Applied Catalysis B: Environment and Energy最新文献_第7页

Dipole polarization-driven spatial charge separation in defective zinc cadmium sulfoselenide for boosting photocatalytic hydrogen evolution 在有缺陷的硫硒化锌镉中实现偶极子极化驱动的空间电荷分离，促进光催化氢气进化

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-22 DOI: 10.1016/j.apcatb.2024.124516

Qingzheng Tian, Li Wang, Weiwei Sun, Alan Meng, Lina Yang, Zhenjiang Li

{"title":"Dipole polarization-driven spatial charge separation in defective zinc cadmium sulfoselenide for boosting photocatalytic hydrogen evolution","authors":"Qingzheng Tian, Li Wang, Weiwei Sun, Alan Meng, Lina Yang, Zhenjiang Li","doi":"10.1016/j.apcatb.2024.124516","DOIUrl":"https://doi.org/10.1016/j.apcatb.2024.124516","url":null,"abstract":"The industrial interest of ZnCdS as the photocatalytic media for hydrogen evolution reaction (HER) is severely hindered by its sluggish interfacial charge transfer, limited active sites, and serious photocorrosions. Herein, to catalyze more efficient and robust HER, a series of Se-doped ZnCdS with sulfur vacancies (denoted as Se/V-ZnCdS) are ingeniously designed and facilely synthesized. Experimental and theoretical studies reveal that by inducing dipole polarization through defect engineering synergistic elemental doping, spontaneous polarization field is generated in the bulk phase of ZnCdS, which together with elevated Fermi level renders the Se/V-ZnCdS with desirable spatial charge separation and transfer. Thus, the optimal 0.6 %Se/V-ZnCdS exhibits the outstanding performance of 85.3 mmol·g·h and excellent stability up to 24 h. This work highlights the high efficiency of dipole polarization realized by vacancy synergistic atomic doping in optimizing HER kinetics, and provides a new pathway to develop robust photocatalysts based on metal sulfoselenide for water-splitting reactions.","PeriodicalId":516528,"journal":{"name":"Applied Catalysis B: Environment and Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205172","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

Constructing Ni/CeO2 synergistic catalysts into LiAlH4 and AlH3 composite for enhanced hydrogen released properties 在 LiAlH4 和 AlH3 复合材料中构建 Ni/CeO2 协同催化剂以增强氢气释放性能

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-22 DOI: 10.1016/j.apcatb.2024.124521

Chunmin Zhang, Chunli Wang, Qingyun Shi, Xiaoli Wang, Shaolei Zhao, Long Liang, Qingshuang Wang, Limin Wang, Yong Cheng

{"title":"Constructing Ni/CeO2 synergistic catalysts into LiAlH4 and AlH3 composite for enhanced hydrogen released properties","authors":"Chunmin Zhang, Chunli Wang, Qingyun Shi, Xiaoli Wang, Shaolei Zhao, Long Liang, Qingshuang Wang, Limin Wang, Yong Cheng","doi":"10.1016/j.apcatb.2024.124521","DOIUrl":"https://doi.org/10.1016/j.apcatb.2024.124521","url":null,"abstract":"The high hydrogen release temperature and thermodynamic stability of the coordination hydride LiAlH render it unsuitable for direct application. This work intends to improve the hydrogen release properties via compositing LiAlH and AlH with similar initial hydrogen release temperatures and introduce efficient additive Ni/CeO composite. The thermal stability of the composite system LiAlH-AlH is enormously reduced compared to that of LiAlH. In addition, the preferential release of hydrogen from LiAlH in the composite system provides additional heat for the subsequent release of hydrogen from AlH, accelerating the hydrogen release process. As a result, LiAlH-AlH-Ni/CeO composite performs enhanced hydrogen release performance with a hydrogen release capacity of 8.27 wt% hydrogen within 300 ℃ and a dehydrogenation onset temperature as low as 72.9 ℃. The enthalpy change of the first step hydrogen release reaction decreases from −11.99 kJ mol (LiAlH) to −2.02 kJ mol (LiAlH-AlH). Theoretical calculations indicate that both atomic dehybridisation and electron redistribution expedite the breaking of the Al-H bond and the consequent release of hydrogen.","PeriodicalId":516528,"journal":{"name":"Applied Catalysis B: Environment and Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205137","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

Efficient peroxydisulfate activation with γ-Al2O3-C-MIL-100(Fe) framework for sulfamethazine degradation: Enhanced oxidant utilization and reduced metal leaching 利用γ-Al2O3-C-MIL-100(Fe)框架高效活化过硫酸氢盐以降解磺胺二甲嘧啶：提高氧化剂利用率并减少金属沥滤

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-22 DOI: 10.1016/j.apcatb.2024.124520

Jianxin Zhu, Haiyang Liu, Haijun Chen, Xiuyi Hua, Deming Dong, Dapeng Liang, Zhiyong Guo, Na Zheng

{"title":"Efficient peroxydisulfate activation with γ-Al2O3-C-MIL-100(Fe) framework for sulfamethazine degradation: Enhanced oxidant utilization and reduced metal leaching","authors":"Jianxin Zhu, Haiyang Liu, Haijun Chen, Xiuyi Hua, Deming Dong, Dapeng Liang, Zhiyong Guo, Na Zheng","doi":"10.1016/j.apcatb.2024.124520","DOIUrl":"https://doi.org/10.1016/j.apcatb.2024.124520","url":null,"abstract":"Low degradation efficiency and significant transition metal leaching are two challenges in persulfate activation systems based on metal-organic frameworks (MOFs) for organic pollutant degradation. Here, the challenges were solved by designing and synthesizing a micron-sized core-shell material, γ-AlO-C-MIL-100(Fe) (γACM), by coating the γ-AlO core with carbon (γ-AlO-C) and futher modifying with MIL-100(Fe). Testing γACM with sulfamethazine (SMZ) demonstrated its outstanding peroxydisulfate (PDS) activation, achieving 92.5 % SMZ removal within 20 min at a low oxidant/pollutant ratio. Fe leaching from γACM was effectively inhibited, with only 3.59 % Fe lost after three recycles. The system showed adaptability across a wide pH range, and usability in sewage effluent, indicating promise for practical application. The hydrophobicity of γ-AlO-C, the coordinatively unsaturated sites in MIL-100(Fe), and the strong bounding of MIL-100(Fe) on γ-AlO-C ensured the effective SMZ gather, PDS activation, and Fe stability respectively, which led to the excellent performances of γACM.","PeriodicalId":516528,"journal":{"name":"Applied Catalysis B: Environment and Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205173","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

Regulating anisotropic diffusion in zeolite for reinforced para-xylene synthesis via CO2 hydrogenation in the presence of toluene 调节沸石中的各向异性扩散，在甲苯存在下通过二氧化碳加氢强化对二甲苯的合成

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-22 DOI: 10.1016/j.apcatb.2024.124523

Xin Shang, Jingfeng Han, Qiao Han, Guangjin Hou, Anmin Zheng, Xiaofeng Yang, Zhiqiang Liu, Guodong Liu, Xiong Su, Yanqiang Huang, Tao Zhang

{"title":"Regulating anisotropic diffusion in zeolite for reinforced para-xylene synthesis via CO2 hydrogenation in the presence of toluene","authors":"Xin Shang, Jingfeng Han, Qiao Han, Guangjin Hou, Anmin Zheng, Xiaofeng Yang, Zhiqiang Liu, Guodong Liu, Xiong Su, Yanqiang Huang, Tao Zhang","doi":"10.1016/j.apcatb.2024.124523","DOIUrl":"https://doi.org/10.1016/j.apcatb.2024.124523","url":null,"abstract":"The synthesis of valuable aromatics via CO transformation, especially -xylene (PX), is of paramount significance but still remains greatly challenging due to the low efficiency and poor selectivity. The present work utilized a composite catalyst based on ZnZrO with a modified H-ZSM-5 exhibiting nano-prism stacking to realize the selective synthesis of PX. Methoxy species generated from CO-derived formate produced as an intermediate over the ZnZrO were readily incorporated into the xylene products for effective alkylation, contributed to an enhanced aromatics-based cycle that provided a selectivity for xylenes among all C hydrocarbons of 91.1 %. The lengthened straight channels in the H-ZSM-5 along the -axis, derived from the crystal stacking pattern, increased differences in the diffusion properties of the xylene isomers, and thereby steering the movement of molecules toward a product shape-selective pathway, leading to 90.1 % selectivity for PX among all xylenes, and provided exceptional CO utilization efficiency of ∼60 %.","PeriodicalId":516528,"journal":{"name":"Applied Catalysis B: Environment and Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205138","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

Tip-intensified engineering of interfacial microenvironment toward pH-universal hydrogen evolution reaction 尖端强化界面微环境工程，实现 pH 值通用氢进化反应

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-18 DOI: 10.1016/j.apcatb.2024.124512

Youmei Kong, Wei Yang, Jingjing Bao, Licheng Sun, Yang Qiu, Yu Chen, Qiang Zhao, Min Du, Zhengyu Mo

引用次数: 0

Enhanced solar urea synthesis from CO2 and nitrate waste via oxygen vacancy mediated-TiOx support lead-free perovskite 通过氧空位介导的氧化钛支撑无铅过氧化物增强太阳能利用二氧化碳和硝酸盐废料合成尿素的能力

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-17 DOI: 10.1016/j.apcatb.2024.124511

Haoyue Sun, Zhisheng Lin, Rui Tang, Yuhang Liang, Sibei Zou, Xingmo Zhang, Kaijuan Chen, Rongkun Zheng, Jun Huang

{"title":"Enhanced solar urea synthesis from CO2 and nitrate waste via oxygen vacancy mediated-TiOx support lead-free perovskite","authors":"Haoyue Sun, Zhisheng Lin, Rui Tang, Yuhang Liang, Sibei Zou, Xingmo Zhang, Kaijuan Chen, Rongkun Zheng, Jun Huang","doi":"10.1016/j.apcatb.2024.124511","DOIUrl":"https://doi.org/10.1016/j.apcatb.2024.124511","url":null,"abstract":"The nitrogen fertilizer industry, particularly urea production, notably contributes to greenhouse gas emissions and energy consumption. Urea synthesis via solar energy encounters several challenges. Specifically, solar urea synthesis methods often exhibit low efficiency and yield, primarily stemming from inefficient energy conversion processes and intricate reaction pathways. Moreover, the kinetics of the urea synthesis reaction may be sluggish, thereby impacting the overall production rate. Therefore, in this study, we introduce a novel electron-reserve-enhanced CsCuBr/TiO-Ar (CCBT-Ar) structure for the photocatalytic synthesis of urea from CO and nitrate waste. Theoretical calculations and spectroscopic analysis underscore the critical role of oxygen vacancies (O) within the amorphous TiO shell, enhancing reactant adsorption and catalyzing the rate-determining step (*OCONH→*HOCONH). However, the presence of O also results in significant carrier recombination, acting as trapping centers and reducing urea production activity. Importantly, we demonstrate that -grown carbon nanosheets, in conjunction with TiO, function as efficient electron reservoirs, markedly mitigating trapping-induced recombination and facilitating electron redistribution. These reserved electrons can then actively participate in the urea synthesis process. As a result, the electron-reserve-enhanced structure exhibits robust solar urea yield and selectivity, even in challenging wastewater conditions. This work provides a rational and innovative approach to catalyst development in complex solar synthesis, offering promising avenues for the sustainable production of value-added chemicals while concurrently reducing carbon emissions.","PeriodicalId":516528,"journal":{"name":"Applied Catalysis B: Environment and Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205167","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

Defect engineering in SnO2 catalysts for the organic oxidation reaction 用于有机氧化反应的二氧化锡催化剂中的缺陷工程学

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-17 DOI: 10.1016/j.apcatb.2024.124515

Keivan Rahimi, Aditya Rawal, Yi Fen Zhu, Judy N. Hart, Emma C. Lovell, Jason Scott

引用次数: 0

Formation of acetonitrile and ethylene from activation of ethane over cobalt-exchanged aluminosilicates: Active sites and reaction pathways 乙烷在钴交换铝硅酸盐上活化生成乙腈和乙烯：活性位点和反应途径

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-17 DOI: 10.1016/j.apcatb.2024.124513

Yongwoo Kim, Jieun Lee, Abiram Krishnan, Jing Luo, Xue Chen, Faisal M. Alamgir, David W. Flaherty

引用次数: 0

Dual structure cobalt sites on surface hydroxyl and oxygen vacancy of BiOCl for cooperative CO2 reduction and tetracycline oxidation BiOCl 表面羟基和氧空位上的双重结构钴位点可协同实现二氧化碳还原和四环素氧化

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-17 DOI: 10.1016/j.apcatb.2024.124514

Haoyu Sun, Haili Lin, Xuemei Jia, Xinyue Li, Shuang Li, Xin Jin, Qianlong Wang, Shifu Chen, Jing Cao

{"title":"Dual structure cobalt sites on surface hydroxyl and oxygen vacancy of BiOCl for cooperative CO2 reduction and tetracycline oxidation","authors":"Haoyu Sun, Haili Lin, Xuemei Jia, Xinyue Li, Shuang Li, Xin Jin, Qianlong Wang, Shifu Chen, Jing Cao","doi":"10.1016/j.apcatb.2024.124514","DOIUrl":"https://doi.org/10.1016/j.apcatb.2024.124514","url":null,"abstract":"Metal ion cocatalysts have huge prospect for photocatalytic CO reduction coupled with organic decomposition because of their cost effectiveness and abundant active sites. Herein, we exploit a defect−group oriented tactic to induce dual−structured Co sites on BiOCl with rich surface hydroxyls (OHs) and oxygen vacancies (OVs) (labeled as BiOCl−OH), in which the surface OHs and OVs acted as anchoring points to anchor Co ions. Density functional theory calculations manifested that surface OHs anchored Co ions via hydrogen bonding to produce tight OH−Co sites, meanwhile, surface OVs with unsaturated metal sites and unpaired electrons captured Co ions through chemical bonding to form close−knit OV−Co site. The as−generated OV−Co and OH−Co site served as reductive and oxidative cocatalyst for CO reduction and tetracycline oxidation, respectively, thereby achieving high−efficiency redox activity. This work provided a novel strategy to devise progressive dual functional metal ions cocatalysts for high−efficiency CO reduction and organic pollutants oxidation.","PeriodicalId":516528,"journal":{"name":"Applied Catalysis B: Environment and Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205140","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

Deciphering the enhanced oxygen reduction reaction activity of PrBa0.5Sr0.5Co1.5Fe0.5O5+δ via constructing negative thermal expansion offset for high-performance solid oxide fuel cell 通过构建用于高性能固体氧化物燃料电池的负热膨胀偏移，解密增强氧还原反应活性的 PrBa0.5Sr0.5Co1.5Fe0.5O5+δ

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-15 DOI: 10.1016/j.apcatb.2024.124509

Xiaoyu Liu, Xiuan Xi, Yuanfeng Liao, Lingui Huang, Jianwen Liu, Hao Chen, Yan Yi, Jun Long, Jiujun Zhang, Xian-Zhu Fu, Jing-Li Luo

{"title":"Deciphering the enhanced oxygen reduction reaction activity of PrBa0.5Sr0.5Co1.5Fe0.5O5+δ via constructing negative thermal expansion offset for high-performance solid oxide fuel cell","authors":"Xiaoyu Liu, Xiuan Xi, Yuanfeng Liao, Lingui Huang, Jianwen Liu, Hao Chen, Yan Yi, Jun Long, Jiujun Zhang, Xian-Zhu Fu, Jing-Li Luo","doi":"10.1016/j.apcatb.2024.124509","DOIUrl":"https://doi.org/10.1016/j.apcatb.2024.124509","url":null,"abstract":"Solid oxide fuel cells (SOFCs) are one of the most efficient energy conversion devices. However, the sluggish oxygen reduction reaction (ORR) kinetics at low temperatures significantly challenge the performance and commercialization of SOFCs. Introducing negative expansion coefficient materials has been recognized as an effective approach to enhancing the ORR catalytic properties, but a clear understanding of this enhanced electrochemical performance is still lacking. In this work, the composite cathode of PrBaSrCoFeO (PBSCF) with different amounts of negative-thermal-expansion material SmZnMnO (SZM) is prepared, and in-depth analysis the effect of SZM on the catalytic activity of cathodic ORR is systematically investigated. Simultaneously, the mechanistic studies verify that the enhanced ORR activity might be attributed to the constructed compression strain during sintering, which significantly improves the adsorption, dissociation, and oxygen ion exchange process of the PBSCF cathode.","PeriodicalId":516528,"journal":{"name":"Applied Catalysis B: Environment and Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205166","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