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[Virtual Presenter] Good morning everyone today I would like to talk to you about our research project: self-supported bimetallic nickel based catalysts for urea electrocatalytic oxidation. This project focuses on an innovative approach to increase the efficiency and reduce energy costs of fuel cells through the use of bimetallic nickel based catalysts. We will be discussing the findings of our research as presented by Sundus Umer and Prof. Liu Jia of Tianjin University. I look forward to hearing your questions and feedback!.

[Audio] This thesis presents a self-supported bimetallic nickel based catalyst for electrocatalytic oxidation of urea. This catalyst has an improved performance in terms of activity selectivity and stability in comparison to other catalysts. The structure of this catalyst consists of nickel and cobalt nanoparticles on the surface of a nitrogen doped graphene sheet. Results show that this catalyst is suitable for electrocatalytic oxidation of urea with high activity selectivity and stability. This research provides a new approach for the development of electrocatalytic oxidation of urea with enhanced performance..

Content. 3. Conclusion Research Project Overview Acknowledgement.

[Audio] We have developed a new bimetallic nickel-based catalysts for the electrocatalytic oxidation of urea that are self-supported and show high activity under alkaline conditions. Moreover these catalysts have high stability allowing for extended usage. The overall reaction involves the oxidation of urea to nitrogen and water with the anode producing nitrogen and carbon dioxide and the cathode producing hydrogen and hydroxide resulting in a highly efficient electrocatalytic oxidation of urea..

[Audio] We aim to investigate self-supported bimetallic nickel based catalysts for urea electrocatalytic oxidation. The intermediate steps of the reaction mechanism have been studied as revealed in the table presented in this slide. A detailed analysis of each step was conducted enabling us to gain a comprehensive understanding of the catalytic process. Our results show the catalytic activity of the nickel based bimetallic catalysts for urea electrocatalytic oxidation..

[Audio] Our research on self-supported bimetallic nickel-based catalysts for urea electrocatalytic oxidation has been highlighted in a slide. This study has shown that this type of catalyst can boost performance in urea oxidation reaction (U-O-R--) when higher potentials and slow kinetic properties are required. This is an important discovery in the U-O-R field and I am pleased to present the results..

[Audio] Our research focuses on developing anodic material for self-supported bimetallic nickel based catalysts to achieve maximum efficiency. We also investigate how to facilitate maximum electronic interaction at the lowest required potentials. We hope our research can contribute to further advancements in the field of electrocatalytic oxidation. Thank you..

[Audio] In this project I focused on the development of self-supported bimetallic nickel based catalysts for urea electrocatalytic oxidation. This involved extensive literature review drafting experiments and their protocols characterizing samples evaluating electrocatalytic performance and U-O-R kinetics. Additionally I was able to successfully modify the lattice of the sample to increase its activity at the lowest required potential. Through this research I was able to further understand the underlying mechanisms that facilitate the reaction at low potential..

[Audio] Our research has investigated the use of self-supported bimetallic nickel based catalysts for urea electrocatalytic oxidation. Manganese has been used as its electron ground state is lower than that of nickel and it has a strong affinity with urea resulting in a stronger binding with nitrogen. It was found that manganese is the primary reaction site with the other metal only offering assistance. Additionally it was discovered that the main reaction sites do not swap out during the reaction process..

[Audio] Our research team conducted experiments with bimetallic nickel based catalysts for urea electrocatalytic oxidation. A series of metal oxide precursors were used including iron oxide cobalt oxide silver oxide manganese oxide magnesium oxide indium oxide and tin oxide. A M-screening was performed with each of these catalysts to measure their efficacy in electrocatalytic oxidation. Results are displayed in the table and showed that iron oxide cobalt oxide and silver oxide catalysts were the most effective..

[Audio] We conducted research regarding bimetallic nickel-based catalysts for urea electrocatalytic oxidation. Our experiment showed the catalyst delivering excellent performance with a current density of 112 millivolts and a peak current density of 95.4 aec l. This performance illustrates the potential of these catalysts for further progress in the field..

[Audio] We conducted a comparative study of self-supported bimetallic nickel-based catalysts for urea electrocatalytic oxidation using various metals. Results showed that Fe Co and Ag had higher electron transfer rates lower E-I-S values and the smallest Tafel slope values for urea oxidation. While the use of the M-catalysts gave higher current density they had a higher potential requirement for the urea oxidation reaction..

[Audio] Research has shown that intermetallic structure synergistic effects can lead to enhanced active surface sites and modulated electronic localization which would result in a decrease in onset potential. We have studied this phenomenon through several bimetallic catalysts such as FeAgO2 Fe2CoO4 and AgCoO2..

[Audio] Our research aimed to optimize precursor ratios to develop bimetallic nickel-based catalysts for urea electrocatalytic oxidation. To evaluate catalyst efficiency Linear Sweep Voltammetry (L-S-V--) curves were used in both 1M KOH and 0.33M Urea electrolytes. The optimal ratio of nickel to cobalt resulted in an electrocatalytic current of 2.5 mA/cm2 in the 0.33M Urea electrolyte..

15. 2.1 Fe/Co and Ag/Co co-doped self-supported Catalysts.

16. 2.1 NiS2@MnOx-n复合材料稳定性提升原因探究. d).

17. 2.1 NiS2@MnOx-n复合材料稳定性提升原因探究. (ooz) Luu OZ (o uni Z (q (P (e.

[Audio] We are conducting research to create a self-supported bimetallic nickel based catalyst for the electrocatalytic oxidation of urea. We believe that this catalyst will allow for the most efficient performance while maintaining the lowest potential requirements. Our research plan involves the synthesis characterization and testing of the catalyst and we anticipate that these efforts will be successful..

[Audio] The prepared bimetallic Nickel based catalysts have been found to present an improved electrocatalytic oxidation potential when compared to conventional catalysts as demonstrated by the achieved potential of 1.24V which is significantly higher than the theoretical potential of 0.37 volts of U-O-R--. Compositing the catalysts with other elements also has the potential to further improve electron transfer and Nickel Sulfide incorporation can lead to a substantial boost in U-O-R activity..

[Audio] We conducted research into self-supported bimetallic nickel based catalysts for urea electrocatalytic oxidation. Results have shown that the performance of the catalyst was improved by raising the proportion of Ni3 plus and Co3 plus ions and incorporating Mn into the catalyst..

21. 2.2 NiMnCoS-n材料的形貌表征. tuu Z Luu Z (o uni (o uni Z (e.

22. 2.2 NiMnCoS-n材料表面元素的化学性质. Ni3+比例增加 Co3+比例增加 Mn负移且展宽.

2.2 NiMnCoS-n材料的电化学性能测试. 23. Tafel斜率：电子转移速率快 ECSA：能暴露更多的活性位点 EIS：界面电荷转移电阻小 稳定性提升.

[Audio] Our research investigated self-supported bimetallic Nickel-based catalysts for urea electrocatalytic oxidation. We tested Nickel-Free and Nickel-based catalysts to observe the steps of urea adsorption oxidation dehydrogenation intermolecular N-N coupling C-N cleavage and desorption. Analysis of the results showed promising activity and selectivity towards urea from our catalysts. The most active and selective catalyst for urea electrocatalytic oxidation was NiFe resulting in improved performance..

[Audio] 本研究研发了一种基于双金属镍基催化剂的尿素电催化氧化体系，通过Mn-Ni体系电子泵效应引发的反应位点交换以及掺杂工程构建的NiMnCoS-n体系促进氧化反应，具有极佳的催化活性和稳定性。实验中使用原位电化学拉曼光谱、原位质谱同位素示踪、DFT计算、离位XPS以及选择性失活实验，对复合材料中UOR反应位点交换和Ni(I-I-I--)电子泵效应进行了充分证实。.

[Audio] Our research focused on self-supported bimetallic nickel based catalysts for urea electrocatalytic oxidation. Exchange of reaction sites between hierarchical bimetallic Mn/Ni catalysts triggered by electron pump effect was examined to enhance urea electrocatalytic oxidation. Additionally Ni Co and V ternary synergism was investigated to manipulate pathways and increase efficiency for urea electrocatalytic oxidation. The results of our research have been published in the Journal of Materials Chemistry A and A-C-S Catal. 2022..

[Audio] I have discussed the urea electro-oxidation process characteristics of the catalyst and performance of the catalyst in various conditions. Additionally I have provided an analysis of the various parameters that influence the performance of the catalyst. My work provides a unique insight into the development of self-supported bimetallic nickel based catalysts for urea electrocatalytic oxidation. I hope this information will be beneficial in understanding the potential applications of these catalysts..

敬请批评指正 感谢各位老师!.