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One-pot pyrolysis synthesis of highly active Ru/RuOx nanoclusters for water splitting

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Nano Research 2022年第2期15卷 1020-1026页

作者： Fengyuan Zhu Jiangyan Xue Lingjian Zeng Jingrui Shang shuanglong lu Xueqin Cao Brendan F.Abrahams Hongwei Gu Jianping Lang College of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China School of Chemical and Material Engineering Jiangnan UniversityWuxi 214122China School of Chemistry University of MelbourneVictoria 3010Australia

Using simple methods to obtain efficient catalysts has been a long-standing goal for *** this work,the employment of a one-pot pyrolysis reaction to achieve molecular confinement,has led to the preparation of ruthenium(Ru)-based nanoclusters in a carbon matrix.A unique feature of the synthetic approach employed is that solvent and substrates were calcined *** solvent evaporates,during calcination,the substrates form a dense solid which has the effect of limiting the aggregation of Ru centers during the carbonization *** catalyst prepared in this simple manner showed an impressively high activity with respect to the hydrogen/oxygen evolution reaction(HER/OER).The Ru nanoclusters(Ru NCs),as the hydrogen evolution reaction(HER)catalysts,require ultralow overpotentials of 5 mV and 5.1 mV at-10 mA·cm^(-2) in 1.0 M KOH,and 0.5 M H_(2)SO_(4),***,the catalyst prepared by the one-pot method has higher crystallinity,a higher Ru content and an ultrafine cluster size,which contributes to its exceptional electrochemical ***,the RuO_(x) nanoclusters(RuO_(x) NCs),obtained by oxidizing the aforementioned Ru NCs,exhibited good oxygen evolution reaction(OER)performance with an overpotential of 266 mV at 10 mA·cm^(-2).When applied to overall water splitting,Ru/RuO_(x) nanoclusters as the cathode and anode catalysts can reach 10 mA·cm^(-2) at cell voltages of only 1.49 V in 1 M KOH.

关键词： pyrolysis ruthenium nanoclusters ruthenium dioxide nanoclusters hydrogen evolution reaction oxygen evolution reaction overall water splitting

Recent development of efficient electrocatalysts derived from porous organic polymers for oxygen reduction reaction

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Science China Chemistry 2017年第8期60卷 999-1006页

作者： shuanglong lu Yinghua Jin Hongwei Gu Wei Zhang Key Laboratory of Organic Synthesis of Jiangsu Province College of ChemistryChemical Engineering and Materials ScienceCollaborative Innovation Center of Suzhou Nano Science and TechnologySoochow UniversitySuzhou 215123China Department of Chemistry and Biochemistry University of ColoradoBoulderCO 80309 USA

Porous organic polymers(POPs) have recently emerged as promising candidates for catalyzing oxygen reduction reaction(ORR).Compared to conventional Pt-based ORR catalysts, these newly developed porous materials, including both non-precious metal based catalysts and metal-free catalysts, are more sustainable and cost-effective. Their porous structures and large surface areas facilitate mass and electron transport and boost the ORR kinetics. This mini-review will give a brief summary of recent development of POPs as electrocatalysts for the ORR. Some design principles, different POP structures, key factors for their ORR catalytic performance, and outlook of POP materials will be discussed.

关键词：氧还原反应多孔材料有机聚合物电催化剂 POPs 多孔结构铂基催化剂金属催化剂

In Situ Fabrication of Electrospun Carbon Nanofibers-Binary Metal Sulfides as Freestanding Electrode for Electrocatalytic Water Splitting

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Advanced Fiber Materials 2021年第2期3卷 117-127页

作者： Zhenfeng Zhu Jiace Hao Han Zhu Shuhui Sun Fang Duan shuanglong lu Mingliang Du Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122People’s Republic of China

In search of effective and stable bifunctional electrocatalyst for electrocatalytic water splitting is still a major challenge for the highly efficient H_(2) ***,we reported a facile strategy to design high-indexed Cu_(3)Pd_(13)_S_(7) nanoparticles(NPs)in situ synthesized on the three-dimensional(3D)carbon nanofibers(CNFs)by combining electrospinning and chemical vapor deposition(CVD)*** high-index facets with abundant active sites,the 3D architecture CNFs with high specific surface area and synergistic effect of Cu-Pd-S bonds with strong electron couplings together promote the elec-trocatalytic *** Cu_(3)Pd_(13)_S_(7)/CNFs shows excellent electrocatalytic activity with low overpotentials of 52 mV(10 mA cm^(−2))for hydrogen evolution reaction(HER)and 240 mV(10 mA cm^(−2))for oxygen evolution reaction(OER).The excellent protection of Cu_(3)Pd_(13)_S_(7) by CNFs from aggregation and electrolyte corrosion lead to the high stability of Cu_(3)Pd_(13)_S_(7)/CNFs under acidic and alkaline conditions.

关键词： Electrospinning Carbon nanofibers Binary metal sulfides Water splitting Materials science

Halide and NH3 Assisted Synthesis of Pt Nanodendrites with High Activity for Oxygen Reduction Reaction

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Halide and NH3 Assisted Synthesis of Pt Nanodendrites with H...

某联合循环机组汽轮发电机前轴承异常振动分析及处理

2015年第十四届全国应用化学年会

作者： lu shuanglong EID Kamel WANG Liang GU Hongwei College of Chemistry Chemical Engineering and Materials Science of Soochow University State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences

Platinum nanodendritic crystals have highly activity towards electrocatalysis due to their numbers of edges and corner atoms. In the article, we report a facile synthesis of several Pt nanodendrites by adding different halides under NH gas. We investigate the possible roles of halides in the synthesis and also NH, as far as we known, is firstly reported to assist the formation of platinum anisotropic nanostructures. By proposing the completing mechanism of NH with OAm, we believe that NH gas is crucial to the formation of dendritic morphology. The as-synthesized nanomaterials show superior catalytic activity for oxygen reduction reaction compared with commercial Pt/C catalyst and other Pt-based materials reported previously.

关键词： Pt nanodendrites shape control electrocatalysis ORR

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电机技术 2023年第3期 43-46页

作者：陈文卢双龙国网湖北省电力有限公司电力科学研究院 430077

对某汽轮发电机前轴承异常振动进行了详细分析,指出转子质量不平衡是导致机组异常振动的主要原因。现场对发电机转子护环实施反对称加重后,彻底解决了该发电机前轴承异常振动问题。

关键词：汽轮发电机振动故障诊断动平衡

免疫抑制治疗再生障碍性贫血疗效预测指标研究进展

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中华实用儿科临床杂志 2017年第3期32卷 235-237页

作者：卢双龙谢晓恬同济大学附属同济医院儿科上海200065

再生障碍性贫血（AA）是一类以骨髓造血功能衰竭和全血细胞减少为特征的严重血液病。目前对缺乏全相合同胞供者的AA患者，多采用抗胸腺细胞球蛋白（ATG）联合环孢素的免疫抑制治疗（IST），约1/3的患者IST无效，且IST存在一定临床风险... 详细信息

再生障碍性贫血（AA）是一类以骨髓造血功能衰竭和全血细胞减少为特征的严重血液病。目前对缺乏全相合同胞供者的AA患者，多采用抗胸腺细胞球蛋白（ATG）联合环孢素的免疫抑制治疗（IST），约1/3的患者IST无效，且IST存在一定临床风险，严重不良反应可致ATG治疗相关死亡。因此，有必要开展有关IST的疗效预测研究，为临床提供较为明确的疗效预测指标，使IST病例选择更为合理，从而进一步提高远期疗效。现就近年来国内外IST疗效预测的相关研究进行综述，以期为临床IST提供参考，并为后续相关研究提供依据。

关键词：再生障碍性贫血免疫抑制治疗预测指标

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某小型水轮发电机组振动问题分析及处理

人民长江 2012年第15期43卷 92-94,106页

作者：卢双龙吴峥峰彭天波湖北省电力公司电力科学研究院湖北武汉430077 华电电力科学研究院浙江杭州310030

某35MW水轮发电机组在调试期间出现了上机架振动超标、下导摆度偏大以及不稳定振动等现象。通过测试数据分析并结合现场观察,结果发现由于支撑系统的刚度不足、发电机转子的质量不平衡以及动静摩擦等原因,导致机组出现了异常振动。经放... 详细信息

某35MW水轮发电机组在调试期间出现了上机架振动超标、下导摆度偏大以及不稳定振动等现象。通过测试数据分析并结合现场观察,结果发现由于支撑系统的刚度不足、发电机转子的质量不平衡以及动静摩擦等原因,导致机组出现了异常振动。经放大下导油盆密封间隙和动平衡处理之后,成功地消除了该机组的振动故障。对机组振动故障所采取的措施及处理经验,可供相关问题诊断与处置提供借鉴。

关键词：机组振动故障诊断故障处理水轮发电机组

宽带吸收和高阻盐光热转换NiCoP@NF多级结构材料的制备与性能

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浙江理工大学学报（自然科学版） 2022年第5期47卷 705-713页

作者：黄豪朱罕陆双龙段芳杜明亮江南大学化学与材料工程学院江苏无锡214122 江南大学合成与生物胶体教育部重点实验室江苏无锡214122

为实现低成本且高效的海水淡化,通过水热反应和化学气相沉积在泡沫镍(NF)上构筑层次化结构,原位生长了海胆状磷化镍钴(SU-NiCoP)和纳米花状磷化镍钴(FL-NiCoP),制备了多级结构材料。利用场发射扫描电子显微镜(FE-SEM)、透射电子显微镜(T... 详细信息

为实现低成本且高效的海水淡化,通过水热反应和化学气相沉积在泡沫镍(NF)上构筑层次化结构,原位生长了海胆状磷化镍钴(SU-NiCoP)和纳米花状磷化镍钴(FL-NiCoP),制备了多级结构材料。利用场发射扫描电子显微镜(FE-SEM)、透射电子显微镜(TEM)、能谱分析(EDS)、X射线衍射仪(XRD)、X射线光电子能谱(XPS)、紫外-可见-近红外吸收光谱(UV-vis-NIR)和红外热成像(IR)等分析了该多级结构材料的微观形貌、晶体结构、表面化学状态和光热转换性能。结果表明:多级结构材料具有多孔结构和粗糙表面,使入射太阳光在其内部产生多次散射,并在空气/水界面将其转化为热量;在一个太阳光照强度下(1000W/m^(2)),多级结构材料的全光谱吸收率最高可达98.0%、蒸发速率最高达到1.51kg/(m^(2)·h),太阳光-蒸汽转换效率分别达到了81.7%和96.1%;疏水处理进一步提高了该太阳能光热转换蒸发器的高阻盐性,可以在高质量分数(质量分数10%)的NaCl溶液中长时间保持蒸发性能,赋予该材料优异的循环稳定性和高阻盐性。

关键词：过渡金属磷化物纳米结构海水淡化光热转换疏水性光吸收

人工血管-无名动脉灌注治疗复杂重症缺血性心肌病1例

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中华胸心血管外科杂志 2024年第4期40卷 232-233页

作者：蒋侠徐勇卢辉俊胡双龙李明秋荣晓松南京医科大学附属无锡人民医院心脏外科无锡214000 南京医科大学附属无锡人民医院血管外科无锡214000

64岁男性患者,患缺血性心肌病合并二尖瓣中重度反流,腹主动脉下端及双侧髂总动脉闭塞。手术治疗分2期进行,Ⅰ期行主-髂动脉支架置入术;Ⅱ期行冠状动脉旁路移植术+二尖瓣成形术。Ⅱ期手术在Ⅰ期出院后2个月进行,术中因升主动脉钙化严重,... 详细信息

64岁男性患者,患缺血性心肌病合并二尖瓣中重度反流,腹主动脉下端及双侧髂总动脉闭塞。手术治疗分2期进行,Ⅰ期行主-髂动脉支架置入术;Ⅱ期行冠状动脉旁路移植术+二尖瓣成形术。Ⅱ期手术在Ⅰ期出院后2个月进行,术中因升主动脉钙化严重,且支架原因无法完成股动脉插管,选择人工血管-无名动脉作为插管灌注入路。患者术后恢复良好,15天后顺利出院。至今随访2年余,无胸闷、气急及间歇性跛行等症状;下肢血管CTA检查示腹主动脉及双侧髂动脉血管通畅;超声心动图示二尖瓣轻微反流,左心室射血分数0.45。

关键词：缺血性心肌病股动脉插管二尖瓣成形术间歇性跛行左心室射血分数人工血管支架置入术无名动脉