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电吸附除盐技术是一种正在发展的新型的除盐技术,其中电极材料是制约电吸附性能的关键,也是电吸附技术研究的热点。介绍了电吸附技术原理和4类碳基电极材料的研究进展,对比分析了4类电极材料的优缺点,指出单一电极材料的吸附容量小,不能满足其工业要求,在低成本的条件下对电极材料进行改性处理是今后电吸附电极材料的主要研究方向。
董旭明 +4 more
doaj +2 more sources
电吸附是一种利用电势差为驱动力,促使离子被吸附到带电电极表面的除盐技术,具有低能耗、不添加化学试剂、环境友好等显著特点。从电吸附理论、电极材料、电吸附装置等方面综述了电吸附除盐技术的研究和应用进展,并展望了电吸附技术在水处理除盐领域的研究方向和应用前景。
陈兆林 +3 more
doaj +2 more sources
电吸附是一种相对新兴的水处理技术,其中电极是制约电吸附性能的关键因素,也是电吸附研究的热点。综述了近年来电吸附电极的研究情况,主要介绍了以活性炭(纤维)、石墨烯、炭气凝胶、碳纳米材料为原材料的电极制备研究进展。其中石墨烯和碳纳米材料基体电极具有良好的循环使用性能和高吸附容量,是目前最具应用前景的一类电吸附电极,是今后电吸附电极研究的主要方向。
张世春 +4 more
doaj +2 more sources
采用水热合成法制备了二氧化钛改性的石墨烯基材料(RGO/TiO2),将其组装成CDI电极,探究了电吸附去除低浓度Cd2+的效果,并与RGO电极进行了比较。结果表明,2种电极对Cd2+的电吸附量随工作电压的升高、Cd2+初始浓度的增大而增大,随温度的升高而减小;循环流速对Cd2+的吸附效果影响不明显。RGO/TiO2电极CDI除Cd2+性能优于RGO电极,电吸附过程满足准一级动力学方程和Freundlich等温吸附模型。
徐斌 +7 more
doaj +2 more sources
ABSTRACT Conventional lithium‐ion battery cathodes predominantly rely on reversible lithium intercalation in bulk, which inevitably induces phase transitions, transition metal migration, and voltage decay. Electrolytic anion adsorption pseudocapacitance provides a chance for bypassing these issues via a surface‐dominated reaction, especially in ...
Hongjin Ren +10 more
wiley +1 more source
ABSTRACT Rationally designing an electrocatalyst to achieve stable and efficient urea oxidation reaction (UOR) is crucial but still challenging, especially for ampere‐level application. Herein, Mn and Fe dual‐doped Ni0.85Se (Mn/Fe–Ni0.85Se) catalyst is synthesized via a facile and scalable electrodeposition and followed by selenization.
Guanglin Zhu +6 more
wiley +1 more source
ABSTRACT Although alloy‐based materials present potential for peroxymonosulfate (PMS) activation, metal ion leaching remains severely restricted during the pollution degradation process. Herein, the porous carbon‐supported Fe–Cu alloy derived from industrial copper slag was prepared to remove the organic pollutants from wastewater while inhibiting the ...
Xuanren Chen +10 more
wiley +1 more source
ABSTRACT The low energy density of sodium‐ion batteries (SIBs) remains a major barrier to their large‐scale deployment. Alloy‐based anodes represent a promising class of materials owing to their high specific capacity and low operating potential for sodium storage. However, their practical application is hindered by severe volume expansion upon cycling.
Chen Wang +10 more
wiley +1 more source
针对电容吸附除盐法中电压低、处理效率低、电极易腐蚀等缺点,对活性炭纤维电极表面进行了覆膜绝缘处理.NaCl模拟溶液实验结果表明,覆膜电极电吸附除盐的最佳操作电压为20 V,最佳作用时间为30 min.对低浓度NaCl溶液(<300 mg/L),溶液电导率去除率可达80%以上.吸附等温线拟合结果表明,低电压(<10 V)时,吸附倾向于Langmuir模型;高电压时,吸附更加符合Freundlich模型.
韩丹 +4 more
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ABSTRACT A central challenge in alkaline water electrolysis is the development of hydrogen evolution reaction (HER) electrocatalysts that simultaneously maintain high activity and structural stability at industrial current densities. Hydroxide‐based supports that facilitate water dissociation are particularly susceptible to over‐reduction and ...
Feng Chen +9 more
wiley +1 more source

