检索结果-内蒙古大学图书馆

Investigation into enhanced performance of toluene and Hg^(0) stimulative abatement over Cr-Mn oxides co-modified columnar activated coke

引用

Journal of Environmental Sciences 2025年第2期148卷 88-106页

作者： Jiajie Wang Jie Liu Lei Gao Dong Xie Caiting Li Liping Xiang Huiyu Xiong Jiaqi Xie Tianren Zhang Yueguo Pan School of Resources Environment and Safety Engineering University of South ChinaHengyang 421001China National&Local Joint Engineering Research Center for Airborne Pollutants Control and Radioactivity Protection in Buildings Hengyang 421001China Key Laboratory of Prefabricated Building Energy Saving Technology of Hunan Province Hengyang 421001China College of Environmental Science and Engineering Hunan UniversityChangsha 410082China

In this study,a string of Cr-Mnco-modified activated coke catalysts(XCryMn1-y/AC)were prepared to investigate toluene and Hg^(0) removal *** characterizations including XRD,TEM,SEM,in situ DRIFTS,BET,XPS and H_(2)-TPR showed that 4%Cr0.5Mn0.5/AC had excellent physicochemical properties and exhibited the best toluene and Hg^(0) removal efficiency at 200℃.By varying the experimental gas components and conditions,it was found that too large weight hourly space velocity would reduce the removal efficiency of toluene and Hg^(0).Although O_(2) promoted the abatement of toluene and Hg^(0),the inhibitory role of H_(2)O and SO_(2) offset the promoting effect of O_(2) to some *** significantly inhibited Hg^(0) removal,resulting from that toluene was present at concentrations orders of magnitude greater than mercury’s or the catalyst was more prone to adsorb toluene,while Hg^(0) almost exerted non-existent influence on toluene *** mechanistic analysis showed that the forms of toluene and Hg^(0) removal included both adsorption and oxidation,where the high-valent metal cations and oxygen vacancy clusters promoted the redox cycle of Cr^(3+)+Mn^(3+)/Mn^(4+)+Cr^(6+)+Mn^(2+),which facilitated the conversion and replenishment of reactive oxygen species in the oxidation process,and even the CrMn_(1.5)O_(4) spinel structure could provide a larger catalytic interface,thus enhancing the adsorption/oxidation of toluene and Hg^(0).Therefore,its excellent physicochemical properties make it a costeffective potential industrial catalyst with outstanding synergistic toluene and Hg^(0) removal performance and preeminent resistance to H_(2)O and SO_(2).

关键词： Toluene Element mercury Cr-Mn oxides Activated coke

来源：评论

学校读者我要写书评

暂无评论

Sulfhydryl-modified zeolite A with exceptional strontium adsorption selectivity

引用

Science China Chemistry 2025年第5期68卷 1847-1858页

作者： Lingyi Li Lanxing Ren Dong Wang Junchang Chen Qi Guo Yuting Zhao Fuqiang Zhao Linwei He Jie Li Wenqi Zhang Lijuan Song Long Chen Lixi Chen Bin Wang Lin Zhu Tao Duan Zhifang Chai Shuao Wang State Key Laboratory of Radiation Medicine and Protection School for Radiological and Interdisciplinary Sciences (RAD-X)and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow University School of Science Harbin Institute of Technology (Shenzhen) School of Chemistry and Chemical Engineering Hunan Province Key Laboratory for the Design and Application of Actinide ComplexesUniversity of South China Radioactive Waste Technology and Radiochemistry Research Department China Nuclear Power Technology Research Institute Co.Ltd. State Key Laboratory of Environment-Friendly Energy Materials School of National Defence Science & TechnologySouthwest University of Science and Technology

Efficient removal of trace radiostrontium from contaminated highly saline wastewater,such as seawater,remains a critical but challenging task due to the coexistence of large excess of hard cations like Na+,K+,Mg2+and particularly Ca2+,which shares similar physicochemical properties with Sr2+.Herein,we successfully boosted the selectivity by a sulfhydryl-functionalized NaA zeolite（SH-NaA） via ion exchange coupled with reinforced soft-soft interactions between sulfhydryl groups and Sr2+.Remarkably,SH-NaA achieved a 99.8%removal efficiency of Sr2+in the presence of a tenfold excess of Ca2+,with a distribution coefficient（Kd） of 4.98×10～5mL/*** effectiveness of SH-NaA in accurately capturing Sr2+was further validated by its superior dynamic adsorption performance in natural seawater compared to pristine NaA *** experiments highlighted SH-NaA’s exceptional Sr2+removal efficiency（qm=233.36 mg/g）,rapid adsorption kinetics（1 min）,superior decontamination depth（Kd=6.71×10～5mL/g）,and robust irradiation stability（400 kGy γ-ray）.X-ray photoelectron spectroscopy（XPS） and in situ Fouriertransform infrared（FTIR） analyses underscored the pivotal role of sulfhydryl groups in Sr2+*** functional theory（DFT） calculations revealed that the sulfhydryl-functionalized NaA zeolite exhibits the best selectivity toward Sr2+,with an interaction energy of-2.55 *** findings demonstrate that organic group functionalized zeolites hold significant promise for environmental remediation applications.

关键词： strontium selectivity adsorption seawater sulfhydryl NaA zeolite

来源：评论

学校读者我要写书评

暂无评论

Transition metal-based cathode catalysts for Li-CO_(2)batteries

引用

Journal of energy Chemistry 2025年第5期104卷 225-253页

作者： Wenqing Ma Mingjuan Gao Jianping Ma Siyu Liu Lishan Yang Yahui Yang Xiangping Chen Tianzhen Jian Institute for Advanced Interdisciplinary Research(iAIR) Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of ShandongSchool of Chemistry and Chemical EngineeringUniversity of JinanJinan 250022ShandongChina Key Laboratory of Chemical Biology&Traditional Chinese Medicine Research(Ministry of Education of China) National and Local Joint Engineering Laboratory for New Petrochemical Materials and Fine Utilization of ResourcesKey Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan ProvinceKey Laboratory of Light Energy Conversion Materials of Hunan Province CollegeHunan Normal UniversityChangsha 410081HunanChina Nano-Science Center&Department of Chemistry University of CopenhagenCopenhagen 2100Denmark Jinan Preschool Education College Jinan 250307ShandongChina State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100ShandongChina Shandong Sacred Sun Power Sources Co.Ltd. Qufu 273100ShandongChina

The Li-CO_(2)battery has been highly rated as an intriguing technique for balancing the carbon cycle for years,but it is still significantly challenged by the obstacles such as limited reversibility,sluggish kinetics,and poor energy ***,the design and development of advance catalysts that can enhance the kinetics and reversibility of the CO_(2)electrochemical cycling reactions are considered the imperative *** metal-based catalysts are widely considered appealing owing to their unfilled dorbitals,rich and adjustable valences,as well as *** this review,the working mechanism and the key issues of the CO_(2)electrochemical cycling reaction are discussed *** the strategies for composition and structure design of different type of transition metal-based catalysts are highlighted,including their benefits,limitations,and the ways to implement these ***,based on the pioneering research,the perspectives on the challenges and key points for the future development of cathode catalyst are proposed.

关键词： Li-CO_(2)battery Transition metal Cathode catalyst Catalytic mechanism

来源：评论

学校读者我要写书评

暂无评论

The synergistic enhancement of bending and compression properties of phosphate-activated metakaolin geopolymer by glass fiber and borax

引用

Structures 2025年 76卷

作者： Yang, Xingyuan He, Min Peng, Xinyu Ou, Zhihua School of Civil Engineering Hunan University of Technology Zhuzhou412007 China Intelligent Control of Safety and Risk for Existing Engineering Structures Key Laboratory of Hunan Province Zhuzhou412007 China Hunan Province Engineering Technology Research Center for New Materials of Building Wall Energy Conservation Hunan Zhuzhou412007 China

Phosphate-based geopolymer (PAG) is a new type of green and sustainable gel material. I has a simple preparation process, excellent and stable performance, and broad application prospects. However, adding excessive fibers to improve bending performance can introduce air, leading to a decrease in compressive strength. Therefore, the effects of glass fiber (GF) dosage (FD: 0.5–2 %) and borax dosage (BD: 0.5–4 %) on the flowability, compressive/flexural performance, and microstructure of glass fiber-borax synergistically reinforced geopolymer composites (BF/PAMG) were systematically investigated, alongside their enhancement and toughening mechanisms. The results indicated that when BD was 1 %, with the increase of FD, the flowability of BF/PAMG showed a decreasing trend, the compressive strength first increases and then decreases, and the bending strength, toughening, and fracture work all show a gradually increasing trend. When FD was 1 %, the compressive strength reached a maximum of 39 MPa, an increase of 31.36 %. When FD was 2 %, the bending strength and fracture work reached a maximum of 7.86 MPa and 608.13 J/m², respectively, an increase of 67.9 % and 226.51 %. When FD was 2 %, as BD increased, the toughening of BF/PAMG showed an increasing trend, while the compressive strength, bending strength, and fracture work first increased and then decreased, and the toughening showed a gradually decreasing trend. When BD was 2 %, the compressive strength reached a maximum of 40.02 MPa, an increase of 45.90 %;when BD was 1 %, the bending strength and fracture toughness reached a maximum of 7.86 MPa and 608.13 J/m², respectively, an increase of 33.67 % and 103.55 %. Microscopic analysis revealed that borax facilitated the geopolymerization reaction while simultaneously substituting partial Al-O bonds in both Berlinite (AlPO₄) crystals and gel phases with B-O bonds, leading to the formation of a novel three-dimensional gel network structure. This structural modification was

关键词： Glass fibers

来源：评论

学校读者我要写书评

暂无评论

Enhancing the performance of CaTiO3-GDC heterostructure electrolytes in LT-CFCs

引用

Ceramics International 2025年第15期51卷 20131-20142页

作者： Li, Dongchen Cui, Yingying Hong, Xiaofang Shah, M.A.K. Yousaf Mushtaq, Naveed Rauf, Sajid Arshad, Naila Irshad, Sultan Alodhayb, Abdullah N. Yousaf, Muhammad Lu, Yuzheng Department of Electrical and Automation Shandong Labor Vocational and Technical College Jinan250300 China Jiangsu Provincial Key Laboratory of Solar Energy Science and Technology/Energy Storage Joint Research Center School of Energy and Environment Southeast University No.2 Si Pai Lou Nanjing210096 China College of Mechatronics and Control Engineering Shenzhen University Guangdong Province 518000 China School of Physics Electronics and Intelligent Manufacturing Huaihua University Hunan Huaihua418008 China College of Electronics and Information Engineering Shenzhen University Guangdong Province 518000 China Department of Physics and Astronomy College of Science King Saud University Riyadh11451 Saudi Arabia College of Chemistry and Environmental Engineering Shenzhen University Guangdong Province Shenzhen518055 China School of Electronic Engineering Nanjing Xiaozhuang University Nanjing211171 China

Designing ceramic fuel cells (CFCs) with fast ionic conduction and superior electrochemical performance at low temperatures is critical for advancing hydrogen applications. Here, we developed a heterostructure electrolyte by combining the ionic conductor Gd0.1Ce0.9O2 (GDC) with the semiconductor material CaTiO3 (CTO) to shape into the composite heterostructure (semiconductor ionic heterostructure) CTO-GDC. The designed heterostructure with different fermi levels established the depletion zone due to the redistribution of charges at the interface, leading to enhancement of the ionic conduction;meanwhile, the established built-in electric field suppresses the electronic conduction speed of the ion's transportation at the interface of the constructed heterostructure (CTO-GDC). The formation of heterostructure introduces a number of oxygen vacancies, as confirmed via x-ray photoelectron spectroscopy (XPS) and electron paramagnetic resonance (EPR), benefiting the transportation of ions in the composite heterostructure. The prepared composite heterostructure shows the highest power output of 810 mW/cm2 at a low operational temperature of 520 °C. The CTO-GDC shows high ionic conductivity of 0.17 S cm−1 at 520 °C and low activation energy of 0.785 eV at 520-420 °C. The composite containing a 50 % molar ratio of GDC and CTO demonstrated exceptional performance by successfully inhibiting electron transit, improving ionic conductivity, and achieving outstanding power output. The enhanced ionic conductivity with low activation energy of composite heterostructure suggests that designing a heterostructure seems an efficient approach to fuel cell application. © 2025

关键词： Paramagnetic resonance

来源：评论

学校读者我要写书评

暂无评论

A physics-informed temporal convolutional network-temporal fusion transformer hybrid model for probabilistic wind speed predictions with quantile regression

引用

energy 2025年 326卷

作者： Mi, Lihua Han, Yan Long, Lizhi Chen, Hui Cai, C.S. College of Architecture and Energy Engineering Wenzhou University of Technology Wenzhou325035 China Hunan Province Research Center for Safety Control Technology and Equipment of Bridge Engineering Changsha University of Science & Technology Changsha410076 China School of Civil Engineering Hunan University Changsha410076 China Department of Bridge Engineering School of Transportation Southeast University Nanjing211189 China

Accurate wind speed prediction is crucial for mitigating the adverse effects of wind variability on power systems and facilitating the integration of wind energy into the grid. However, existing interval prediction studies often overlook the guidance from physics information and have not yet revealed the influence of physical constraints on interval prediction accuracy. This study presents two significant advances in probabilistic wind forecasting: First, we develop a novel physics-informed TCN-TFT hybrid model that uniquely integrates dilated causal convolutions (for multi-scale temporal feature extraction) with transformer-based attention mechanisms (for variable importance weighting), while enforcing physical consistency through Bernoulli's principle and the ideal gas law. Second, we introduce a joint optimization framework that minimizes quantile loss for uncertainty estimation and physics-based loss for meteorological consistency. Experimental results indicate that the proposed model outperforms comparative methods among four datasets, achieving lower PINAW and coverage width-based criterion (CWC) values while maintaining similar PICP values. For instance, in the two-step wind speed interval forecasting of dataset1, the PICP values achieve 0.986, 0.953, and 0.898, with corresponding PINAW values of 0.329, 0.247, and 0.214 for confidence levels of 0.95, 0.9, and 0.85, respectively. Furthermore, physical constraints enhance prediction interval reliability by boosting coverage (5.0 % PICP) with a modest width increase (27.1 % PINAW), outperforming unconstrained models that exhibit 320 % higher CWC due to coverage deficits. Overall, this novel approach effectively quantifies uncertainty in wind speed forecasts, demonstrating its potential for improved reliability in wind energy applications. © 2025 Elsevier Ltd

关键词： Fusion reactions

来源：评论

学校读者我要写书评

暂无评论

Cysteine and dialysis mediated inhibition of dynamic changes in glycosylated egg white protein during storage

引用

Food Chemistry 2025年 480卷 143819页

作者： Guo, Lulu Zhang, Wanqiu Zhang, Fan Hu, Shende Zhao, Qianwen Chang, Cuihua Li, Junhua Huang, Zijian Gu, Luping Yang, Yanjun Su, Yujie State Key Laboratory of Food Science and Resources School of Food Science and Technology Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province Jiangnan University Jiangsu Wuxi214122 China College of Bioscience and Biotechnology Hunan Agricultural University Hunan Changsha410128 China Hunan Jiapin Jiawei Technology Development Group Co. LTD Hunan Engineering & Technology Research Center for Food Flavors and Flavorings Hunan Jinshi415400 China

Glycosylation is commonly used to improve the solubility and functionality of egg white protein (EWP), but glycosylated EWP is prone to quality deterioration during storage. To enhance its storage stability, cysteine (Cys) addition and dialysis-based desugar treatment were applied to xylo-oligosaccharide (XOS) glycosylated EWP (GEW) in accelerated storage examinations. Both Cys addition and dialysis minimized changes in soluble protein content, color difference, and particle size during storage. Further, they inhibited the Maillard reaction and the accumulation of its intermediate products. Cys addition effectively maintained protein structures and prevented protein crosslinking. However, dialysis lost the filling and protective effect of free sugars, lowering the denaturation temperature of ovalbumin. Cys and dialysis effectively maintained the stability of emulsifying properties, while Cys better preserved gelation. Overall, both Cys addition and dialysis markedly enhanced the storage stability of GEW, with Cys proving to be more effective. © 2025 Elsevier Ltd

关键词： Cysteine Dialysis Egg white protein Glycosylation Maillard reaction Storage stability

来源：评论

学校读者我要写书评

暂无评论

Cysteine and Dialysis Mediated Inhibition of Dynamic Changes in Glycosylated Egg White Protein During Storage

SSRN

引用

SSRN 2025年

作者： Guo, Lulu Zhang, Wanqiu Zhang, Fan Hu, Shende Zhao, Qianwen Chang, Cuihua Li, Junhua Zhu, Min Gu, Luping Yang, Yanjun Su, Yujie Huang, Zijian State Key Laboratory of Food Science and Resources School of Food Science and Technology Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province Jiangnan University Jiangsu Wuxi214122 China College of Bioscience and Biotechnology Hunan Agricultural University Hunan Changsha410128 China Hunan Jiapin Jiawei Technology Development Group Co. LTD Hunan Engineering & Technology Research Center for Food Flavors and Flavorings Hunan Jinshi415400 China

Glycosylation is commonly used to improve the solubility and functionality of egg white protein (EWP), but glycosylated EWP is prone to quality deterioration during storage. To enhance its storage stability, cysteine (Cys) addition and dialysis desugar treatment were applied to xylo-oligosaccharide (XOS) glycosylated EWP (GEW) in accelerated storage examinations. Both Cys addition and dialysis minimized changes in soluble protein content, color difference, and particle size during storage. Further, they inhibited the Maillard reaction and the accumulation of its intermediate products. Cys addition effectively maintained protein structures and prevented protein crosslinking. However, dialysis lost the filling and protective effect of free sugars, lowering the denaturation temperature of ovalbumin. Cys and dialysis effectively maintained the stability of emulsifying properties, while cysteine better preserved gelation. Overall, both Cys addition and dialysis effectively enhanced the storage stability of GEW, with Cys proving to be more effective. © 2025, The Authors. All rights reserved.

关键词： Reaction intermediates

来源：评论

学校读者我要写书评

暂无评论

A critical role for Phocaeicola vulgatus in negatively impacting metformin response in diabetes

引用

Acta Pharmaceutica Sinica B 2025年第5期15卷 2511-2528页

作者： Chen, Manyun Peng, Yilei Hu, Yuhui Kang, Zhiqiang Chen, Ting Zhang, Yulong Chen, Xiaoping Li, Qing Yuan, Zuyi Wu, Yue Xu, Heng Zhou, Gan Liu, Tao Zhou, Honghao Yuan, Chunsu Huang, Weihua Zhang, Wei Department of Clinical Pharmacology Xiangya Hospital Central South University Changsha 410008 China Engineering Research Center of Applied Technology of Pharmacogenomics Ministry of Education Changsha 410078 China Hunan Key Laboratory of Pharmacomicrobiomics Changsha 410078 China National Clinical Research Center for Geriatric Disorders Changsha 410008 China Zhengzhou Central Hospital Affiliated to Zhengzhou University Zhengzhou University Zhengzhou 450007 China Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases Hunan University of Chinese Medicine Changsha 410208 China Department of Cardiology Cardiovascular Research Center First Affiliated Hospital of Xi'an Jiaotong University Xi'an 710061 China Department of Laboratory Medicine National Key Laboratory of Biotherapy/ Collaborative Innovation Center of Biotherapy and Cancer Center West China Hospital Sichuan University Chengdu 610041 China Shenzhen Center for Chronic Disease Control and Prevention Shenzhen 518020 China Department of Anesthesia and Critical Care University of Chicago Chicago 60637 IL United States

Metformin has been demonstrated to attenuate hyperglycaemia by modulating the gut microbiota. However, the mechanisms through which the microbiome mediates metformin monotherapy failure (MMF) are unclear. Herein, in a prospective clinical cohort study of newly diagnosed type 2 diabetes mellitus (T2DM) patients treated with metformin monotherapy, metagenomic sequencing of faecal samples revealed that Phocaeicola vulgatus abundance was approximately 12 times higher in nonresponders than in responders. P. vulgatus rapidly hydrolysed taurine-conjugated bile acids, leading to ceramide accumulation and reversing the improvements in glucose intolerance conferred by metformin in high-fat diet-fed mice. Interestingly, C22:0 ceramide bound to mitochondrial fission factor to induce mitochondrial fragmentation and impair hepatic oxidative phosphorylation in P. vulgatus-colonized hyperglycaemic mice, which could be exacerbated by metformin. This work suggests that metformin may be unsuitable for P. vulgatus-rich T2DM patients and that clinicians should be aware of metformin toxicity to mitochondria. Suppressing P. vulgatus growth with cefaclor or improving mitochondrial function using adenosylcobalamin may represent simple, safe, effective therapeutic strategies for addressing MMF. © 2025 The Authors

关键词： Ceramide Deconjugated bile acids Farnesoid X receptor Gut microbiota Metformin resistance Mitochondrial dysfunction Oxidative phosphorylation Thermogenesis

来源：评论

学校读者我要写书评

暂无评论

Fractional-order Sliding Mode control Strategy for Quasi-Z Source Photovoltaic Grid-Connected Inverter 3

Fractional-order Sliding Mode Control Strategy for Quasi-Z S...

引用

3rd IEEE Conference on energy Internet and energy System Integration, EI2 2019

作者： Pan, Meichen Chen, Caixue Zhang, Da Xiangtan University College of Information Engineering Xiangtan China Hunan Province Engineering Research Center for Multi-Energy Collaborative Control Technology Xiangtan China

ISBN: (纸本)9781728131375

In order to improve the robustness and increase the fast response, a novel current controller with the fractional-order sliding mode control is proposed for the quasi-Z source inverter (qZSI). The state space equations of the qZSI are established, and the sliding surface of the proposed controller is built when the inductor current error between the reference and actual one is used as the state variable. Moreover, the stable, existence and arrival conditions of the sliding surface are derived. Simulations study on a MATLAB model shows that the proposed controller can achieve a faster dynamic response and realize stable and robust when the qZSI works in a wide input range compared to the traditional PI controller. © 2019 IEEE.

关键词： Sliding mode control

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：