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Journal of Materials Science & Technology 2024年第2期169卷 105-114页

作者： Deqing He Chunyu zhu Yutao Huo zhonghao rao School of Energy and Environmental Engineering Hebei University of TechnologyTianjin 300401China Hebei Key Laboratory of Thermal Science and Energy Clean Utilization Hebei University of TechnologyTianjin 300401China School of Low-carbon Energy and Power Engineering China University of Mining and TechnologyXuzhou 221116China

The sluggish redox reaction kinetics of lithium polysulfides(LiPSs)are considered the main obstacle to the commercial application of lithium-sulfur(Li-S)*** accelerate the conversion by catalysis and inhibit the shuttling of soluble LiPSs in Li-S batteries,a solution is proposed in this *** solution involves fabrication of n,S co-doped carbon coated In_(2)O_(3)/In_(2)S_(3)heterostructure(In_(2)O_(3)-In_(2)S_(3)@nSC)as a multifunctional host material for the *** In_(2)O_(3)-In_(2)S_(3)@nSC composite can reduce the Gibbs free energy for the conversion reactions of LiPSs,which results in superior *** synergy between different components in In_(2)O_(3)-In_(2)S_(3)@nSC and the unique 3D structure facilitate ion and electron transport in Li-S *** In_(2)O_(3)-In_(2)S_(3)@nSC/Li 2 S 6 cathode exhibits excellent rate capacity,with a capacity of 599 mAh g−1 at 5.5 C,and good cycle stability,with a capacity of 436 mAh g^(−1)after 1000 cycles at 1 ***,this study proposes a promising solution to improve the energy storage properties of Li-S batteries,which could potentially facilitate the commercialization of Li-S batteries.

关键词： Li-S battery Multifunctional host material Synergy Heterostructures Energy storage properties

Cu,n codoped carbon nanosheets encapsulating ultrasmall Cu nanoparticles for enhancing selective 1,2-propanediol oxidation

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Journal of Energy Chemistry 2024年第4期91卷 27-35页

作者： Yonghai Feng Min Yu Minjia Meng Lei Liu Dewei rao Institute for Advanced Materials School of Materials Science and EngineeringJiangsu UniversityZhenjiang 212013JiangsuChina School of Chemistry and Chemical Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina

In the selective oxidation of biomass-based 1,2-propanediol(PDO)with oxygen as the terminal oxidant,it is challenging to improve the lactic acid(LA)selectivity for nonnoble metal nanoparticles(nPs)due to their limited oxygen reduction rate and easy C-C *** the high economic feasibility of nonnoble metals,i.e.,Cu,in this work,copper and nitrogen codoped porous carbon nanosheets encapsulating ultrafine Cu nanoparticles(Cu@Cu-n-C)were developed to realize highly selective of PDO oxidation to *** carbon-encapsulated ultrasmall Cu^(0)nPs in Cu@Cu-n-C have high PDO dehydrogenation activity while n-coordinated Cu(Cu-n)sites are responsible for the high oxygen reduction ***,the performance of catalytic PDO conversion to LA is optimized by a proposed pathway of PDO→hydroxylacetone→lactaldehyde→***,the enhanced LA selectivity is 88.5%,and the PDO conversion is up to 75.1%in an O_(2)-pressurized reaction system(1.0 MPa O_(2)),superior to other Cu-based catalysts,while in a milder nonpressurized system(O_(2)flow rate of 100 mL min-1),a remarkable LA selectivity(94.2%)is obtained with 39.8%PDO conversion,2.2 times higher than that of supported Au nanoparticles(1%Au/C).Moreover,carbon encapsulation offers Cu@Cu-n-C with strong leaching resistance for better recycling.

关键词： Selective oxidation Copper and nitrogen doped carbon 1,2-Propanediol Ultrasmall Cu nanoparticles Lactic acid

Efficient Communication in Wireless Sensor networks Using Optimized Energy Efficient Engroove Leach Clustering Protocol

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Tsinghua Science and Technology 2024年第4期29卷 985-1001页

作者： n.Meenakshi Sultan Ahmad A.V.Prabu J.nageswara rao nashwan Adnan Othman Hikmat A.M.Abdeljaber R.Sekar Jabeen nazeer SRM Institute of Science and Technology KattankulathurChennai 603203India Department of Computer Science College of Computer Engineering and SciencesPrince Sattam Bin Abdulaziz UniversityAlkharj 11942Saudi Arabia University Center for Research and Development(UCRD) Department of Computer Science and EngineeringChandigarh UniversityGharuanMohali 140413India Department of ECE Koneru Lakshmaiah Education FoundationVaddeswaramGuntur 522502India Department of Computer Science and Engineering Lakireddy Balireddy College of Engineering(A)NTR District 521230India Department of Computer Engineering College of EngineeringKnowledge UniversityErbil 44001Iraq Department of Computer Science Faculty of Information TechnologyApplied Science Private UniversityAmman 11937Jordan Department of Electronics and Communication Engineering(ECE) School of EngineeringPresidency UniversityBangalore 834001India

The Wireless Sensor network(WSn)is a network that is constructed in regions that are inaccessible to human *** widespread deployment of wireless micro sensors will make it possible to conduct accurate environmental monitoring for a use in both civil and military *** make use of these data to monitor and keep track of the physical data of the surrounding environment in order to ensure the sustainability of the *** data have to be picked up by the sensor,and then sent to the sink node where they may be *** nodes of the WSns are powered by batteries,therefore they eventually run out of *** energy restriction has an effect on the network life span and environmental *** objective of this study is to further improve the Engroove Leach(EL)protocol’s energy efficiency so that the network can operate for a very long time while consuming the least amount of *** lifespan of WSns is being extended often using clustering and routing *** Meta Inspired Hawks Fragment Optimization(MIHFO)system,which is based on passive clustering,is used in this study to do *** cluster head is chosen based on the nodes’residual energy,distance to neighbors,distance to base station,node degree,and node *** on distance,residual energy,and node degree,an algorithm known as Heuristic Wing Antfly Optimization(HWAFO)selects the optimum path between the cluster head and Base Station(BS).They examine the number of nodes that are active,their energy consumption,and the number of data packets that the BS *** overall experimentation is carried out under the MATLAB *** the analysis,it has been discovered that the suggested approach yields noticeably superior outcomes in terms of throughput,packet delivery and drop ratio,and average energy consumption.

关键词： wireless sensor networks energy efficient engroove leach protocol meta inspired Hawks fragment optimization heuristic wing antfly optimization

Regulating the electronic structure of Ir single atoms by ZrO_(2)nanoparticles for enhanced catalytic oxidation of formaldehyde at room temperature

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Chinese Chemical Letters 2024年第7期35卷 200-205页

作者： Shiqi Peng Yongfang rao Tan Li Yufei zhang Jun-ji Cao Shuncheng Lee Yu Huang Key Laboratory of Aerosol Chemistry&Physics State Key Laboratory of Loess and Quaternary Geology(SKLLQG)Institute of Earth EnvironmentChinese Academy of Sciences(CAS)Xi’an 710061China School of Human Settlements and Civil Engineering Xi’an Jiaotong UniversityXi’an 710049China Department of Environmental Science and Engineering Xi’an Jiaotong UniversityXi’an 710049China Faculty of Chemical Engineering Kunming University of Science and TechnologyKunming 650500China School of Environment and Energy South China University of TechnologyGuangzhou 51006China School of Environmental and Municipal Engineering Xi’an University of Architecture and TechnologyXi’an 710055China Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100190China Department of Civil and Environmental Engineering The Hong Kong Polytechnic UniversityHong KongChina CAS Center for Excellence in Quaternary Science and Global Change Xi’an 710061China

Developing low-loading single-atom catalysts with superior catalytic activity and selectivity in formaldehyde(HCHO)oxidation at room temperature remains ***,ZrO_(2)nanoparticles coupled low-loading Ir single atoms in n-doped carbon(Ir_(1)-n-C/ZrO_(2))was *** optimal Ir_(1)-n-C/ZrO_(2)with 0.25 wt%Ir loading delivers the high HCHO removal and conversion efficiency(>95%)at 20℃,which is higher than that over Ir_(1)-n-C with the same Ir *** specific rate can reach 1285.6 mmol gIr^(-1)h^(-1),surpassing the Ir based catalysts reported to *** functional theory calculation results and electron spin resonance spectra indicate that the introduction of Zr O_(2)nanoparticles modulate the electronic structure of the Ir single atoms,promoting O_(2)activation to·O_(2)^(–).Moreover,the Ir-C-Zr channel is favorable for the dissociation of·O_(2)^(–)to active oxygen atom(*O),and further accelerates the transformation of HCHO and intermediates(dioxymethylene and formates)to CO_(2)and H_(2)*** work provides a facile strategy to design low-loading single-atom catalysts with high catalytic activity toward HCHO oxidation.

关键词： ZrO_(2)nanoparticles Ir single atoms Electronic structure Formaldehyde Catalytic oxidation

Fine-tuning redox ability of arylene-bridged bis(benzimidazolium)for electrochromism and visible-light photocatalysis

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Chinese Chemical Letters 2024年第9期35卷 140-144页

作者： Jing Wang Zenghui Li Xiaoyang Liu Bochao Su Honghong Gong Chao Feng Guoping Li Gang He Bin rao School of Chemistry Engineering Research Center of Energy Storage Materials and DevicesMinistry of EducationXi’an Key Laboratory of Sustainable Energy Materials ChemistryXi’an Jiaotong UniversityXi’an 710054China Frontier Institute of Science and Technology Xi’an Jiaotong UniversityXi’an 710054China Instrumental Analysis Center Xi’an Jiaotong UniversityXi’an 710049China

In this study,a series of arylene-bridged bis(benzimidazolium)triflates 1^(–)6^(^(2+))·2[OTf^(–)]were synthesized by grafting differentπ-linkers with benzimidazolium *** them,compound 1^(2+)·2[OTf^(–)]with anthracene as the linker exhibited remarkable electron transfer capabilities across four distinct redox *** inclusion of an anthracene unit as theπ-linker contributes to its exceptional redox and optoelectronic ***,1^(2+)·2[OTf^(–)]was successfully utilized as both an electrochromic molecule in an ECD under applied voltage for the first time,and a highly efficient photocatalyst for the formation of carbon–phosphorus bonds via visible-light-induced cross-dehydrogenative coupling reactions.

关键词： n-Heterocyclic carbenes(nHCs) Ionic radicals Electrochromism Photocatalysis

First spectroscopic study of HFRC plasma

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Plasma Science and Technology 2024年第8期26卷 18-24页

作者：毛安程芝峰饶波杨菁珉张明 International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics State Key Laboratory of Advanced Electromagnetic TechnologyWuhan 430074People’s Republic of China School of Electrical and Electronic Engineering Huazhong University of Science and TechnologyWuhan 430074People’s Republic of China

An advanced spectral diagnostic system was developed to measure the electron temperature(T_(e)),electron density(n_(e)),and ion temperature(T_(i))of the Huazhong University of Science and Technology field-reversed configuration *** system consists of an optic fiber spectrometer with a wide spectral band and a 670 mm focal length high throughout Czerny-Turner monochromator equipped with both a 3600 g mm^(-1)grating and a 2400 g mm^(-1)grating to measure the line *** these components is an electronmultiplying charge-coupled device camera to capture spectral *** relative intensity of the optical fiber spectrometer was calibrated using a standard luminance source,and the wavelength calibration of the spectrometer was accomplished using a Hg/Ar *** diagnostic setup was configured to measure electron density based on the Stark effect of H_γ(n=5→n=2;434.04 nm).Doppler broadening of an OⅢ(2s^(2)2p(^(2)P^(0))3p→2s^(2)2p(^(2)P^(0))3s;375.988 nm)emission line was measured and analyzed to obtain the ion temperature,and electron temperatures were estimated from the relative strength of H_(β)(n=4→n=2;486.14 nm)(D_(β))and H_(γ)(D_(γ))spectral lines when the electron density was obtained from Stark effect *** initial experimental results indicate that the highest electron temperature of the formation region was approximately 8 eV,the electron density of the colliding-and-merging region was approaching 10^(20)m^(-3),and the ion temperature reached about 40 eV.

关键词： Stark effect Doppler effect ion temperature electron density electron temperature

Improved piezoelectric and luminescent properties in Sm-modified Bi_(0.5)na_(0.5)TiO_(3)-BaTiO_(3) multifunctional ceramics

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Journal of Materiomics 2024年第4期10卷 803-810页

作者： Shuai Cheng Kehong zhang Chongyang Li Boping zhang Jianguo Chen Kang Sun Changrong zhou Jingtai zhao Qisheng Lin Guanghui rao Siqi Shi School of Materials Science and Engineering Shanghai UniversityShanghai200444China Guangxi Key Laboratory of Information Materials&School of Materials Science and Engineering Guilin University of Electronic TechnologyGuilin541004GuangxiChina School of Materials Science and Engineering University of Science and Technology BeijingBeijing100083China School of Information Engineering Lanzhou University of Finance and EconomicsLanzhou730020China

The 0.93(na_(0.5)Bi_(0.5))_(1–x)Sm_(x)TiO_(3)-0.07BaTiO_(3) multifunctional ceramics were prepared by solid-phase reaction *** phase structure,microstructure,electrical and photoluminescent properties were systematically *** increasing x,the ceramics undergoes the phase transition from rhombohedral to tetragonal with some rhombohedral distortion,along with a reduced grain size and increased relative *** the other hand,the Sm3+doping enhances the electric-field driven reversible phase transition and domain size,and reduces the domain walls,thereby contributing to improved piezoelectricity and decreased depolarization temperature(T_(d))from 91℃ to 40℃.Excellent piezoelectric properties of d_(33)=213 pC/n and kp=29.9% are achieved in the x=0.010 *** excitation(407 nm),the Sm^(3+)-doped ceramic exhibits bright reddish-orange fluorescence at 564,599,646 nm and 710 nm.A polarization-induced enhancement of photoluminescence is obtained in BnBT-_(x)Sm ceramics with an improved relative intensity of emission band at 646 *** results indicate that Sm^(3+)-doped BnBT ceramics show great potential in electro-optic integration and coupling device applications.

关键词： Piezoelectricity Curie temperature Phase transitions Thermal stability Photoluminescence

High-Value-Added Utilization of Turpentine:Screening of Anti-Influenza Virus Agents fromβ-Pinene Derivatives

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Journal of Renewable Materials 2024年第1期12卷 45-56页

作者： Yiwen Li Hongyan Si Peng Wang Hai Luo Minggui Shen Xiaoping rao zhanqian Song Shibin Shang Zongde Wang Shengliang Liao East China Woody Fragrance and Flavor Engineering Research Center of national Forestry and Grassland Administration Camphor Engineering Research Center of National Forestry and Grassland AdministrationCollege of ForestryJiangxi Agricultural UniversityNanchang330045China Institute of Chemical Industry of Forestry Products China Academy of ForestryNational Engineering Laboratory for Biomass Chemical UtilizationKey and Open Laboratory of Forest Chemical EngineeringState Forestry AdministrationKey Laboratory of Biomass Energy and MaterialJiangsu ProvinceNanjing210042China College of Chemical Engineering Huaqiao UniversityXiamen361021China

Turpentine is a renewable and resourceful forest *** deep processing and utilization of turpentine,particularly its primary componentβ-pinene,has garnered widespread *** study aimed to synthesize 40 derivatives ofβ-pinene,including nopinone,3-cyanopyridines of nopinone,myrtanyl acid,myrtanyl acylthioureas,and myrtanyl *** assessed the antiviral activities of theseβ-pinene derivatives against influenza virus A/Puerto Rico/8/34(H1n1)using the 3-(4,5-dimetylthiazol-2-yl)-2,5-diphenyltetrazolium bromide ***β-pinene derivatives were used before and after cellular infection with the influenza virus to evaluate their preventive and therapeutic effects against the H1n1 *** results showed that only compound 10o exhibited a preventive effect against the H1n1 virus with a half-maximal inhibitory concentration(IC50)value of 47.6μmol/*** the compounds,4e,4i,and 4l demonstrated therapeutic effects against cellular infection,with compound 4e displaying the most potent therapeutic effect(IC50=17.5μmol/L),comparable to the positive control *** findings indicated that certainβ-pinene derivatives exhibited in vitro antiviral activity against the H1n1 influenza A virus,warranting further investigation as potential anti-influenza agents.

关键词： Antiviral activity β-pinene derivative 3-cyanopyridine influenza virus

Sequential neoadjuvant chemotherapy using pegylated liposomal doxorubicin and cyclophosphamide followed by taxanes with complete trastuzumab and pertuzumab treatment for HER2-positive breast cancer: A phase Ⅱ single-arm study

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Chinese Journal of Cancer Research 2024年第1期36卷 55-65页

作者： Yaping Yang Liang Jin Yudong Li nanyan rao Chang Gong Shunrong Li Jiannan Wu Jinghua zhao Linxiaoxiao Ding Fengxia Gan Jun zhang Ruifa Feng zh.nzh.n Liu Qiang Liu Breast Tumor Center Sun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationGuangzhou 510120China Department of Thyroid and Breast Surgery Shenzhen Qianhai Shekou Free Trade Zone HospitalShenzhen 518000China Breast and Thyroid Surgery Guilin Medical College Second Affiliated HospitalGuilin 541199China Department of Breast Disease Henan Breast Cancer Centerthe Affiliated Cancer Hospital of Zhengzhou University&Henan Cancer HospitalZhengzhou 450008China

Objective: Despite cardiotoxicity overlap, the trastuzumab/pertuzumab and anthracycline combination remains crucial due to significant benefits. Pegylated liposomal doxorubicin(PLD), a less cardiotoxic anthracycline, was evaluated for efficacy and cardiac safety when combined with cyclophosphamide and followed by taxanes with trastuzumab/pertuzumab in human epidermal growth factor receptor-2(HER2)-positive early breast cancer(BC).Methods: In this multicenter, phase II study, patients with confirmed HER2-positive early BC received four cycles of PLD(30-35 mg/m^(2)) and cyclophosphamide(600 mg/m^(2)), followed by four cycles of taxanes(docetaxel,90-100 mg/m^(2) or nab-paclitaxel, 260 mg/m^(2)), concomitant with eight cycles of trastuzumab(8 mg/kg loading dose,then 6 mg/kg) and pertuzumab(840 mg loading dose, then 420 mg) every 3 weeks. The primary endpoint was total pathological complete response(tp CR, yp T0/is yp n0). Secondary endpoints included breast p CR(bp CR),objective response rate(ORR), disease control rate, rate of breast-conserving surgery(BCS), and safety(with a focus on cardiotoxicity).Results: Between May 27, 2020 and May 11, 2022, 78 patients were treated with surgery, 42(53.8%) of whom had BCS. After neoadjuvant therapy, 47 [60.3%, 95% confidence interval(95% CI), 48.5%-71.2%] patients achieved tp CR, and 49(62.8%) achieved bp CR. ORRs were 76.9%(95% CI, 66.0%-85.7%) and 93.6%(95% CI,85.7%-97.9%) after 4-cycle and 8-cycle neoadjuvant therapy, respectively. nine(11.5%) patients experienced asymptomatic left ventricular ejection fraction(LVEF) reductions of ≥10% from baseline, all with a minimum value of >55%. no treatment-related abnormal cardiac function changes were observed in mean n-terminal pro-BnP(nT-pro BnP), troponin I, or high-sensitivity ***: This dual HER2-blockade with sequential polychemotherapy showed promising activity with rapid tumor regression in HER2-positive BC. Importantly, this regimen showed an acceptable safety

关键词： Breast cancer HER2-positive breast cancer dual HER2 blockade neoadjuvant therapy sequential therapy

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脂质立方液晶辅料植烷三醇的合成研究

中国药学杂志 2024年第12期59卷 1093-1099页

作者：饶信权张锐江西中医药大学现代中药制剂教育部重点实验室南昌330004

目的建立以植醇为原料,低浓度的过氧化氢为氧化剂,甲酸为载氧剂,在无催化剂的条件下,通过环氧化/开环反应合成植烷三醇的方法。方法采用单因素试验,考察甲酸、过氧化氢与植醇的摩尔比、反应温度和时间对植烷三醇收率的影响,并进行3批次... 详细信息

目的建立以植醇为原料,低浓度的过氧化氢为氧化剂,甲酸为载氧剂,在无催化剂的条件下,通过环氧化/开环反应合成植烷三醇的方法。方法采用单因素试验,考察甲酸、过氧化氢与植醇的摩尔比、反应温度和时间对植烷三醇收率的影响,并进行3批次重复性验证。用气-质联用仪、红外光谱仪以及核磁共振波谱仪对植烷三醇的色谱纯度和结构进行了分析。结果最佳工艺条件确定为:环氧化反应体系最佳条件为n(HCOOH)-n(H_(2)O_(2))n-n(植醇)=5∶1.3∶1,温度55℃,时间2 h;开环反应体系最佳条件为pH值13,温度105℃,时间0.5 h。经验证实验,该法植烷三醇合成工艺产率可达86.6%,色谱纯度为94.6%。结论所建立的合成方法工艺稳定,质量可控,并且所合成的植烷三醇纯度优于市售产品。

关键词：脂质立方液晶植烷三醇过氧化氢环氧化反应开环反应