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Internal Polarization Field Induced Hydroxyl Spillover Effect for Industrial Water Splitting Electrolyzers

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Nano-Micro Letters 2024年第2期16卷 438-449页

作者： Jingyi Xie fuli wang Yanan Zhou Yiwen Dong Yongming Chai Bin Dong State Key Laboratory of Heavy Oil Processing College of Chemistry and Chemical EngineeringChina University of Petroleum(East China)Qingdao 266580People’s Republic of China

The formation of multiple oxygen intermediates supporting efficient oxygen evolution reaction(OER)are affinitive with hydroxyl ***,ability of the catalyst to capture hydroxyl and maintain the continuous supply at active sits remains a tremendous ***,an affordable Ni2P/FeP2 heterostructure is presented to form the internal polarization field(IPF),arising hydroxyl spillover(HOSo)during *** by IPF,the oriented HOSo from FeP2 to Ni2P can activate the Ni site with a new hydroxyl transmission channel and build the optimized reaction path of oxygen intermediates for lower adsorption energy,boosting the OER activity(242 mV *** at 100 mA cm-2)for least 100 *** interestingly,for the anion exchange membrane water electrolyzer(AEMWE)with low concentration electrolyte,the advantage of HOSo effect is significantly amplified,delivering 1 A cm^(-2)at a low cell voltage of 1.88 V with excellent stability for over 50 h.

关键词： Hydroxyl spillover effect Internal polarization field Heterostructure Oxygen reduction reaction Anion exchange membrane water electrolysis

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《诗经·魏风》“硕鼠”释义新考

中州学刊 2024年第5期 157-162页

作者：王福利苏州大学文学院江苏苏州215123

随着“安大简”的发现与整理,人们对《诗经·魏风》中的“硕鼠”有了新的认识。“硕鼠”在“安大简”简文中书作“石鼠”,这为我们准确理解常见版本中的“硕鼠”提供了更为客观的新视角。《诗经·魏风》中的“硕鼠”“石鼠”实际上即“... 详细信息

随着“安大简”的发现与整理,人们对《诗经·魏风》中的“硕鼠”有了新的认识。“硕鼠”在“安大简”简文中书作“石鼠”,这为我们准确理解常见版本中的“硕鼠”提供了更为客观的新视角。《诗经·魏风》中的“硕鼠”“石鼠”实际上即“鼫鼠”“大鼠”“鼯鼠”“雀鼠”“飞生”等,这是一种形体较大,双翼如蝙蝠,毛色多种,既能穴处,又能入“树空中”的大飞鼠。它不仅食人禾苗,而且食粟、豆,史书中亦有“雀鼠耗”之典故。它实际上属于兽类,既不是人们一般所认为的大老鼠,更不是昆虫类中名为“硕鼠”的蝼蛄。学界对《诗经·魏风》中的“硕鼠”诠释上出现的分歧,多由不辨其名同物异所致。

关键词：《诗经·魏风》硕鼠石鼠大鼠蝼蛄

李商隐《春雨》悼亡意旨发覆——兼论李商隐悼亡诗的新变意义

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安徽大学学报（哲社版） 2024年第4期48卷 60-68页

作者：柴天骐王福利苏州大学文学院江苏苏州215000

《春雨》为李商隐七律的代表作,其诗义却长久以来众说纷纭。然而,如将该诗重置于作者及其同时代人的诗歌语境中,并对细节详加考证,其悼亡意旨便得以凸显。李商隐集中包括《春雨》在内的多首诗作通过私典“玉珰缄札”构成了一个意义共生... 详细信息

《春雨》为李商隐七律的代表作,其诗义却长久以来众说纷纭。然而,如将该诗重置于作者及其同时代人的诗歌语境中,并对细节详加考证,其悼亡意旨便得以凸显。李商隐集中包括《春雨》在内的多首诗作通过私典“玉珰缄札”构成了一个意义共生的互文系统,其中暗含着一个悼亡本事。“白袷”一词在诗中具有多义性,既有与男女情爱本事相贴合的内涵,又因其丧礼服制渊源寄寓了诗人的悼亡与自悼之意,首联“白”字的重出问题也从而获得合理的解释。温庭筠《和友人悼亡》一诗无论是从“和韵”与“和意”的层面,还是从诗题的异文来看,都可论证为《春雨》的和诗。《春雨》诗义的隐没所昭示出的李商隐悼亡诗消弭生死的独特手法,是对悼亡诗写作传统的颠覆与突破。该手法源于李商隐以“情”为核心对游仙传统及“人神相恋”模式所进行的移植与改造,体现了尚缘情的晚唐时代风气与后世思潮的前后承接关系,具有深远的文学史意义。

关键词：李商隐《春雨》悼亡诗私典唱和诗

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低温熔盐辅助铈掺杂钴基氢氧化物用于工业级电催化析氧反应

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燃料化学学报（中英文） 2024年第9期52卷 1299-1306页

作者：王福利吕千喜董宜文谢静宜王志才董斌柴永明中国石油大学(华东)化学化工学院山东青岛266580 甘肃烟草工业有限公司技术研发中心甘肃兰州730050

开发低成本、高性能的析氧电催化剂提升电化学水分解的效率,对于氢能的大规模利用具有重要的意义。钴基氢氧化物是一类极具潜力的析氧(OER)电催化剂,但是较差的导电性与催化活性严重制约了其应用推广。本研究采用一步低温熔盐法合成了... 详细信息

开发低成本、高性能的析氧电催化剂提升电化学水分解的效率,对于氢能的大规模利用具有重要的意义。钴基氢氧化物是一类极具潜力的析氧(OER)电催化剂,但是较差的导电性与催化活性严重制约了其应用推广。本研究采用一步低温熔盐法合成了铈掺杂的硝酸氢氧化钴电催化剂(Ce-CoNH/CF)。该催化剂在1 mol/L KOH电解液中具有最低的过电位(448 mV@1000 mA/cm^(2))。塔菲尔(Tafel)斜率、循环伏安(CV)和电化学阻抗谱(EIS)测试表明,快速的反应动力学、高效的电化学活性比表面积(ECSA)和极低的电荷转移电阻(Rct)共同作用使得催化剂具有优异的性能。并且在实验室条件下的模拟工业化测试也表明,Ce-CoNH/CF在工业级高温、高浓度的电解液(6 mol/L KOH,70℃)中同样展现出了出色的析氧性能。

关键词：熔融盐析氧反应电催化碱性掺杂

维普期刊数据库博看期刊

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改进模糊滑模的永磁同步电机控制

黑龙江科技大学学报 2024年第1期34卷 145-150页

作者：赵杰王富利张瑞黑龙江科技大学电气与控制工程学院哈尔滨150022

为提高矿用牵引PMSM性能,分析传统PMSM控制中指数趋近律的优缺点,结合PMSM运行时的状态量,设计了一种自适应的指数趋近律,构建改进滑模控制器,利用模糊算法进一步优化改进滑模控制器,给出改进模糊滑模控制器。结果表明:空载时,改进模糊... 详细信息

为提高矿用牵引PMSM性能,分析传统PMSM控制中指数趋近律的优缺点,结合PMSM运行时的状态量,设计了一种自适应的指数趋近律,构建改进滑模控制器,利用模糊算法进一步优化改进滑模控制器,给出改进模糊滑模控制器。结果表明:空载时,改进模糊滑模控制器和改进滑模控制器均可实现无超调启动,改进滑模控制器到达参考转速的时间比滑模控制器提高0.12 s,改进模糊滑模控制器到达参考转速的时间比改进滑模控制器提高0.01 s;突加负载时,改进滑模控制器比滑模控制器最大误差减小0.17%,改进模糊滑模控制器比改进滑模控制器最大误差减小2.53%。证明了改进模糊滑模控制器可有效提高系统控制精度,改善了系统动态性能。

关键词：永磁同步电机模糊控制滑模控制器改进指数趋近律

A model for parameter estimation of multistage centrifugal compressor and compressor performance analysis using genetic algorithm

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Science China(Technological Sciences) 2012年第11期55卷 3163-3175页

作者： CHU Fei wang fuli wang XiaoGang ZHANG ShuNing College of in formation Science and Engineering Northeastern UniversityShenyang 110819China State Key Laboratory of Integrated Automation for Process Industries Northeastern UniversityShenyang 110819China

A model for performance prediction of multistage centrifugal compressor is proposed. The model allows the users to predict the compressor performance, e.g. pressure ratio, efficiency and losses using the compressor geometric information and speed by a stage stacking calculation based on the characteristics of each stage. To develop the compressor elemental stage charac- teristics, the compressor losses, such as incidence losses and friction losses, are mathematically modeled. For a composite sys- tems, for instance a gas turbine power plant, the performance of the multistage centrifugal compressor can be evaluated. Since some important parameters of the compressor model, e.g., the slip factor or, shock loss coefficient （and reference diameter DI, are hard to be determined by empirical laws, a genetic algorithm （GA） is used to solve the parameter estimation problem of the proposed model, and in turn the compressor performance analysis and parameters study are performed. The surge line for the multistage centrifugal compressor can also be determined from the simulation results. Furthermore, the model presented here provides a valuable tool for evaluating the multistage centrifugal compressor performance as a function of various operation parameters.

关键词： performance predication centrifugal compressor incidence loss genetic algorithm surge line

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古树强度缺陷与破坏机制研究

安徽林业科技 2024年第1期50卷 9-14,23页

作者：邵卓平王福利安徽农业大学安徽合肥230036

古树在经历过数百年后会存在不同程度的安全隐患,构成这些安全隐患的缺陷称之为强度缺陷,它们降低了古树抵抗风雪荷载的能力。本文将古树的强度缺陷归结为三种类型:腐朽空洞、结构缺陷、枯伤裂纹,并从树木力学的角度分析了强度缺陷如何... 详细信息

古树在经历过数百年后会存在不同程度的安全隐患,构成这些安全隐患的缺陷称之为强度缺陷,它们降低了古树抵抗风雪荷载的能力。本文将古树的强度缺陷归结为三种类型:腐朽空洞、结构缺陷、枯伤裂纹,并从树木力学的角度分析了强度缺陷如何影响古树的强度和稳定性,阐述了古树的破坏方式及其力学机制,以期为古树保护与修复提供借鉴和参考。

关键词：古树强度缺陷破坏方式力学机制

Improved fast model migration method for centrifugal compressor based on bayesian algorithm and Gaussian process model

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Science China(Technological Sciences) 2018年第12期61卷 1950-1958页

作者： CHU Fei DAI BangWu LU NanNan MA XiaoPing wang fuli School of Information and Control Engineering China University of Mining and Technology State Key Laboratory of Integrated Automation for Process Industries Northeastern University

Design and operation optimization of centrifugal compressor are always based on an accurate prediction model, however, due to the short time operation and lack of data information, it is difficult to get an accurate prediction model of a new centrifugal compressor in time. This paper applies an improved fast model migration method(FMM method) to develop the model of the new centrifugal compressor. The method adapts a Gaussian Process(GP) model from an old centrifugal compressor to fit a new and similar centrifugal compressor, and the adaptation is conducted by a scale-bias adjustment migration technology. In order to obtain the better estimated parameters of migration, Bayesian method, which takes the prior knowledge into consideration, is used in the sequential experiment. The approach is validated by a specific simulation bench. The results indicate that the applied approach can achieve a better prediction precision with fewer data of the new centrifugal compressor compared to pure GP method, and can model the new centrifugal compressor rapidly.

关键词： Bayesian centrifugal compressor Gaussian process model model migration performance prediction

Online complex nonlinear industrial process operating optimality assessment using modified robust total kernel partial M-regression

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Chinese Journal of Chemical Engineering 2018年第4期26卷 775-785页

作者： Fei Chu Wei Dai Jian Shen Xiaoping Ma fuli wang School of Information and Control Engineering China University of Mining and Technology Xuzhou 221116 China State Key Laboratory of Integrated Automation for Process Industries Northeastern University Shenyang 110819 China College of Information Science and Engineering Northeastern University Shenyang 110819 China

Although industrial processes often perform perfectly under design conditions, they may deviate from the optimal operating point owing to parameters drift, environmental disturbances, etc. Thus, it is necessary to develop efficacious strategies or procedure to assess the process performance online. In this paper, we explore the issue of operating optimality assessment for complex industrial processes based on performance-similarity considering nonlinearities and outliers simultaneously, and a general enforced online performance assessment framework is proposed. In the offline part, a new and modified total robust kernel projection to latent structures algorithm,T-KPRM, is proposed and used to evaluate the complex nonlinear industrial process, which can effectively extract the optimal-index-related process variation information from process data and establish assessment models for each performance grades overcoming the effects of outlier. In the online part, the online assessment results can be obtained by calculating the similarity between the online data from a sliding window and each of the performance grades. Furthermore, in order to improve the accuracy of online assessment, we propose an online assessment strategy taking account of the effects of noise and process uncertainties. The Euclidean distance between the sliding data window and the optimal evaluation level is employed to measure the contribution rates of variables, which indicate the possible reason for the non-optimal operating performance. The proposed framework is tested on a real industrial case: dense medium coal preparation process, and the results shows the efficiency of the proposed method comparing to the existing method.

关键词： Performance assessment Optimization Model Economics T-KPRM Robust