Results 21 to 30 of about 1,622,978 (141)
采用电化学-多相催化反应器研究了苯酚的电化学氧化过程。实验考察了不同催化剂存在的条件下,各影响因素包括电解电压、支持电解质浓度、废水的初始pH、不同催化剂载体等条件对其电解效果的影响。实验结果表明,该反应器电解苯酚的最佳操作条件是电压25V、Na2SO4质量浓度1000mg/L、pH2.5。在该条件下,分别采用ZSM-5、CuO/ZSM-5、Fe2O3/ZSM-5作为填料时,其对苯酚的去除率分别为45.2%、60.2%、83.5%,表明催化剂的加入强化了电化学降解苯酚的效果 ...
贾保军, 张东, 张爱丽, 周集体
doaj +2 more sources
ABSTRACT Electrochemical carbon dioxide reduction reaction (CO2RR) powered by renewable electricity offers a sustainable route for producing value‐added carbonaceous chemicals. Herein, a three‐membrane electrolyzer was employed to directly co‐generate carbon monoxide (CO), chlorine (Cl2), and potassium carbonate (K2CO3) from the electrolysis of CO2 and
Shuai Wu +10 more
wiley +1 more source
《2019年诺贝尔化学奖的电化学解读》专辑导读 2019年诺贝尔化学奖颁给了美国德克萨斯大学奥斯汀分校的约翰·古迪纳夫(John B. Goodenough)、美国纽约州立大学宾汉姆顿分校的斯坦利·惠廷厄姆(M. Stanley Whittingham)和日本旭化成公司的吉野彰(Akira Yoshino)三位科学家以表彰他们对锂电池研发的卓越贡献.
《电化学》编辑部
core
ABSTRACT Photocatalysis has emerged as a promising approach for solar energy conversion and environmental remediation. However, its practical implementation is still hindered by limited charge‐separation efficiency, slow surface reaction kinetics, and insufficient catalyst stability.
Mengting Zhang +5 more
wiley +1 more source
为了提高直接甲酸燃料电池(DFAFC)中炭载Pd(Pd/C)催化剂对甲酸氧化的电催化性能,用回流法制备了磷钼酸(PMA)修饰的炭载Pd(PMA-Pd/C)催化剂.并用谱学技术和电化学技术表征了催化剂的组分和结构,发现PMA通过化学作用而牢固地固定在Pd表面.由于PMA-Pd/C催化剂能抑制甲酸的自分解,因此,PMA-Pd/C催化剂对甲酸氧化的电催化性能优于Pd ...
唐亚文 +3 more
core +6 more sources
ABSTRACT Magnesium hydride (MgH2) is a promising solid‐state hydrogen storage material due to its high gravimetric capacity and excellent reversibility. However, its practical application is hindered by high thermodynamic stability and sluggish reaction kinetics.
Xingyang Chen +6 more
wiley +1 more source
ABSTRACT Developing electrode materials with high capacity and outstanding activity is essential for energy storage and conversion technologies. However, integrating multiple functions into a single material remains challenging. Herein, we synthesized a novel CoP@NiCo layered double hydroxide (CoP@NiCo‐LDH) nano‐electrode using hydrothermal and ...
Ruiyu Li +9 more
wiley +1 more source
ABSTRACT Currently, the photocatalytic performance of ZnO has been severely limited by its weak light response ability and sluggish charge carrier dynamics, which considerably hinder its extensive application in photocatalytic fields. Herein, through anchoring the synthesized K6PMo11FeO40·nH2O (PMo11Fe) onto ZnO nanosheets, a novel S‐scheme ...
Xinjia Zhang +8 more
wiley +1 more source
ABSTRACT Lignin hydrogenolysis is a promising route to separable aromatic monomers, yet practical upgrading is still hindered by macromolecular mass‐transfer limitations and the aggregation/deactivation of metal sites. Herein, we propose a “dual‐confinement” strategy to construct ultrafine Ru nanoclusters supported on lignin‐based N‐doped hierarchical ...
Tianjin Li +11 more
wiley +1 more source
研究了利用新型多元微电解联合催化氧化技术处理高浓度制药废水。在制药废水pH=3.5时,随着微电解处理停留时间的延长,其COD去除率不断上升,最高可达60%。催化氧化过程中使用双氧水为氧化剂,最佳添加量和反应pH分别为0.2%、3.0。为保证微电解稳定高效,进行了两级微电解+催化氧化处理制药废水的中试研究。结果表明,两级微电解耦合催化氧化处理制药废水中试COD去除效果稳定,微电解停留3 h时,最高去除率可达68.5%。
王坤 +4 more
doaj +2 more sources

