Results 31 to 40 of about 1,622,978 (141)
Advances in Thermoelectric Cu2ZnSnS4: From Structure, Synthesis to Performance
ABSTRACT Thermoelectric technology has the capacity to directly convert waste heat into electricity and vice versa. For a long time, Cu2ZnSnS4 (CZTS) has been extensively researched in the domains of solar cells and photocatalysis due to its exceptional photovoltaic properties, but its wide bandgap prevents it from being favored in thermoelectrics ...
Xiaojun Li +3 more
wiley +1 more source
通过共价交联、原位沉积以及光致还原反应得到Ag@AgCl/GO/CA不溶性光催化颗粒材料,采用SEM、TEM、FT-IR、Raman和BET对该光催化材料的形貌、元素组成及比表面积进行表征。通过光电流及电化学阻抗分析(EIS)评价光催化材料的光电性能,利用ESR自由基检测和猝灭试验分析其光催化机理。结果表明,Ag@AgCl纳米颗粒呈团簇状分布在GO/CA的褶皱状结构上,且Ag和AgCl比例约为1∶1。因存在配位交联作用,Ag@AgCl/GO/CA光催化材料的含氧官能团明显减少,GO的两个特征峰变弱 ...
高大响, 黄小忠, 史和娣
doaj +2 more sources
进行了催化电解法制备二氧化氯和催化剂涂层的研究工作.结果表明,电解催化法制备的ClO2,其纯度可达95%以上,最高产率接近4×10-7g/s·cm2,反应速率提高了1倍.同时,由于电极表面催化剂的存在,降低了反应时的分解电压.同时还考察了不同催化剂组分以及温度对产率的影响.
柏云 +4 more
doaj
ABSTRACT To address critical issues in lithium–sulfur batteries, such as slow polysulfide conversion kinetics and shuttle effects, we designed and synthesized a high‐performance nanoalloy catalyst through a defect reconstruction strategy, aiming to enhance the electrochemical performance of batteries.
Zhijun Zhao +10 more
wiley +1 more source
ABSTRACT A facile coprecipitation‐pyrolysis strategy was employed to fabricate Cu/Co nanoparticles (NPs) embedded in nitrogen‐doped carbon matrices (Cu/Co@N‐C) through the carbonization of CuCo‐MOF precursors. Moreover, monometallic counterparts of Cu@N‐C and Co@N‐C were also prepared via carbonization of bimetallic CuZn‐MOF and CoZn‐MOF, respectively.
Weinan Yao +7 more
wiley +1 more source
ABSTRACT Metal nanoclusters provide abundant catalytically active sites and unique electronic structures that are highly beneficial for enhancing photocatalytic performance; however, their practical application is often hindered by poor photostability.
Yiying Qin +6 more
wiley +1 more source
Efficient Photocatalytic Removal of Toluene by Synergistic FeCe/TiO2: Performance and Mechanism
ABSTRACT Efficient removal of volatile organic compounds (VOCs) in confined spaces is crucial for environments such as spacecraft and deep‐sea submarines. Metal modification is an effective strategy to enhance the light absorption capacity of titanium dioxide (TiO2) and suppress the recombination of photogenerated charge carriers.
Ke Xu +10 more
wiley +1 more source
本发明涉及一种用于固体聚合物电解质水电解装置的阳极催化剂。本发明制备了一种催化剂,其分子式为IrxRu1-xMyOz,其中0<x≤1,0<y≤0.3,1.5<z≤2.9,M为过渡金属元素包含Mo,W,Cr中的一种或多种。按催化剂总重计,所含M的重量比小于10wt%。所要求的催化剂特征在于:第三组分(或第四组分)的加入减小了催化剂微晶颗粒,增大了催化剂的比表面积,增加了催化剂的催化活性。将其用作SPE水电解池阳极催化剂时具有较低的过电势和长寿命。所述的催化剂用于SPE水电解装置的析氧电极、催化剂-膜组合件(
张益宁 +3 more
core
ABSTRACT The commercialization of lithium–sulfur batteries (Li–S batteries) has been hindered by the shuttle effect of lithium polysulfides (LiPSs) and sluggish redox kinetics. In this study, we constructed a three‐dimensional hollow conductive network host material for sulfur with synergistic enhancement effects.
Jie Yang +6 more
wiley +1 more source
本发明揭示了一种光电催化电解水的方法和装置及其应用,通过将原水注入分隔设有光电阳极室和光电阴极室的电解水反应器,并至少在光能量辐照下分解原水为弱碱性水和酸性水;其中光电阳极室内设有光电阳极电极,阳极材料选用的催化剂,其光生电子还原电势负于H+还原为H2的电势,且光生空穴的氧化电势正于OH-氧化为O2的电势,而其中光电阴极室设有光电阴极电极,且光能量辐照面向光电阳极电极。通过分别设置的进水口、出水口及排气口,在光能量辐照下电解原水为弱碱性水和酸性水,较之于传统电解水技术,不需要外加电能 ...
陆敏
core

