than that of pure CdS. The main products of photocatalytic ethanol production are acetaldehyde (AA) and 2,3-butanediol (2,3-BDA). Compared with CdS, the selectivity of the composite photocatalysts for converting ethanol to acetaldehyde was significantly improved (62% to 78%). Characterization of the prepared photocatalysts confirmed that the loading of Ni<sub>2</sub>P co-catalysts on CdS not only broadened the optical region of the catalysts for trapping light but also effectively promoted the separation and transfer of charge carriers, which significantly improved the photocatalytic efficiency of ethanol conversion and hydrogen production in the catalysts. It has been proven through Electron Paramagnetic Resonance testing that loading a Ni<sub>2</sub>P co-catalyst on CdS is beneficial for the adsorption of hydroxyethyl radicals (*CH(OH)CH<sub>3</sub>), thereby further improving the selectivity of acetaldehyde. This study plays an important role in the rational design of composite catalyst structures and the introduction of co-catalysts to improve catalyst performance, promote green chemistry, advocate a low-carbon society, and promote sustainable development.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 11","pages":"Pages 1629-1640"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723034","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
Development of Nix/Mg1–x-MOF-74 for highly efficient CO2/N2 separation 开发用于高效 CO2/N2 分离的 Nix/Mg1-x-MOF-74
燃料化学学报 Pub Date : 2024-11-01 DOI: 10.1016/S1872-5813(24)60464-0
Xin ZHANG , Guoqiang LI , Mei HONG , Hongyan BAN , Lixia YANG , Xingchen LIU , Feng LI , Ekaterina Vladimirovna Matus , Congming LI , Lei LI
{"title":"Development of Nix/Mg1–x-MOF-74 for highly efficient CO2/N2 separation","authors":"Xin ZHANG ,&nbsp;Guoqiang LI ,&nbsp;Mei HONG ,&nbsp;Hongyan BAN ,&nbsp;Lixia YANG ,&nbsp;Xingchen LIU ,&nbsp;Feng LI ,&nbsp;Ekaterina Vladimirovna Matus ,&nbsp;Congming LI ,&nbsp;Lei LI","doi":"10.1016/S1872-5813(24)60464-0","DOIUrl":"10.1016/S1872-5813(24)60464-0","url":null,"abstract":"<div><div>To enhance the separation selectivity of Mg-MOF-74 towards CO<sub>2</sub> in a CO<sub>2</sub>/N<sub>2</sub> mixture, a series of Mg-MOF-74 and Ni<sub><em>x</em></sub>/Mg<sub>1–<em>x</em></sub>-MOF-74 adsorbents were prepared by solvothermal synthesis in this paper. It was found that the adsorption capacity of Mg-MOF-74 for CO<sub>2</sub> could be effectively increased by optimizing the amount of acetic acid. On this basis, the bimetal MOF-74 adsorbent was prepared by metal modification. The multi-component dynamic adsorption penetration analysis was utilized to examine the CO<sub>2</sub> adsorption capacity and CO<sub>2</sub>/N<sub>2</sub> selectivity of the diverse adsorbent materials. The results showed that Ni<sub>0.11</sub>/Mg<sub>0.89</sub>-MOF-74 showed a CO<sub>2</sub> adsorption capacity of 7.02 mmol/g under pure CO<sub>2</sub> atmosphere and had a selectivity of 20.50 for CO<sub>2</sub>/N<sub>2</sub> under 15% CO<sub>2</sub>/85% N<sub>2</sub> conditions, which was 10.2% and 18.02% higher than that of Mg-MOF-74 respectively. Combining XPS, SEM and N<sub>2</sub> adsorption-desorption characterization analysis, it was attributed to the effect of the more stable unsaturated metal sites Ni into the Mg-MOF-74 on the pore structure and the synergistic interaction between the two metals. Density Functional Theory (DFT) simulations revealed that the synergistic interaction between modulated the electrostatic potential strength and gradient of the material, which was more favorable for the adsorption of CO<sub>2</sub> molecules with small diameters and large quadrupole moment. In addition, the Ni<sub>0.11</sub>/Mg<sub>0.89</sub>-MOF-74 showed commendable cyclic stability, underscoring its promising potential for practical applications.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 11","pages":"Pages 1745-1758"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723040","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
Research on improving carbon oxidation by fluorine doping in carbon-assisted water electrolysis for hydrogen production 碳辅助水电解制氢中通过掺氟改善碳氧化的研究
燃料化学学报 Pub Date : 2024-11-01 DOI: 10.1016/S1872-5813(24)60474-3
Qi LIU , Yanqing DOU , Zhouting GONG , Shoujun LIU , Liangyu CHEN , Yuwen TAO , Jinfang LIU , Song Yang
{"title":"Research on improving carbon oxidation by fluorine doping in carbon-assisted water electrolysis for hydrogen production","authors":"Qi LIU ,&nbsp;Yanqing DOU ,&nbsp;Zhouting GONG ,&nbsp;Shoujun LIU ,&nbsp;Liangyu CHEN ,&nbsp;Yuwen TAO ,&nbsp;Jinfang LIU ,&nbsp;Song Yang","doi":"10.1016/S1872-5813(24)60474-3","DOIUrl":"10.1016/S1872-5813(24)60474-3","url":null,"abstract":"<div><div>Faced with the constraints of the “carbon peaking and carbon neutrality goals”, the electrolysis of water for hydrogen production has received significant attention. However, high energy consumption is one of the problems hindering the industrialization of the technology. A strategy for “sacrificial anode carbon-assisted electrolysis of water for hydrogen production” is thus proposed, which uses the carbon oxidation reaction (COR) instead of the oxygen evolution reaction (OER) to achieve a significant reduction in energy consumption. In particular, F-doped biochar (denoted as F-BC-850) was prepared using a simple two-step carbonization method. The structural properties were analyzed using XRD, SEM-EDS, thermogravimetric, XPS and other characterization techniques. The structure-activity relationship was elucidated by electrochemical tests. The results showed that the energy consumption in 0.5 mol/L H<sub>2</sub>SO<sub>4</sub> solution at 10 mA/cm<sup>2</sup> was 57.9% of the conventional Pt sheet electrode. Characterization results showed that HF generated by the pyrolysis of ammonium fluoride etched the biochar and formed highly active C–F bonds, which improved the oxidation performance of carbon. The addition of F species changed the carbon structure, promoted the decomposition of H<sub>2</sub>O molecules to *OH radicals, and thus increased the adsorption ability of carbon atoms for *OH radicals. This work can provide theoretical guidelines for the efficient production of H<sub>2</sub> by carbon-assisted electrolysis of water and high-quality utilization of biomass.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 11","pages":"Pages 1728-1735"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723038","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
Non-thermal plasma-catalytic reforming of tar over Ni-based catalysts 在镍基催化剂上对焦油进行非热等离子催化重整
燃料化学学报 Pub Date : 2024-11-01 DOI: 10.1016/S1872-5813(24)60475-5
Jinchao HU , Tian CHANG , Mingyan XIAO , Tian ZHANG , Xue HE
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