关键词： 重型卡车   电气化   转型   新能源重卡   氢燃料重卡  

摘要： 近年来,中国重卡产销量进入震荡下行和深度调整阶段,动力构成优化速度加快。在“双碳”目标和汽车电动化两大国家战略背景下,中国重卡正在经历从燃油车向电动、氢重卡的逐渐转型。各技术路线的经济性直接影响其发展速度和发展规模,不同技术路线的重卡在实际使用过程中各有优势,政策层面对各技术路线的发展导向和支持力度也明显不同。未来中国重卡动力构成优化速度将明显加快,预计短期内LNG重卡依然是替代柴油重卡的主力,电动重卡销量将明显提升,氢燃料电池重卡继续保持小规模增长,并有望于“十五五”期间取得明显的技术突破。建议沿着油-气(LNG为主)-电-氢的道路稳步推进重卡的电气化进程。

关键词： 产业转型升级   稳步推进   能源结构调整   电源结构   电气化   电能替代   高端论坛   碳中和  

摘要： “提升电气化水平对于推动能源清洁高效利用、助力产业转型升级,实现碳达峰碳中和目标具有积极意义。”2023年2月24日,工信部节能与综合利用司司长黄利斌在“第二届中国电气化发展高端论坛暨第三届电能替代产业发展高峰论坛”上指出。作为促进能源结构调整、绿色低碳转型的重要路径,当前我国电气化进程保持稳步推进态势。而随着新型零碳电力系统加速构建,电网规模扩大及电源结构变化给电气化带来了新挑战,应加速推动实现电能融合、多种能源协同高效运行。

关键词： 中央一号文件   乡村振兴战略   能源体系   农村能源   外部输入   能源消费   电气化   能源转型  

摘要： 农村能源是乡村振兴战略实施的重要动力,也是“双碳”目标实现的重要抓手。长期以来,农村能源处于边缘化困境,呈现能源供给以外部输入为主、能源消费以煤炭为主的特征,难以满足农民美好生活清洁用能需求。近5年来,中央一号文件持续聚焦“实施乡村清洁能源建设、加快推进农村电网巩固提升、支持农村能源新模式新业态发展”,电力将乘势“下乡”,助力农村能源转型与乡村振兴融合发展,推动乡村电气化水平持续提升。

关键词： 单一市场   电气化   宾利汽车   独特性   总经理  

摘要： 面对全球最大的单一市场,宾利未来有何发展计划?宾利汽车中国总经理彼夕乐向我们透露了一些关键信息中国市场的独特性Q:对于宾利品牌而言,中国相较全球其他市场有怎样的独特性及重要性?彼夕乐:我非常热爱中国,自从2005年来到这里,我已经在中国工作和生活了17年的时间,这么多年来,我看到中国市场展现出了惊人的发展速度。

关键词： Anodes  

摘要： The interactions between discharge plasmas and an aqueous solutions can enable the production of reactive species and charge transfer at the plasma-liquid interface, forming the plasma electrochemical system (PES). The PES are promising for diverse applications, such as nanomaterials synthesis, due to the activation of the solution chemistry by the plasma. In this paper, we investigate the influence of the solution's pH value on the formation of silver nanoparticles (AgNPs) in a direct current (DC) PES. Dual argon DC plasmas are generated in an H-type electrochemical cell containing an aqueous solution of silver nitrate with pH values in the range of 1.99-10.71. By this design, the solution acts as a cathode at one end of the H-type cell, and as an anode at the other end. The results show that the AgNPs are formed at the anode except for the solution with the pH value of 1.99. However, at the cathode, the AgNPs only appear in the solution with the pH value of 10.71. We find that the solvated electrons and hydrogen peroxide produced by the plasma-liquid interactions are responsible for the Ag+ reduction at the solution anode and the solution cathode, respectively.

关键词： Depollution   Electrodeposition   Heavy metal   Thin film   Separation   Oxides  

摘要： A very simple electrochemical process was developed for a high efficient elimination of Pb(II) from wastewaters. The principle is to remove soluble Pb(II) as oxide(s) adherent thin films only on the effect of an imposed specific potential by chronoamperometric method and an adequate pH, without adding reagents, at room temperature and in a conventional container. This treatment is very efficient for removing 99.99% of Pb(II) and directly reaching acceptable concentrations for the environment and drinking water standards, with low energy input. Firstly, the key parameters that could influence the efficiency of lead removal, such as the pH and the adequate values of potential, the initial concentration and the duration, were studied in pure water. Systematically, the solution was analyzed to quantify the concentration of Pb(II), and the recovered solid as an adherent thin film was characterized by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS) to determine its nature according to the experimental conditions. In a second part, the same treatment was applied with the optimized conditions in the presence of chemical ionic species and other heavy metals such as Cd(II), Ni(II) or Cu(II) to confirm the possibility to have a total elimination and separation of lead from these other heavy metals. To conclude, this electrochemical process was applied with success on an effluent coming from a wastewater treatment plant (WWTP), which confirms the real interest of this easy electrochemical process for an efficient separation and purification of wastewaters containing soluble lead.

关键词： 电气化   出行需求   研发能力   研发中心   招聘   建筑面积   天津   科技  

摘要： 完成上市计划的纬湃科技,正加速其在电气化领域的布局。2021年11月2日,纬湃科技天津研发中心正式投入使用,该中心总建筑面积为9000 m2,计划招聘500名员工。随着天津研发的落成及使用,纬湃科技将进一步加强其在亚太区的研发能力,以满足快速增长的电动出行需求。

关键词： Deionization   Capacitive electrosorption   Electrodialytic separation   Continuous   Low energy  

摘要： Significant efforts have been made to develop advanced energy-efficient desalination technologies for delivering freshwater. Capacitive deionization and electrodialysis represent electric field-driven separation technologies for water desalination. In this study, a new design for a membrane stack configuration based on an integrated capacitive-electrodialysis process (CapED) was proposed for continuous and energy-efficient desalination. From the activated carbon anode to the cathode, an anion exchange membrane (AEM), a cation exchange membrane (CEM), an AEM, and a CEM were placed in order (anode/AEM/CEM/AEM/CEM/cathode). Herein, three chambers between two capacitive electrodes were separated by a CEM and an AEM, which enabled simultaneous and continuous generation of desalinated and concentrated solutions. During charging, capacitive electrosorption and electrodialytic separation accounted for desalination. During discharging, the energy stored by capacitive electrosorption was utilized for desalination through dialytic separation. Therefore, continuous desalination could be achieved by a cyclic charging/discharging process. In addition, the salt removal amount was enhanced by increasing the voltage with respect to the different capacitive and electrodialytic contributions. The energy consumption ranged between 0.53 and 1.45 kWh/kg with high charge efficiency, indicating a low energy requirement. Our research showed that CapED was effective when integrating capacitive and electrodialytic contributions for electrochemical water desalination.

关键词： PbO2 anode   Fluidized 3DER   Optimization   Particle electrode   Central composite design  

摘要： A three-dimensional electrochemical reactor with Ti/SnO2-Sb/beta-PbO2 anode and granular activated carbon (3DER-GAC) particle electrodes were used for degradation of 2,4-dichlorophenol (2,4-DCP). Process modeling and optimization were performed using an orthogonal central composite design (OCCD) and genetic algorithm (GA), respectively. Ti/SnO2-Sb/beta-PbO2 anode was prepared by electrochemical deposition method and then its properties were studied by FESEM, EDX, XRD, Linear sweep voltammetry and accelerated lifetime test techniques. The results showed that lead oxide was precipitated as highly compact pyramidal clusters in the form of beta-PbO2 on the electrode surface. In addition, the prepared anode had high stability (170 h) and oxygen evolution potential (2.32 V). A robust quadratic model (p-value < 0.0001 and R-2 > 0.99) was developed to predict the 2,4-DCP removal efficiency in the 3DER-GAC system. Under optimal conditions (pH = 4.98, Na2SO4 concentration = 0.07 M, current density = 35 mA cm(-2), GAC amount = 25 g and reaction time = 50 min), the removal efficiency of 2,4-DCP in the 3DER-GAC system and the separate electrochemical degradation process (without GAC particle electrode) were 99.8 and 71%, respectively. At a reaction time of 80 min, the TOC removal efficiencies in the 3DER-GAC and the separate electrochemical degradation system were 100 and 57.5%, respectively. Accordingly, the energy consumed in these two systems was calculated to be 0.81 and 1.57 kWh g(-1) TOC, respectively. Based on the results of LC-MS analysis, possible degradation pathways of 2,4-DCP were proposed. Trimerization and ring opening reactions were the two dominant mechanisms in 2,4-DCP degradation. (C) 2021 Elsevier Ltd. All rights reserved.