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Catalyst–Support Interaction in Polyaniline‑Supported Ni_(3)Fe Oxide to Boost Oxygen Evolution Activities for Rechargeable Zn‑Air Batteries

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Nano-Micro Letters 2025年第1期17卷 176-190页

作者： Xiaohong Zou Qian Lu Mingcong Tang Jie wu Kouer Zhang Wenzhi Li Yunxia Hu Xiaomin Xu Xiao Zhang Zongping Shao liang An Department of Mechanical Engineering The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARPeople’s Republic of China Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment TechnologySchool of Environmental Science and TechnologyNanjing University of Information Science and TechnologyNanjing 210044People’s Republic of China Department of Chemistry The Chinese University of Hong KongMa Lin BuildingShatinHong Kong SAR 999077People’s Republic of China WA School of Mines:Minerals Energy and Chemical Engineering(WASM‑MECE)Curtin UniversityPerthWA 6102Australia Research Institute for Advanced Manufacturing The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARPeople’s Republic of China Research Institute for Smart Energy The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARPeople’s Republic of China

Catalyst–support interaction plays a crucial role in improving the catalytic activity of oxygen evolution reaction(OER).Here we modulate the catalyst–support interaction in polyaniline-supported Ni_(3)Fe oxide(Ni_(3)Fe oxide/PANI)with a robust hetero-interface,which significantly improves oxygen evolution activities with an overpotential of 270 mV at 10 mA cm^(-2)and specific activity of 2.08 mA cm_(ECSA)^(-2)at overpotential of 300 mV,3.84-fold that of Ni_(3)Fe *** is revealed that the catalyst–support interaction between Ni_(3)Fe oxide and PANI support enhances the Ni–O covalency via the interfacial Ni–N bond,thus promoting the charge and mass transfer on Ni_(3)Fe *** the excellent activity and stability,rechargeable Zn-air batteries with optimum Ni_(3)Fe oxide/PANI are assembled,delivering a low charge voltage of 1.95 V to cycle for 400 h at 10 mA cm^(-2).The regulation of the effect of catalyst–support interaction on catalytic activity provides new possibilities for the future design of highly efficient OER catalysts.

关键词： Catalyst-support interaction Supported catalysts Heterointerface Oxygen evolution reaction Zn-air batteries

Preparation of Co/S co-doped carbon catalysts for excellent methylene blue degradation

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 169-181页

作者： Haixu Li Haobo He Tiannan Jiang Yunfei Du Zhichen wu liang Xu Xinjie Wang Xiaoguang Liu Wanhua Yu Wendong Xue School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China Beijing Jinyu Tongda Refractory Technologies Co. Ltd.Beijing 100085China

S and Co co-doped carbon catalysts were prepared via pyrolysis of MOF-71 and thiourea mixtures at 800℃at a mass ratio of MOF-71 to thiourea of 1:0.1 to effectively activate peroxymonosulfate(PMS)for methylene blue(MB)*** effects of two different mixing routes were identified on the MB degradation ***,the catalyst obtained by the alcohol solvent evaporation(MOF-AEP)mixing route could degrade 95.60%MB(50 mg/L)within 4 min(degradation rate:K=0.78 min^(-1)),which was faster than that derived from the direct grinding method(MOF-DGP,80.97%,K=0.39 min^(-1)).X-ray photoelectron spectroscopy revealed that the Co-S content of MOF-AEP(43.39at%)was less than that of MOF-DGP(54.73at%),and the proportion of C-S-C in MOF-AEP(13.56at%)was higher than that of MOF-DGP(10.67at%).Density functional theory calculations revealed that the adsorption energy of Co for PMS was -2.94 eV when sulfur was doped as C-S-C on the carbon skeleton,which was higher than that when sulfur was doped next to cobalt in the form of Co-S bond(-2.86 eV).Thus,the C-S-C sites might provide more contributions to activate PMS compared with ***,the degradation parameters,including pH and MOF-AEP dosage,were ***,radical quenching experiments and electron paramagnetic resonance(EPR)measurements revealed that ^(1)O_(2)might be the primary catalytic species,whereas·O~(2-)might be the secondary one in degrading MB.

关键词： advanced oxidation process alcohol solvent evaporation hydrogen bond S and Co co-doped carbon catalysts wastewater remediation

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脊柱原发性骨肉瘤外科治疗临床观察

中华肿瘤防治杂志 2018年第8期25卷 550-554页

作者：王永强姜亮刘晓光庄洪卿韦峰于淼吴奉梁党礌周华刘忠军北京大学第三医院骨科北京100191 北京大学第三医院肿瘤放射科北京100191

目的脊柱原发性骨肉瘤的发病率低,约占脊柱原发肿瘤的3%~15%,占原发性骨肉瘤的3%~5%。本研究通过分析脊柱原发性骨肉瘤患者临床资料,探讨手术治疗脊柱原发性骨肉瘤的临床疗效。方法回顾性分析北京大学第三医院2012-01-01-2017-03-01手... 详细信息

目的脊柱原发性骨肉瘤的发病率低,约占脊柱原发肿瘤的3%~15%,占原发性骨肉瘤的3%~5%。本研究通过分析脊柱原发性骨肉瘤患者临床资料,探讨手术治疗脊柱原发性骨肉瘤的临床疗效。方法回顾性分析北京大学第三医院2012-01-01-2017-03-01手术治疗的11例脊柱原发性骨肉瘤患者临床资料。采用Kaplan-Meier法分析患者生存情况。结果 11例患者中男6例,女5例,接受手术治疗时年龄16~75岁,中位年龄48岁。入院时Frankel分级B级1例,C级3例,D级1例,E级6例;10例局部疼痛患者的VAS(Visual Analogue Scale)评分为(6.3±2.5)分。全脊椎切除术2例,刮除术9例。手术入路单纯后路6例,单纯前路1例,前后联合入路4例。手术时间90~668 min,平均(279±180)min;出血量100~4 000mL,平均(1 227±1 218)mL。接受辅助治疗11例,其中单纯行术后放疗6例,单纯化疗3例(术前采取新辅助化疗1例,单纯行术后化疗2例),同时行放疗和化疗2例。11例患者均获得随访,随访时间6~59个月,平均16.8个月,随访率100%,中位生存期为36个月,3年累积生存率为40.4%。3例死亡(死于肿瘤转移相关疾病),2例带瘤生存(局部进展及远处转移各1例),6例无瘤生存。术前存在脊髓损害5例,术后改善为D级1例,E级4例。末次随访仍生存的8例患者平均生存29.3个月,VAS评分均有改善,从术前的(6.4±3.0)分降低为(1.4±2.8)分,t=4.48,P<0.01。3例接受刮除术老年患者,术后单纯行局部调强放疗,目前均无瘤生存,平均生存39.7个月。结论脊柱原发性骨肉瘤预后差,肿瘤切除结合化疗、放疗可获得较好疗效。对于老年单发骨肉瘤患者,姑息手术结合局部调强放疗可获得满意疗效。

关键词：骨肉瘤脊柱肿瘤外科治疗

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提升PVC质量的回收VCM碱洗精馏工艺

聚氯乙烯 2016年第9期44卷 8-11,23页

作者：吴宝阳冯亮位倩倩新疆中泰化学阜康能源有限公司新疆昌吉831500

为提升PVC树脂质量,采取碱洗精馏工艺处理回收氯乙烯单体,先通过碱洗去除杂质,再通过精馏去除高沸物。处理后的回收氯乙烯单体纯度提升了0.53%,聚合引发剂和阻聚剂的用量相应降低,PVC树脂的白度和热稳定性均得到了明显提高。

关键词： PVC VCM 碱洗精馏质量热稳定性白度

Study of Back Contacts for CdTe Solar Cells

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Semiconductor Photonics and Technology 2003年第2期9卷 95-98页

作者： CAI Dao-lin, ZHENG Jia-gui, wu Li-li, feng liang-huan, ZHANG Jing-quan, CAI Ya-ping, CAI Wei, LI Wei, XIA Geng-pei, YAN Qiang(Dept.of Mat.Sci., Sichuan University, Chengdu 610064, CHN) Dept. of Mat. Sci. Sichuan University Chengdu 610064

ZnTe/ZnTe∶Cu layer is used as a complex back contact. The parameters of CdTe solar cells with and without the complex back contacts are compared. The effects of un-doped layer thickness, doped concentration and post-deposition annealing temperature of the complex layer on solar cells performance are *** results show that ZnTe/ZnTe∶Cu layer can improve back contacts and largely increase the conversion efficiency of CdTe solar cells. Un-doped layer and post-deposition annealing of high temperature can increase open voltage. Using the complex back contact, a small CdTe cell with fill factor of 73.14% and conversion efficiency of 12.93% is obtained.

关键词： complex back contacts CdTe solar cells conversion efficiency

Nanoparticles for the treatment of spinal cord injury

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Neural Regeneration Research 2025年第6期20卷 1665-1680页

作者： Qiwei Yang Di Lu Jiuping wu Fuming liang Huayi Wang Junjie Yang Ganggang Zhang Chen Wang Yanlian Yang Ling Zhu Xinzhi Sun Department of Orthopedic Surgery The First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan ProvinceChina CAS Key Laboratory of Standardization and Measurement for Nanotechnology CAS Key Laboratory for Biomedical Effects of Nanomaterials and NanosafetyCAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijingChina University of Chinese Academy of Sciences BeijingChina Department of Neurosurgery The First Affiliated Hospital of Chongqing Medical UniversityChongqingChina

Spinal cord injuries lead to significant loss of motor, sensory, and autonomic functions, presenting major challenges in neural regeneration. Achieving effective therapeutic concentrations at injury sites has been a slow process, partly due to the difficulty of delivering drugs effectively. Nanoparticles, with their targeted delivery capabilities, biocompatibility, and enhanced bioavailability over conventional drugs, are garnering attention for spinal cord injury treatment. This review explores the current mechanisms and shortcomings of existing treatments, highlighting the benefits and progress of nanoparticle-based approaches. We detail nanoparticle delivery methods for spinal cord injury, including local and intravenous injections, oral delivery, and biomaterial-assisted implantation, alongside strategies such as drug loading and surface modification. The discussion extends to how nanoparticles aid in reducing oxidative stress, dampening inflammation, fostering neural regeneration, and promoting angiogenesis. We summarize the use of various types of nanoparticles for treating spinal cord injuries, including metallic, polymeric, protein-based, inorganic non-metallic, and lipid nanoparticles. We also discuss the challenges faced, such as biosafety, effectiveness in humans, precise dosage control, standardization of production and characterization, immune responses, and targeted delivery in vivo. Additionally, we explore future directions, such as improving biosafety, standardizing manufacturing and characterization processes, and advancing human trials. Nanoparticles have shown considerable progress in targeted delivery and enhancing treatment efficacy for spinal cord injuries, presenting significant potential for clinical use and drug development.

关键词： antioxidants axon regeneration biocompatible materials drug carriers nanoparticles nerve regeneration neuroinflammatory diseases neuroprotection spinal cord injury stem cells

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柴达木枸杞中17种氨基酸的测定与分析

食品工业科技 2017年第1期38卷 281-286页

作者：吴有锋谭亮沈建伟冯海生李彩霞马世震中国科学院西北高原生物研究所中国科学院藏药研究重点实验室西宁810008 中国科学院大学北京100049

建立柱前衍生RP-HPLC法测定柴达木枸杞中17种氨基酸的含量,并分析不同产地、不同采摘期柴达木枸杞中氨基酸的含量。以2,4-二硝基氟苯为衍生试剂,色谱柱为Gemini-NX C18,流动相A:0.05 mol·L^(-1)的乙酸钠溶液(p H=6.4,含有1‰N,N-二甲... 详细信息

建立柱前衍生RP-HPLC法测定柴达木枸杞中17种氨基酸的含量,并分析不同产地、不同采摘期柴达木枸杞中氨基酸的含量。以2,4-二硝基氟苯为衍生试剂,色谱柱为Gemini-NX C18,流动相A:0.05 mol·L^(-1)的乙酸钠溶液(p H=6.4,含有1‰N,N-二甲基甲酰胺),流动相B:乙腈-水溶液(1∶1,v/v),采用梯度洗脱,检测波长360 nm。17种氨基酸的线性关系、精密度、稳定性、重复性良好,加样回收率为90.28%~102.85%(RSD为1.02%~4.76%);不同产地、不同采摘期的柴达木枸杞中氨基酸种类相同,但含量存在一定差异,产于德令哈的枸杞氨基酸平均含量最高,10月采摘的枸杞氨基酸总含量高于8月和9月,总量为6.217%~8.987%,必需氨基酸占总氨基酸比例为14.307%~19.572%,药用氨基酸占总氨基酸比例为63.632%~71.409%,增香氨基酸占总氨基酸比例为12.121%~17.356%。该方法简单、快捷,可测定柴达木枸杞中氨基酸的含量;不同产地、不同采摘期柴达木枸杞氨基酸含量的差异可能是由土壤环境、气象条件等因素所导致;在枸杞开发利用中可以根据不同的需求选择不同产地和采摘期的枸杞。

关键词：柴达木枸杞 RP—HPLC 柱前衍生药用氨基酸必需氨基酸

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基于全风网的矿井风温预测方法研究

煤炭工程 2017年第2期49卷 89-92页

作者：易欣吴奉亮王振平李珍宝郭英西安科技大学西部矿井开采及灾害防治教育部重点实验室陕西西安710054 兖矿集团有限公司山东邹城273500

为提高井下风温预测精度,基于风温与风量之间的耦合关系,研究了矿井全风网预测方法。针对多种热源、单一巷道风温预测模型进行分析,研究了风网中风量与风温的耦合关系及迭代解耦方法,并编制了相应的计算分析软件。通过现场数据基础参数... 详细信息

为提高井下风温预测精度,基于风温与风量之间的耦合关系,研究了矿井全风网预测方法。针对多种热源、单一巷道风温预测模型进行分析,研究了风网中风量与风温的耦合关系及迭代解耦方法,并编制了相应的计算分析软件。通过现场数据基础参数测定与模拟计算风温,与实测风温对比,数据吻合较好,结果表明该方法能够准确对矿井全风网下的风温、自然风压进行预测。

关键词：全风网风温矿井热害预测模型

Hypoxia-preconditioned bone marrow-derived mesenchymal stem cells protect neurons from cardiac arrest-induced pyroptosis

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Neural Regeneration Research 2025年第4期20卷 1103-1123页

作者： Xiahong Tang Nan Zheng Qingming Lin Yan You Zheng Gong Yangping Zhuang Jiali wu Yu Wang Hanlin Huang Jun Ke feng Chen Shengli Clinical Medical College of Fujian Medical University Fujian Medical UniversityFuzhouFujian ProvinceChina Department of Emergency Fujian Provincial HospitalFuzhouFujian ProvinceChina Fujian Provincial Key Laboratory of Emergency Medicine FuzhouFujian ProvinceChina The Second Department of Intensive Care Unit Fujian Provincial Hospital South BranchFuzhouFujian ProvinceChina

Cardiac arrest can lead to severe neurological impairment as a result of inflammation,mitochondrial dysfunction,and post-cardiopulmonary resuscitation neurological *** preconditioning has been shown to improve migration and survival of bone marrow–derived mesenchymal stem cells and reduce pyroptosis after cardiac arrest,but the specific mechanisms by which hypoxia-preconditioned bone marrow–derived mesenchymal stem cells protect against brain injury after cardiac arrest are *** this end,we established an in vitro co-culture model of bone marrow–derived mesenchymal stem cells and oxygen–glucose deprived primary neurons and found that hypoxic preconditioning enhanced the protective effect of bone marrow stromal stem cells against neuronal pyroptosis,possibly through inhibition of the MAPK and nuclear factor κB ***,we transplanted hypoxia-preconditioned bone marrow–derived mesenchymal stem cells into the lateral ventricle after the return of spontaneous circulation in an 8-minute cardiac arrest rat model induced by *** results showed that hypoxia-preconditioned bone marrow–derived mesenchymal stem cells significantly reduced cardiac arrest–induced neuronal pyroptosis,oxidative stress,and mitochondrial damage,whereas knockdown of the liver isoform of phosphofructokinase in bone marrow–derived mesenchymal stem cells inhibited these *** conclude,hypoxia-preconditioned bone marrow–derived mesenchymal stem cells offer a promising therapeutic approach for neuronal injury following cardiac arrest,and their beneficial effects are potentially associated with increased expression of the liver isoform of phosphofructokinase following hypoxic preconditioning.

关键词： bone marrow–derived mesenchymal stem cells cardiac arrest cardiac resuscitation hypoxic preconditioning liver isoform of phosphofructokinase mitochondria neuroinflammation oxidative stress pyroptosis reactive oxygen species