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Highly efficient and active Co-N-C catalysts for oxygen reduction and Zn-air batteries

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Frontiers in Energy 2024年第4期18卷 436-446页

作者： Cong LEI Rongzhong YANG Jianan ZHAO Wenbin TANG Fadong MIAO qinghong huang Yuping WU School of Energy Science and Engineering Nanjing Tech UniversityNanjing 211816China

In this study,the Lewis doping approach of polyaniline(PANI)was employed to fabricate cobait-nitrogen-carbon(Co-N-C)oxygen electrocatalysts for Zn-air batteries,aiming to enhance the active spots of *** resulting Co-N-C catalysts exhibited welldefined nanofiber networks,and the Brunauer-EmmettTeller(BET)analysis confirmed their substantial specific surface *** experiments demonstrated that the Co-N-C catalysts achieved the half-wave potential(***)of 0.85 V in alkaline medium,overcoming Pt/C and iron-nitrogen-carbon(Fe-N-C)counterparts in extended cycle testing with only a 25 mV change in a half-wave potential after 5000 ***,the highest power density measured in the zinc(Zn)-air battery reached 227 mW/cm^(2),a significant improvement over the performance of 101 mW/cm^(2) of the platinum on activated carbon(Pt/C)*** findings highlight the advantageous stability enhancement associated with the utilization of Co in the Co-N-C catalysts.

关键词： oxygen reduction reaction(ORR) oxygen evolution reaction(OER) non-noble metal catalysts Co-N-C catalysts Zn-air battery

Efficient oxygen electrocatalysts with highly-exposed Co-N4 active sites on N-doped graphene-like hierarchically porous carbon nanosheets enhancing the performance of rechargeable Zn-air batteries

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Nano Research 2022年第8期15卷 7209-7219页

作者： Nengfei Yu Hui Chen Jingbiao Kuang Kailin Bao Wei Yan Jilei Ye Zhongtang Yang qinghong huang Yuping Wu Shigang Sun School of Energy Sciences and Engineering Nanjing Tech UniversityNanjing 211816China State Key Laboratory of Physical Chemistry of Solid Surfaces Department of ChemistryCollege of Chemistry and Chemical EngineeringCollaborative innovation center of Chemistry for Energy MaterialsXiamen UniversityXiamen 361005China

Designing bifunctional oxygen electrocatalysts with high activity,lasting stability,and low-cost for rechargeable zinc-air batteries(RZABs)is a tough ***,an advanced electrocatalyst is prepared by anchoring atomically dispersed Co atoms on Ndoped graphene-like hierarchically porous carbon nanosheets(SA-Co-N4-GCs)and thereby forming Co-N4-C *** unique structure with excellent conductivity,large surface area,and three dimensional(3D)interconnected hierarchically porous architecture exposes not only more Co-N4 active sites to accelerate the kinetics of both oxygen reduction reaction(ORR)and oxygen evolution reaction(OER),but also provides an efficient charge/mass transport environment to reduce diffusion ***,SA-Co-N4-GCs exhibits excellent ORR/OER bifunctional activities and durability,surpassing noble-metal *** RZABs using SA-Co-N4-GCs cathodes display a high open-circuit voltage of 1.51 V,a remarkable power density of 149.3 mW·cm−2,as well as excellent stability and rechargeability with faint increase in polarization even at a large depth of charge–discharge cycle with 16 h per cycle over an entire 600 h long-term ***,flexible quasi-solid-state RZABs with SA-Co-N4-GCs cathodes also deliver a considerable power density of 124.5 mW·cm−2,which is even higher than that of liquid batteries using noble-metal *** work has thrown new insight into development of high-performance and low-cost electrocatalysts for energy conversion and storage.

关键词： bifunctional electrocatalysts Co-N4 active sites oxygen reduction reaction oxygen evolution reaction rechargeable Zn-air batteries

Latest Advances in High-Voltage and High-Energy-Density Aqueous Rechargeable Batteries

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Electrochemical Energy Reviews 2021年第1期4卷 1-34页

作者： Xinhai Yuan Fuxiang Ma Linqing Zuo Jing Wang Nengfei Yu Yuhui Chen Yusong Zhu qinghong huang Rudolf Holze Yuping Wu Teunis van Ree Institute of Advanced Materials(IAM) School of Energy Science and EngineeringChina State Key Laboratory of Materials-Oriented Chemical EngineeringNanjing Tech UniversityNanjing 210009JiangsuChina Institute of Chemistry Saint Petersburg State UniversitySt.Petersburg 199034Russia Institute of Chemistry Chemnitz University of TechnologyAG ElektrochemieChemnitzGermany Department of Chemistry University of VendaThohoyandou 0950South Africa

Aqueous rechargeable batteries(ARBs)have become a lively research theme due to their advantages of low cost,safety,environmental friendliness,and easy ***,since its inception,the aqueous solution energy storage sys-tem has always faced some problems,which hinders its development,such as the narrow electrochemical stability window of water,poor percolation of electrode materials,and low energy *** recent years,to overcome the shortcomings of the aqueous solution-based energy storage system,some very pioneering work has been done,which also provides a great inspiration for further research and development of future high-performance aqueous energy storage *** this paper,the latest advances in various ARBs with high voltage and high energy density are *** include aqueous rechargeable lithium,sodium,potassium,ammonium,zinc,magnesium,calcium,and aluminum *** chal-lenges are pointed out.

关键词： Aqueous rechargeable batteries Aqueous electrolyte High voltage High energy density

Co-expression of calretinin and parvalbumin in the rat facial nucleus

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Neural Regeneration Research 2008年第9期3卷 991-994页

作者： Qiben Wang Linfeng Zheng qinghong huang Yanbin Meng Manyuan Kuang Department of Human Anatomy Xiangnan College Chenzhou 423000 Hunan Province China Department of Neurobiology and Anatomy Central South University Changsha 410013 Hunan Province China

BACKGROUND： Calretinin and parvalbumin are members of the intracellular calcium binding protein family, which transform Ca^2＋ bioinformation into regulation of neuronal and neural network activities. OBJECTIVE： To observe expression and co-expression of calretinin and parvalbumin in rat facial nucleus neurons . DESIGN, TIME AND SETTING： Neuronal morphology experiment was performed at the Research Laboratory of Applied Anatomy, Department Neurobiology and Anatomy, Xiangya Medical College of Central South University from August to October 2007. MATERIALS： Five healthy, adult Sprague Dawley rats were selected. Polyclonal rabbit-anti-parvalbumin and mouse-anti-calretinin were provided by Sigma, USA. METHODS： Rat brains were obtained and cut into coronal slices using a freezing microtome. Slices from the experimental group were immunofluorescent stained with polyclonal rabbit-anti-parvalbumin and mouse-anti-calretinin antibodies. The control group sections were stained with normal rabbit and mouse sera. MAIN OUTCOME MEASURES： Immunofluorescent double-staining was used to detect calretinin and parvalbumin expression. Nissl staining was utilized for facial nucleus localization and neuronal morphology analysis. RESULTS： The majority of facial motor neurons was polygon-shaped, and expressed calretinin and parvalbumin. The calretinin-immunopositive neurons also exhibited parvalbumin immunoreactivity, that is, calretinin and parvalbumin were co-expressed in the same neuron. CONCLUSION： Calretinin and parvalbumin were expressed in facial nucleus neurons, with varied distribution.

关键词： calretinin facial nucleus parvalbumin rats

Spatiotemporal expression of inducible nitric oxide synthase and cyclooxygenase 2 in the spinal cord during early stage sciatic nerve crush injury

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Neural Regeneration Research 2010年第10期5卷 747-751页

作者： Qiben Wang Linfeng Zheng Yinggui Xie qinghong huang He huang Zhicheng Zeng Song Wu Department of Human Anatomy XiangNan University Chenzhou 423000 Hunan Province China Department of Radiology Shanghai First People's Hospital Medical College Shanghai Jiaotong University Shanghai 200080 China Department of Orthopaedics Third Xiangya Hospital Central South University Changsha 410013 Hunan Province China Department of Human Anatomy and Neurobiology Xiangya School of Medicine Central South University Changsha 410013 Hunan Province China

BACKGROUND： Previous studies have shown that inducible nitric oxide synthase （iNOS） and cyclooxygenase 2 （COX-2） participate in inflammatory immune responses and neuropathic pain following peripheral nerve injury. However, few reports have addressed time-dependent expression of iNOS and COX-2 following peripheral nerve injury. OBJECTIVE： To investigate spatiotemporal expression of iNOS and COX-2 during early stage sciatic nerve crush ***, TIME AND SETTING： The randomized, controlled, animal experiment was performed at the Laboratory of Applied Anatomy, Department of Human Anatomy and Neurobiology, Central South University, China from September 2006 to September ***： Mouse anti-rat iNOS monoclonal antibody and goat anti-rat COX-2 monoclonal antibody （Transduction Laboratory, USA）, as well as biotinylated rabbit anti-mouse lgG and biotinylated rabbit anti-goat IgG （Santa Cruz Biotechnology, USA） were used in the present ***： A total of 48 healthy, adult, Sprague Dawley rats were randomly assigned to three groups. In the model group （n = 32）, crush injury to the right sciatic nerve was established using an artery clamp. The model group was further assigned to four subgroups according to survival time （6,12, 24, and 72 hours）, respectively （n = 8）. Sham surgery （n = 8） and normal control （n = 8） groups were also *** OUTCOME MEASURES： iNOS and COX-2 expression was detected in the L4-6 spinal cord with immunohistochemistry. Gray values of iNOS- and COX-2-postive cells in the anterior horn and posterior horn of spinal cord, as well as quantification of iNOS- and COX-2-positive cells in the anterior horn of spinal cord, were ***： iNOS and COX-2 expression gradually increased in the anterior horn and posterior horn of the spinal cord on the damaged side over time from 6 hours following sciatic nerve injury （P〈0.05） and peaked at 72 hours. Simultaneously, the number of iNOS- and COX-2-positive cells similarly increased

关键词： inducible nitric oxide synthase cyclooxygenase 2 sciatic nerve spinal cord peripheral nerve injury neural regeneration

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罗登贤对党领导东北抗战的历史贡献

长白学刊 2019年第3期 141-145页

作者：黄庆红吉林大学吉林长春130012

1931年夏,罗登贤受党中央派遣任中共中央驻东北代表,开启了他在东北披荆斩棘的革命生涯。至1932年12月奉调离开东北,一年半时间里先后经历"九一八"事变、中共满洲省委遭到破坏、日本全面侵略东北诸多危局,他以勇于担当的革命品格和总揽... 详细信息

1931年夏,罗登贤受党中央派遣任中共中央驻东北代表,开启了他在东北披荆斩棘的革命生涯。至1932年12月奉调离开东北,一年半时间里先后经历"九一八"事变、中共满洲省委遭到破坏、日本全面侵略东北诸多危局,他以勇于担当的革命品格和总揽全局的开阔视野重建中共满洲省委,领导东北人民坚持抗战。

关键词：中共满洲省委抗日危局担当

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超支化压裂液稠化剂的制备及评价

精细化工 2022年第12期39卷 2569-2576,2584页

作者：马喜平周照波黄莉母严冬黄清洪西南石油大学化学化工学院油气田应用化学四川省重点实验室油田化学教育部工程研究中心四川成都610500

以二乙醇胺(DEA)、丙烯酸甲酯(MA)、1,1,1-三羟甲基丙烷(TMP)、顺丁烯二酸酐(MAH)为原料,合成了一种端羧基超支化大单体HPAE-C。并以HPAE-C、丙烯酰胺(AM)、丙烯酸(AA)以及2-丙烯酰胺基-2-甲基丙磺酸(AMPS)为单体,在水溶液中进行自由基... 详细信息

以二乙醇胺(DEA)、丙烯酸甲酯(MA)、1,1,1-三羟甲基丙烷(TMP)、顺丁烯二酸酐(MAH)为原料,合成了一种端羧基超支化大单体HPAE-C。并以HPAE-C、丙烯酰胺(AM)、丙烯酸(AA)以及2-丙烯酰胺基-2-甲基丙磺酸(AMPS)为单体,在水溶液中进行自由基聚合得到一种四元共聚物稠化剂PHPAE-C。通过FTIR和^(1)HNMR对其结构进行表征。评价了超支化稠化剂的溶液性质和交联性能。结果表明,稠化剂质量浓度为3000 mg/L(剪切速率为7.34 s^(–1),25℃)时,溶液表观黏度可达846.7 m Pa·s,升温至90℃时,表观黏度仍为570 m Pa·s,并且在Na^(+)质量浓度为6000 mg/L、Ca^(2+)和Mg^(2+)质量浓度为600 mg/L时,表观黏度仍能达到300 m Pa·s以上,说明PHPAE-C具有良好的增黏、耐温、耐盐和抗剪切性能;在m(聚合物水溶液,聚合物质量分数为0.3%)∶m(乙酰丙酮锆)=100∶0.06、交联温度为55℃、pH=5时,交联效果最佳。在120℃、剪切速率170 s^(–1)下剪切80 min后,该体系的表观黏度可达到450 m Pa·s左右,并且是一种具有良好悬砂、破胶性能的低伤害压裂液体系。

关键词：超支化共聚物稠化剂交联压裂液性能评价油田化学品

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近代上海制冷旧事

都会遗踪 2018年第2期 18-27页

作者：黄庆鸿不详

随着近代中国冰鲜鱼、冰蛋品、冰肉禽、冰冷饮等冷藏食品需求增长,逐渐形成了制冷制冰业。其实制冷制冰业起始于天然冰,嗣后人造冰起而代之,冷冻冷藏等产业始才逐步发展起来。而上海的制冷制冰业在全国一直有着重要地位。从上海民国时... 详细信息

随着近代中国冰鲜鱼、冰蛋品、冰肉禽、冰冷饮等冷藏食品需求增长,逐渐形成了制冷制冰业。其实制冷制冰业起始于天然冰,嗣后人造冰起而代之,冷冻冷藏等产业始才逐步发展起来。而上海的制冷制冰业在全国一直有着重要地位。从上海民国时期制冷产业的发展,可以看出'冰块'改变的社会生活。

关键词：天然冰冷冻冷藏

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严肃党内政治生活的政党文化建设路径探析

长白学刊 2022年第3期 1-7页

作者：林志彬黄庆红广州中医药大学马克思主义学院广东广州510006 吉林大学国际仿生工程学会秘书处吉林长春130000

营造党内健康政治生活,厚植先进政党文化不容忽视。政党文化是政党的魂灵,是党员的精神家园。先进的政党文化在塑造政党及其成员行为等方面承载着“以文化成”等重要功能,能够为营造党内健康政治生活提供强大的精神动力和价值支撑。借... 详细信息

营造党内健康政治生活,厚植先进政党文化不容忽视。政党文化是政党的魂灵,是党员的精神家园。先进的政党文化在塑造政党及其成员行为等方面承载着“以文化成”等重要功能,能够为营造党内健康政治生活提供强大的精神动力和价值支撑。借助政党文化的功能解决党内政治生活中存在的问题,是推进党内政治生活健康发展的一条重要路径。当前党内政治生活中存在的突出问题,如决策独断专行、制度执行不力以及同志关系扭曲等,与不良政治文化的侵蚀有直接关系。特别是官僚主义、人治思想和“圈子文化”这三种不良政治文化对党内政治生活健康发展破坏甚大。抵制官僚主义、人治思想和“圈子文化”,营造健康的党内政治生活,培育党内民主精神、法治理念和平等观念是中国共产党政党文化建设的关键抉择。

关键词：中国共产党政治生活政党文化