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Fe-doped Co_(3)O_(4) nanowire strutted 3D pinewood-derived carbon: A highly selective electrocatalyst for ammonia production via nitrate reduction

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Nano Research 2024年第4期17卷 2276-2282页

作者： Xuwei Liu Chaozhen Liu Xun He zhengwei Cai Kai Dong Jun Li Xiaoya Fan Ting Xie Xiya Yang Yonglan Luo dongdong zheng Shengjun Sun Sulaiman Alfaifi Feng Gong Xuping Sun Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education School of Energy and EnvironmentSoutheast UniversityNanjing 211189China College of Chemistry Chemical Engineering and Materials ScienceShandong Normal UniversityJinan 250014China Chemistry Department Frontier of ScienceKing Abdulaziz UniversityJeddah 21589Saudi Arabia

Nitrate(NO_(3)^(-)),a nitrogen-containing pollutant,is prevalent in aqueous solutions,contributing to a range of environmental and health-related issues.The electrocatalytic reduction of NO_(3)^(-)holds promise as a sustainable approach to both eliminating NO_(3)^(-)and generating valuable ammonia(NH_(3)).Nevertheless,the reduction reaction of NO_(3)^(-)(NO_(3)^(-)RR),involving 8-electron transfer process,is intricate,necessitating highly efficient electrocatalysts to facilitate the conversion of NO_(3)^(-)to NH_(3).In this study,Fe-doped Co_(3)O_(4) nanowire strutted three-dimensional(3D)pinewood-derived carbon(Fe-Co_(3)O_(4)/PC)is proposed as a high-efficiency NO_(3)^(-)RR electrocatalyst for NH_(3) production.Operating within 0.1 M NaOH containing NO_(3)^(-),Fe-Co_(3)O_(4)/PC demonstrates exceptional performance,obtain an impressively large NH_(3) yield of 0.55 mmol·h^(-1)·cm^(-2) and an exceptionally high Faradaic efficiency of 96.5%at-0.5 V,superior to its Co_(3)O_(4)/PC counterpart(0.2 mmol·h^(-1)·cm^(-2),73.3%).Furthermore,the study delves into the reaction mechanism of Fe-Co_(3)O_(4) for NO_(3)^(-)RR through theoretical calculations.

关键词： Fe-doped Co_(3)O_(4) nanowire pinewood-derived carbon electrocatalytic NO_(3)-reduction NH_(3) synthesis density functional theory

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Electrocatalytic synthesis of C-N coupling compounds from CO_(2) and nitrogenous species

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SusMat 2024年第2期4卷 51-74页

作者： zheng Zhang Danyang Li Yunchuan Tu Jiao Deng Huiting Bi Yongchao Yao Yan Wang Tingshuai Li Yongsong Luo Shengjun Sun dongdong zheng Sónia A.C.Carabineiro Zhou Chen Junjiang Zhu Xuping Sun Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing&Finishing College of Chemistry and Chemical EngineeringWuhan Textile UniversityWuhanHubeiChina School of Chemistry and Chemical Engineering Chongqing UniversityChongqingChina i-Lab Vacuum Interconnected NanotechWorkstation(Nano-X)Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhouJiangsuChina Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengduSichuanChina College of Chemistry Chemical Engineering and Materials ScienceShandong Normal UniversityJinanShandongChina LAQV-REQUIMTE Department of ChemistryNOVA School of Science and TechnologyUniversidade NOVA de Lisboa2829-516 CaparicaPortugal College of Materials Xiamen UniversityXiamenFujianChina

The electrocatalytic synthesis of C-N coupling compounds from CO_(2) and nitrogenous species not only offers an effective avenue to achieve carbon neutral-ity and reduce environmental pollution,but also establishes a route to synthesize valuable chemicals,such as urea,amide,and amine.This innovative approach expands the application range and product categories beyond simple carbona-ceous species in electrocatalytic CO_(2) reduction,which is becoming a rapidly advancing field.This review summarizes the research progress in electrocatalytic urea synthesis,using N_(2),NO_(2)^(-),and NO_(3)^(-)as nitrogenous species,and explores emerging trends in the electrosynthesis of amide and amine from CO_(2) and nitro-gen species.Additionally,the future opportunities in this field are highlighted,including electrosynthesis of amino acids and other compounds containing C-N bonds,anodic C-N coupling reactions beyond water oxidation,and the catalytic mechanism of corresponding reactions.This critical review also captures the insights aimed at accelerating the development of electrochemical C-N coupling reactions,confirming the superiority of this electrochemical method over the traditional techniques.

关键词： C-N coupling CO_(2) reduction electrocatalysis nitrogenous species reaction mechanism

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Enhancing the stability of Ni Fe-layered double hydroxide nanosheet array for alkaline seawater oxidation by Ce doping

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Journal of Energy Chemistry 2024年第4期91卷 306-312页

作者： Yongchao Yao Shengjun Sun Hui Zhang Zixiao Li Chaoxin Yang zhengwei Cai Xun He Kai Dong Yonglan Luo Yan Wang Yuchun Ren Qian Liu dongdong zheng Weihua Zhuang Bo Tang Xuping Sun Wenchuang(Walter)Hu Department of Laboratory Medicine West China HospitalSichuan UniversityChengdu 610041SichuanChina College of Chemistry Chemical Engineering and Materials ScienceShandong Normal UniversityJinan 250014ShandongChina Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054SichuanChina Institute for Advanced Study Chengdu UniversityChengdu 610106SichuanChina Laoshan Laboratory Qingdao 266237ShandongChina

Electrocatalytic hydrogen production from seawater holds enormous promise for clean energy generation.Nevertheless,the direct electrolysis of seawater encounters significant challenges due to poor anodic stability caused by detrimental chlorine chemistry.Herein,we present our recent discovery that the incorporation of Ce into Ni Fe layered double hydroxide nanosheet array on Ni foam(Ce-Ni Fe LDH/NF)emerges as a robust electrocatalyst for seawater oxidation.During the seawater oxidation process,CeO_(2)is generated,effectively repelling Cl^(-)and inhibiting the formation of Cl O-,resulting in a notable enhancement in the oxidation activity and stability of alkaline seawater.The prepared Ce-Ni Fe LDH/NF requires only overpotential of 390 m V to achieve the current density of 1 A cm^(-2),while maintaining long-term stability for 500 h,outperforming the performance of Ni Fe LDH/NF(430 m V,150 h)by a significant margin.This study highlights the effectiveness of a Ce-doping strategy in augmenting the activity and stability of materials based on Ni Fe LDH in seawater electrolysis for oxygen evolution.

关键词： Ce doping NiFe layered double hydroxide Seawater oxidation Electrocatalysis Cl^(-) repulsion

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Durable K-ion batteries with 100%capacity retention up to 40,000 cycles

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Carbon Energy 2024年第5期6卷 201-212页

作者： Xianlu Lu Zhao Liang Zhi Fang dongdong Zhang Yapeng zheng Qiao Liu Dingfa Fu Jie Teng Weiyou Yang Institute of Micro/Nano Materials and Devices Ningbo University of TechnologyNingboZhejiangChina College of Materials Science and Engineering Hunan UniversityChangshaChina College of Mechanical and Vehicle Engineering Hunan UniversityChangshaChina

Currently,the major challenge in terms of research on K-ion batteries is to ensure that they possess satisfactory cycle stability and specific capacity,especially in terms of the intrinsically sluggish kinetics induced by the large radius of K+ions.Here,we explore high-performance K-ion half/full batteries with high rate capability,high specific capacity,and extremely durable cycle stability based on carbon nanosheets with tailored N dopants,which can alleviate the change of volume,increase electronic conductivity,and enhance the K+ion adsorption.The as-assembled K-ion half-batteries show an excellent rate capability of 468 mA h g^(−1) at 100 mA g^(−1),which is superior to those of most carbon materials reported to date.Moreover,the as-assembled half-cells have an outstanding life span,running 40,000 cycles over 8 months with a specific capacity retention of 100%at a high current density of 2000 mA g^(−1),and the target full cells deliver a high reversible specific capacity of 146 mA h g^(−1) after 2000 cycles over 2 months,with a specific capacity retention of 113%at a high current density of 500 mA g^(−1),both of which are state of the art in the field of K-ion batteries.This study might provide some insights into and potential avenues for exploration of advanced K-ion batteries with durable stability for practical applications.

关键词： carbon nanosheet cycle stability K-ion batteries rate performance specific capacity

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Porcine enteric alphacoronavirus infection increases lipid droplet accumulation to facilitate the virus replication

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Journal of Integrative Agriculture 2024年第3期23卷 988-1005页

作者： Qi Gao Yongzhi Feng Ting Gong dongdong Wu Xiaoyu zheng Yizhuo Luo Yunlong Yang Zebu Song Lang Gong Guihong Zhang Guangdong Provincial Key Laboratory of Zoonosis Prevention and Control College of Veterinary MedicineSouth China Agricultural UniversityGuangzhou 510642China Maoming Branch Guangdong Laboratory for Lingnan Modern AgricultureMaoming 525000China Key Laboratory of Animal Vaccine Development Ministry of Agriculture and Rural AffairsGuangzhou 510000China Guangdong Laboratory for Lingnan Modern Agriculture Guangzhou 510642China

Coronaviruses are widely transmissible between humans and animals, causing diseases of varying severity. Porcine enteric alphacoronavirus(PEAV) is a newly-discovered pathogenic porcine enteric coronavirus in recent years, which causes watery diarrhea in newborn piglets. The host inflammatory responses to PEAV and its metabolic regulation mechanisms remain unclear, and no antiviral studies have been reported. Therefore, we investigated the pathogenic mechanism and antiviral drugs of PEAV. The transcriptomic analysis of PEAV-infected host cells revealed that PEAV could upregulate lipid metabolism pathways. In lipid metabolism, steady-state energy processes, which can be mediated by lipid droplets(LDs), are the main functions of organelles. LDs are also important in viral infection and inflammation. In infected cells, PEAV increased LD accumulation, upregulated NF-κB signaling, promoted the production of the inflammatory cytokines IL-1β and IL-8, and induced cell death. Inhibiting LD accumulation with a DGAT-1 inhibitor significantly inhibited PEAV replication, downregulated the NF-κB signaling pathway, reduced the production of IL-1β and IL-8, and inhibited cell death. The NF-κB signaling pathway inhibitor BAY11-7082 significantly inhibited LD accumulation and PEAV replication. Metformin hydrochloride also exerted anti-PEAV effects and significantly inhibited LD accumulation, downregulated the NF-κB signaling pathway, reduced the production of IL-1β and IL-8, and inhibited cell death. LD accumulation in the lipid metabolism pathway therefore plays an important role in the replication and pathogenesis of PEAV, and metformin hydrochloride inhibits LD accumulation and the inflammatory response to exert anti-PEAV activity and reducing pathological injury. These findings contribute new targets for developing treatments for PEAV infections.

关键词： porcine enteric alphacoronavirus NF-κB inflammatory pathway lipid droplet metformin hydrochloride

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Biomimetic nanoparticles drive the mechanism understanding of shear-wave elasticity stiffness in triple negative breast cancers to predict clinical treatment

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Bioactive Materials 2023年第4期22卷 567-587页

作者： dongdong zheng Jin Zhou Lang Qian XueJiao Liu Cai Chang Shuang Tang Hongbo Zhang Shichong Zhou Department of Ultrasound Fudan University Shanghai Cancer CenterShanghai200032PR China Pharmaceutical Sciences Laboratory Åbo Akademi UniversityFI-00520TurkuFinland Cancer Institute Fudan University Shanghai Cancer CenterShanghai200032PR China Institutes of Biomedical Sciences and Department of Chemistry Fudan UniversityShanghai200032PR China Department of Nuclear Medicine Fudan University Shanghai Cancer CenterShanghai200032PR China Turku Bioscience Center University of Turku andÅbo Akademi UniversityFI-00520TurkuFinland The First Affiliated Hospital of Wenzhou Medical University Wenzhou325000PR China

In clinical practice,we noticed that triple negative breast cancer(TNBC)patients had higher shear-wave elasticity(SWE)stiffness than non-TNBC patients and a higherα-SMA expression was found in TNBC tissues than the non-TNBC tissues.Moreover,SWE stiffness also shows a clear correlation to neoadjuvant response efficiency.To elaborate this phenomenon,TNBC cell membrane-modified polylactide acid-glycolic acid(PLGA)nanoparticle was fabricated to specifically deliver artesunate to regulate SWE stiffness through inhibiting CAFs functional status.As tested in MDA-MB-231 and E0771 orthotopic tumor models,CAFs functional status inhibited by 231M-ARS@PLGA nanoparticles(231M-AP NPs)had reduced the SWE stiffness as well as attenuated hypoxia of tumor as tumor soil loosening agent which amplified the antitumor effects of paclitaxel and PD1 inhibitor.Single-cell sequencing indicated that the two main CAFs(extracellular matrix and wound healing CAFs)that produces extracellular matrix could influence the tumor SWE stiffness as well as the antitumor effect of drugs.Further,biomimetic nanoparticles inhibited CAFs function could attenuate tumor hypoxia by increasing proportion of inflammatory blood vessels and oxygen transport capacity.Therefore,our finding is fundamental for understanding the role of CAFs on affecting SWE stiffness and drugs antitumor effects,which can be further implied in the potential clinical theranostic predicting in neoadjuvant therapy efficacy through non-invasive analyzing of SWE imaging.

关键词： Cancer-associated fibroblasts Biomimetic nanoparticles Shear-wave elasticity imaging Theranostic prediction

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N, O-doped carbon foam as metal-free electrocatalyst for efficient hydrogen production from seawater

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Nano Research 2022年第10期15卷 8922-8927页

作者： Qian Liu Shengjun Sun Longcheng Zhang Yongsong Luo Qin Yang Kai Dong Xiaodong Fang dongdong zheng Abdulmohsen Ali Alshehri Xuping Sun Institute for Advanced Study Chengdu UniversityChengdu 610106China Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China Chemistry Department Faculty of ScienceKing Abdulaziz UniversityP.O.Box 80203Jeddah 21589Saudi Arabia College of Chemistry Chemical Engineering and Materials ScienceShandong Normal UniversityJinan 250014China

Seawater electrolysis is the most promising technology for large scale hydrogen production due to the abundance and low cost of seawater in nature.However,compared with the traditional freshwater electrolysis,the issues of electrode poisoning and corrosion will occur during the seawater electrolysis process,and active and stable electrocatalysts for the hydrogen evolution reaction(HER)are thus highly desired.In this work,N,O-doped carbon foam in-situ derived from commercial melamine foam is proposed as a high-active metal-free HER electrocatalyst for seawater splitting.In acidic seawater,our catalyst shows high hydrogen generation performance with small overpotential of 161 mV at 10 mA·cm^(−2),a low Tafel slop of 97.5 mV·dec^(−1),and outstanding stability.

关键词： carbon foam hydrogen evolution reaction seawater electrolysis electrocatalyst

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织物基金属有机框架复合材料的制备及应用研究进展

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材料工程 2024年第2期52卷 92-101页

作者：刘冬冬刘秀明房宽峻李政巩继贤李秋瑾天津工业大学纺织科学与工程学院天津300387 青岛大学生物多糖纤维成形与生态纺织国家重点实验室山东青岛266071 生态纺织省部共建协同创新中心山东青岛266071

金属有机框架(metal-organic frameworks,MOFs)材料作为第三代多孔材料,因其高比表面积、高稳定性、化学可调性等功能特性而备受关注,尤其在各种轻质和柔性基材上负载应用成为该领域的热点研究方向。本文综述了纺织基材作为载体,负载MOF... 详细信息

金属有机框架(metal-organic frameworks,MOFs)材料作为第三代多孔材料,因其高比表面积、高稳定性、化学可调性等功能特性而备受关注,尤其在各种轻质和柔性基材上负载应用成为该领域的热点研究方向。本文综述了纺织基材作为载体,负载MOFs的进展,对以溶剂热法、逐层生长法、喷涂打印法等构建织物基MOFs复合材料的方式进行阐述,且根据制备方式的差异性指出不同制备方式的应用场景;归纳了该类材料的复合机理;针对复合材料的使用耐久性总结了现有增强MOFs与基底材料结合牢固性的方法,并介绍了该类复合材料在超疏水自清洁、自消毒纺织品等领域应用的最新研究成果。最后指出织物基MOFs复合材料的大规模生产方式以及在现实环境条件下的耐久性是迈向广泛应用的关键步骤,其更多的一体化功能是未来研究的重点方向。

关键词：金属有机框架材料纺织材料制备方法应用性能

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Plasma HGF and OPN as Potential Biomarkers of Pulmonary Arterial Hypertension in Congenital Heart Disease

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Congenital Heart Disease 2021年第4期16卷 373-381页

作者： dongdong zheng Chi Shen Wenshi Liu Wenjing Lv Xiaofei Li Department of Cardiovascular Internal Medicine Affiliated Hospital of Nantong UniversityNantong226001China Department of Cardiovascular Internal Medicine Tongzhou People’s Hospital Affiliated to Nantong UniversityNantong226300China

Objectives:Pulmonary arterial hypertension in congenital heart disease(PAH-CHD)is the most common type of PAH and increases morbidity and mortality in patients with CHD.Right heart catheterization(RHC)is the standard method to diagnose PAH.However,RHC is an invasive and complicated method with relatively high cost.Noninvasive,feasible,and cost-efficient methods are urgently needed.The objective of this study was to evaluate three potential biomarkers of PAH-CHD:Hepatocyte growth factor(HGF),osteopontin(OPN),and suppression of tumorigenicity 2(ST2).Methods:Plasma samples were collected from patients with CHD(n=46)and healthy individuals(n=22)and divided into four groups according to the severity of PAH.The levels of HGF,OPN,and ST2 were then analyzed using an enzyme-linked immunosorbent assay.Correlations between HGF,OPN,ST2,and clinical parameters of PAH-CHD were analyzed.Results:The plasma HGF levels in the moderate to the severe group were significantly higher than those in the mild group,nonPAH group,and healthy control group(p<0.05).Derived from a receiver operating characteristic(ROC)curve analysis,a cut-off value of 356.75 ng/ml for the HGF concentration was able to predict PAH-CHD with 53%sensitivity and 89%specificity.The HGF level was positively related to pulmonary arterial systolic pressure(PASP)(r=0.36,p<0.05)and pulmonary vascular resistance(PVR)(r=0.36,p<0.05).Plasma OPN levels in the mild group were significantly higher than other groups and positively correlated with the pulmonary-systemic shunt ratio(Qp/Qs)(r=0.33,p<0.05).There was no statistically significant between-group difference in plasma soluble ST2(sST2)levels.Conclusion:The plasma HGF level was elevated in PAH-CHD patients and can be used as a potential biomarker.The plasma OPN level was positively correlated with the Qp/Qs.

关键词： Congenital heart disease pulmonary hypertension hepatocyte growth factor osteopontin suppression of tumorigenicity 2 biomarker

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RBCC动力巡航飞行器爬升段弹道优化

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火箭推进 2024年第2期50卷 49-56页

作者：徐铮谭建国张冬冬国防科技大学高超声速技术实验室湖南长沙410073

RBCC动力飞行器爬升段弹道设计是其总体设计的重要问题之一。采用伪谱法对基于RBCC动力的巡航飞行器开展了弹道优化研究。以爬升段推进剂消耗量最小为性能目标,以飞行攻角为设计变量,建立了飞行器纵向平面内弹道优化模型,在获得飞行器... 详细信息

RBCC动力飞行器爬升段弹道设计是其总体设计的重要问题之一。采用伪谱法对基于RBCC动力的巡航飞行器开展了弹道优化研究。以爬升段推进剂消耗量最小为性能目标,以飞行攻角为设计变量,建立了飞行器纵向平面内弹道优化模型,在获得飞行器气动特性和RBCC发动机性能的基础上,开展了爬升段弹道优化。结果表明:最优弹道包括平飞加速、等动压爬升、等速爬升等阶段;火箭发动机应当以“开-关-开”模式工作,且火箭发动机无需大范围调节;在适当的火箭发动机最大流量和动压约束下,该飞行器的动力段航程达到2430 km。

关键词：火箭基组合循环发动机巡航飞行器爬升段弹道优化

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