黑龙江广播电视技术 Pub Date : 2026-01-28 DOI: 10.61558/2993-074x.3588

Zi-Wei Feng, Hai-Zhong Chen, Xiao Duan, Ling Tang, Yun-Kun Zhao, Long Huang

{"title":"Carbon Supported Octahedral PtNi Nanoparticles (Oct-PtNi/C) as a Cathode Catalyst for Proton Exchange Membrane Fuel Cells (PEMFCs) with Improved Activity and Durability","authors":"Zi-Wei Feng, Hai-Zhong Chen, Xiao Duan, Ling Tang, Yun-Kun Zhao, Long Huang","doi":"10.61558/2993-074x.3588","DOIUrl":"https://doi.org/10.61558/2993-074x.3588","url":null,"abstract":"Proton exchange membrane fuel cells (PEMFCs) are considered as a promising renewable power source. However, the massive commercial application of PEMFCs has been greatly hindered by their high expense and less-satisfied performance mainly due to the sluggish oxygen reduction reaction (ORR) kinetics even on state-of-the-art Pt catalyst. Octahedral PtNi nanoparticles (oct-PtNi NPs) with excellent ORR activity in a half-cell have been widely studied, while their performance in membrane electrode assembly (MEA) has much less reported. Herein, we investigated the MEA performance using the carbon supported oct-PtNi NPs (oct-PtNi/C) as the cathode catalyst. Under the mild acid washing condition, the surface Ni atoms of oct-PtNi/C were largely removed, and the performance of the MEA using the acid-leaching oct-PtNi/C (PNC-A) as the cathode catalyst was greatly improved. The maximum power density of the MEA reached 1.0 W·cm–2 with the cathode Pt loading of 0.2 mg·cm–2, which is 15% higher than that using Pt/C as the catalyst. After 30k cycles in the accelerated degradation test (ADT), the MEA using PNC-A as the catalyst showed a performance retention of 82%, higher than that of Pt/C (74%). The results reported here verify the possibility of using PNC-A as an advanced cathode catalyst in PEMFCs, thus enhancing the performance of PEMFCs while lowering the amount of expensive Pt.","PeriodicalId":60737,"journal":{"name":"黑龙江广播电视技术","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147893677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Novel Electrolyte Pyridine Additive for Enhancing Cycle Life of Lithium-Ion Batteries 提高锂离子电池循环寿命的新型电解质吡啶添加剂

黑龙江广播电视技术 Pub Date : 2025-12-26 DOI: 10.61558/2993-074x.3584

Peng-Cheng Wang, Ding-Chang Li, Jun-Tao Li, Guang-Bo Lu, Shi-Wen Wang

{"title":"A Novel Electrolyte Pyridine Additive for Enhancing Cycle Life of Lithium-Ion Batteries","authors":"Peng-Cheng Wang, Ding-Chang Li, Jun-Tao Li, Guang-Bo Lu, Shi-Wen Wang","doi":"10.61558/2993-074x.3584","DOIUrl":"https://doi.org/10.61558/2993-074x.3584","url":null,"abstract":"Lithium-ion (Li-ion) battery using a graphite (Gr.) anode and a lithium iron phosphate (LiFePO4, LFP) cathode (Gr.||LFP) has been widespread in energy storage. To match the warranty period of energy storage systems, the lifespan of this kind of Li-ion battery, not only under room temperature but also under relatively high temperature, is critical. Exploration of functional electrolyte additive provides an efficient approach to address this issue. This study reports the usage of pyridine (Py) as a new electrolyte functional additive for Gr.||LFP. In the first cycle, it was found that Py can be reduced before ethylene carbonate and vinylene carbonate, forming a dense and homogeneous solid electrolyte interface (SEI) layer containing rich nitrogen and fluorine elements. Owing to the merits of the SEI layer, the parasitic reactions which occur at the graphite anode and consume the active lithium ion during cycling were suppressed. With the amount of 0.5wt% Py additive in the electrolyte, the Gr.||LFP pouch cell achieved a capacity of 3.2 Ah, exhibiting remarkablly enhanced cycling stability and high-temperature storage capability. Under the experimental conditions of 25 °C and 0.5 P, the capacity retention of the pouch cell reached 95.64% after 500 cycles, while still maintained 82.75% of the initial capacity after 1000 cycles under 45 °C and 1 P. After the 30-day storage at 45 °C and 60 °C, the capacity retention rates were 87.38% and 80.56%, respectively, which are significantly higher than those of the pouch cells with the blank control electrolyte. This work identifies Py as a highly promising electrolyte additive in stabilizing the graphite-based anode of Li-ion battery under both room temperature and high temperature.","PeriodicalId":60737,"journal":{"name":"黑龙江广播电视技术","volume":"31 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147883026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Significantly Enhanced Oxygen Reduction Reaction Activity in Co-N-C Catalysts through Synergistic Boron Doping 协同硼掺杂显著提高Co-N-C催化剂的氧还原反应活性

黑龙江广播电视技术 Pub Date : 2025-09-27 DOI: 10.61558/2993-074x.3577

Chang Lan, Jingsen Bai, Xin‐Yuan Guan, Shuo Wang, Nan-Shu Zhang, Yu-Qing Cheng, Jin-Jing Tao, Yuyi Chu, Mei-Ling Xiao, Chang-Peng Liu, Wei Xing

{"title":"Significantly Enhanced Oxygen Reduction Reaction Activity in Co-N-C Catalysts through Synergistic Boron Doping","authors":"Chang Lan, Jingsen Bai, Xin‐Yuan Guan, Shuo Wang, Nan-Shu Zhang, Yu-Qing Cheng, Jin-Jing Tao, Yuyi Chu, Mei-Ling Xiao, Chang-Peng Liu, Wei Xing","doi":"10.61558/2993-074x.3577","DOIUrl":"https://doi.org/10.61558/2993-074x.3577","url":null,"abstract":"The weak adsorption energy of oxygen-containing intermediates on Co center leads to a considerable performance disparity between Co-N-C and costly Pt benchmark in catalyzing oxygen reduction reaction (ORR). In this work, we strategically engineer the active site structure of Co-N-C via B substitution, which is accomplished by the pyrolysis of ammonium borate. During this process, the in-situ generated NH3 gas plays a critical role in creating surface defects and boron atoms substituting nitrogen atoms in the carbon structure. The well-designed CoB1N3 active site endows Co with higher charge density and stronger adsorption energy toward oxygen species, potentially accelerating ORR kinetics. As expected, the resulting Co-B/N-C catalyst exhibited superior ORR performance over Co-N-C counterpart, with 40 mV, and fivefold enhancement in half-wave potential and turnover frequency (TOF). More importantly, the excellent ORR performance could be translated into membrane electrode assembly (MEA) in a fuel cell test, delivering an impressive peak power density of 824 mW·cm–2, which is currently the best among Co-based catalysts under the same conditions. This work not only demonstrates an effective method for designing advanced catalysts, but also affords a highly promising non-precious metal ORR electrocatalyst for fuel cell applications.","PeriodicalId":60737,"journal":{"name":"黑龙江广播电视技术","volume":"31 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jelectrochem.xmu.edu.cn/cgi/viewcontent.cgi?article=3577&context=journal","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147895465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

基于YOLOv9的小目标检测算法改进研究基于YOLOv9的小目标检测算法改进研究

黑龙江广播电视技术 Pub Date : 2025-09-03 DOI: 10.54254/3050-2187/2025.26504

延臣王, 景博张

引用次数: 3

电爆炸法制备纳米磁性粉体及其吸波性能研究电爆炸法制备纳米磁性粉体及其吸波性能研究

黑龙江广播电视技术 Pub Date : 2025-07-16 DOI: 10.54254/3050-2187/2025.25077

红飞程, 智勇王, 大庆黄, 桐张, 鹏瑞刘

{"title":"电爆炸法制备纳米磁性粉体及其吸波性能研究","authors":"红飞程, 智勇王, 大庆黄, 桐张, 鹏瑞刘","doi":"10.54254/3050-2187/2025.25077","DOIUrl":"https://doi.org/10.54254/3050-2187/2025.25077","url":null,"abstract":"采用电爆炸法制备了纳米磁性金属粉体。通过扫描电子显微镜分析了粉体的微观形态，并对其粒径大小及分布情况进行了统计分析，结果显示粉体粒径范围为43-75纳米。通过能谱分析和X射线衍射分析，研究了粉体的元素组成和物相组成，结果显示，由高纯金属铁丝、高纯镍丝制备的纳米粉体的成分较为单一，分别为α-Fe （Im-3m）、Ni（Fm-3m），而由铁镍合金丝制备的纳米粉体的物相则包括单质Fe、Ni（Fm-3m）、FeNi3（Pm-3m）和其它杂质。通过测量纳米粉体的磁滞回线，研究了粉体的饱和磁化强度、矫顽力等磁性能参数，并探讨了粉体微观形态对磁性能的影响。结果显示，呈链状结构的纳米铁粉的饱和磁化强度、矫顽力相对较高。使用同轴法测量了铁、钴、镍及铁镍合金粉体在添加量为50%时的电磁参数。结果表明，在2-18GHz频率范围内，纳米铁粉的损耗角正切值最大。利用软件CST仿真计算了纳米粉体的吸波性能，研究了粉体的阻抗匹配特性及反射率，并通过实验验证了纳米铁粉质量分数50%时的吸波性能。","PeriodicalId":60737,"journal":{"name":"黑龙江广播电视技术","volume":"3 3","pages":"43-51"},"PeriodicalIF":0.0,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147919466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

基于GC-MS和电子鼻的茉莉花茶香气成分分析基于GC-MS和电子鼻的茉莉花茶香气成分分析

黑龙江广播电视技术 Pub Date : 2025-06-26 DOI: 10.54254/3050-2187/2025.24582

晓宇谢, 芊宁, 成荣温, 杰庞

引用次数: 0

Electrocatalytic Nitric Oxide Reduction to Yield Ammonia over Fe3C Nanocrystals 在Fe&lt；sub>3</sub&gt；C纳米晶体上电催化氧化氮还原产氨

黑龙江广播电视技术 Pub Date : 2025-04-27 DOI: 10.61558/2993-074x.3525

Sen Lin, Lang Zhang, Tong Hou, Junyang Ding, Zhanhui Peng, Yifan Liu, Xijun Liu

{"title":"Electrocatalytic Nitric Oxide Reduction to Yield Ammonia over Fe3C Nanocrystals","authors":"Sen Lin, Lang Zhang, Tong Hou, Junyang Ding, Zhanhui Peng, Yifan Liu, Xijun Liu","doi":"10.61558/2993-074x.3525","DOIUrl":"https://doi.org/10.61558/2993-074x.3525","url":null,"abstract":"Nitric oxide (NO), which generally originates from vehicle exhaust and industrial flue gases, is one of the most serious air pollutants. In this case, the electrochemical NO reduction reaction (NORR) not only removes the atmospheric pollutant NO but also produces valuable NH3. Hence, through the synthesis and modification of Fe3C nanocrystal catalysts, the as-obtained optimal sample of Fe3C/C-900 was adopted as NORR catalyst at ambient conditions. As a result, the Fe3C/C-900 catalyst showed an NH3 Faraday efficiency of 76.5% and an NH3 yield rate of 177.5 μmol·h–1·cm–2 at a working potential of –0.8 and –1.2 V versus reversible hydrogen electrode (vs. RHE), respectively. And it delivered a stable NORR activity during the electrolysis. Moreover, we attribute the high NORR properties of Fe3C/C–900 to two aspects: one is the enhanced intrinsic activity of Fe3C nanocrystals, including the lowering of the energy barrier of rate-limiting step (*NOH→*N) and the inhibition of hydrogen evolution; on the other hand, the favorable dispersion of active components, the effective adsorption of gaseous NO, and the release of liquid NH3 products facilitated by the porous carbon substrate.","PeriodicalId":60737,"journal":{"name":"黑龙江广播电视技术","volume":"31 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jelectrochem.xmu.edu.cn/cgi/viewcontent.cgi?article=3525&context=journal","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on Dopamine Electrochemical Sensing Based on Au@MoS2 基于Au@MoS&lt；sub>2</sub&gt；的多巴胺电化学传感研究

黑龙江广播电视技术 Pub Date : 2025-03-28 DOI: 10.61558/2993-074x.3503

Ning An, Ni Su, Liu Jian-Yu, Wang Qi-Yan, Xin Li

{"title":"Study on Dopamine Electrochemical Sensing Based on Au@MoS2","authors":"Ning An, Ni Su, Liu Jian-Yu, Wang Qi-Yan, Xin Li","doi":"10.61558/2993-074x.3503","DOIUrl":"https://doi.org/10.61558/2993-074x.3503","url":null,"abstract":"Dopamine (DA) is a vital neurotransmitter, and accurate detection of its concentration is critical for both clinical diagnostics and neuroscience research. Due to its electrochemical activity, DA is commonly detected using electrochemical methods, which are favored for their simplicity, fast response time, and suitability for in vivo analysis. In this work, a highly sensitive DA electrochemical sensor was developed using an Au@MoS2 composite, created by modifying molybdenum disulfide (MoS2) nanosheets with gold nanoparticles through HAuCl4 reduction, and it was aimed at enhancing DA adsorption and improving detection performance. Scanning Electron Microscopy (SEM), transmission electron microscopy (TEM), Energy Dispersive Spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS) and X-ray Diffraction (XRD) confirmed the successful synthesis of Au@MoS2 and the uniform distribution of gold nanoparticles across the MoS2 nanosheets. Then, the electrochemical characterization demonstrated that the Au@MoS2/GCE exhibited distinct oxidation peaks in a 10 μmol·L–1 DA solution, with significantly enhanced electrochemical activity compared to both unmodified GCE and pristine MoS2. Furthermore, differential pulse voltammetry (DPV) further revealed a strong linear relationship between DA concentration and the current response in the range of 800 nmol·L–1 to 10 μmol·L–1, with a low detection limit (LOD) of 78.9 nmol·L–1 (S/N = 3). Additionally, the sensor showed excellent selectivity against other interfering substances. Moreover, the laser-induced Au@MoS2 (LIAu@MoS2), with its abundance of negatively charged surface defects, enabled the ultra-sensitive detection of the ultra-low concentrations of DA. In conclusion, the successfully fabricated Au@MoS2 based sensor offers advantages such as low cost, ease of operation, and scalability, making it a promising candidate for biosensing applications due to its enhanced DA detection capabilities.","PeriodicalId":60737,"journal":{"name":"黑龙江广播电视技术","volume":"31 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

In-situ Electrodeposition of FeCo-MOF on Au Ultramicroelectrode for Highly Sensitive Detection of Epinephrine 在Au超微电极上原位电沉积FeCo-MOF用于肾上腺素的高灵敏度检测

黑龙江广播电视技术 Pub Date : 2025-03-26 DOI: 10.61558/2993-074x.3537

Yan Chen, Siyu Jian, Wan Si-Yu, Cui Xiao-Tong, Liu Zhong-Gang, Guo Zheng

{"title":"In-situ Electrodeposition of FeCo-MOF on Au Ultramicroelectrode for Highly Sensitive Detection of Epinephrine","authors":"Yan Chen, Siyu Jian, Wan Si-Yu, Cui Xiao-Tong, Liu Zhong-Gang, Guo Zheng","doi":"10.61558/2993-074x.3537","DOIUrl":"https://doi.org/10.61558/2993-074x.3537","url":null,"abstract":"Metal-organic framework (MOF) nanostructures have emerged as a prominent class of materials in the advancement of electrochemical sensors. The rational design of bimetallic MOF-functionalized microelectrode is of importance for improving the electrochemical performance but still in great challenge. In this work, the bimetallic FeCo-MOF nanostructures were assembled onto a gold disk ultramicroelectrode (Au UME, 5.2 μm in diameter) via an in-situ electrodeposition method, which enhanced the sensitive detection of epinephrine (EP). The in-situ electrodeposited FeCo-MOF exhibited a characteristic nanoflower-like morphology and was uniformly dispersed on the Au UME . The FeCo-MOF/Au UME demonstrated excellent electrochemical performance on the detection of EP with a high sensitivity of 36.93 μA·μmol–1·L·cm–2 and a low detection limit of 1.28 μmol·L–1. It can be attributed to the nonlinear diffusion of EP onto the ultra-micro working substrate, coupled with synergistical catalytic activity of the bimetallic Fe, Co within MOF structure. Furthermore, the FeCo-MOF/ Au UME has been successful applied to the analysis of EP in human serum samples, yielding high recovery rates. These results not only contribute to the expansion of the research area of electrochemical sensors, but also provide novel insights and directions into the development of high-performance MOF-based electrochemical sensors.","PeriodicalId":60737,"journal":{"name":"黑龙江广播电视技术","volume":"31 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jelectrochem.xmu.edu.cn/cgi/viewcontent.cgi?article=3537&context=journal","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147916228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A CNT Intercalated Co Porphyrin-based Metal Organic Framework Catalyst for Oxygen Reduction Reaction 碳纳米管插层钴卟啉基金属有机骨架催化剂的氧还原反应

黑龙江广播电视技术 Pub Date : 2025-01-28 DOI: 10.61558/2993-074x.3502

Peipei He, Jinhua Shi, Xiaoyu Li, Mingjie Liu, Fang Zhou, Jing He, Zhongjian Li, Xinsheng Peng, Qinggang He

{"title":"A CNT Intercalated Co Porphyrin-based Metal Organic Framework Catalyst for Oxygen Reduction Reaction","authors":"Peipei He, Jinhua Shi, Xiaoyu Li, Mingjie Liu, Fang Zhou, Jing He, Zhongjian Li, Xinsheng Peng, Qinggang He","doi":"10.61558/2993-074x.3502","DOIUrl":"https://doi.org/10.61558/2993-074x.3502","url":null,"abstract":"The poor electronic conductivity of metal-organic framework (MOF) materials hinders their direct application in the field of electrocatalysis in fuel cells. Herein, we proposed a strategy of embedding carbon nanotubes (CNTs) during the growth process of MOF crystals, synthesizing a metalloporphyrin-based MOF catalyst TCPPCo-MOF-CNT with a unique CNT-intercalated MOF structure. Physical characterization revealed that the CNTs enhance the overall conductivity while retaining the original characteristics of the MOF and metalloporphyrin. Simultaneously, the insertion of CNTs generated adequate mesopores and created a hierarchical porous structure that enhances mass transfer efficiency. X-ray photoelectron spectroscopic analysis confirmed that the C atom in CNT changed the electron cloud density on the catalytic active center Co, optimizing the electronic structure. Consequently, the E1/2 of the TCPPCo-MOF-CNT catalyst under neutral conditions reached 0.77 V (vs. RHE), outperforming the catalyst without CNTs. When the TCPPCo-MOF-CNT was employed as the cathode catalyst in assembling microbial fuel cells (MFCs) with Nafion-117 as the proton exchange membrane, the maximum power density of MFCs reached approximately 500 mW·m–2.","PeriodicalId":60737,"journal":{"name":"黑龙江广播电视技术","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147331921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

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