CN203811573U - Test setup for the electrochemical behavior of electroactive oxides in molten electrolytes - Google Patents
Test setup for the electrochemical behavior of electroactive oxides in molten electrolytes Download PDFInfo
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- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 239000003792 electrolyte Substances 0.000 title claims abstract description 20
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 166
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 83
- 239000007784 solid electrolyte Substances 0.000 claims abstract description 41
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 16
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 72
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 239000011261 inert gas Substances 0.000 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 abstract 4
- 229910001928 zirconium oxide Inorganic materials 0.000 abstract 4
- 230000006399 behavior Effects 0.000 abstract 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 description 13
- 229910052760 oxygen Inorganic materials 0.000 description 13
- -1 oxygen ions Chemical class 0.000 description 10
- 150000002500 ions Chemical class 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 238000005868 electrolysis reaction Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 235000013980 iron oxide Nutrition 0.000 description 2
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000000840 electrochemical analysis Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
Description
技术领域 technical field
本实用新型属于电活性氧化物电化学行为的测试装置技术领域。具体涉及一种用于熔融电解质中电活性氧化物电化学行为的测试装置。 The utility model belongs to the technical field of testing devices for the electrochemical behavior of electroactive oxides. In particular, it relates to a test device for electrochemical behavior of electroactive oxides in molten electrolyte.
背景技术 Background technique
电解熔融电解质中的金属氧化物是绿色制备金属的一个基本方法。金属氧化物在熔融电解质中一般离解成金属阳离子和氧离子。电解时金属阳离子在阴极被还原，得到金属；而氧离子在阳极被氧化，析出氧气。为制订合理的电解工艺路线，必须掌握在熔融电解质中所制备金属的氧化物对应的电活性离子的氧化还原规律。 Electrolysis of metal oxides in molten electrolytes is a fundamental method for the green preparation of metals. Metal oxides generally dissociate into metal cations and oxygen ions in the molten electrolyte. During electrolysis, metal cations are reduced at the cathode to obtain metals; while oxygen ions are oxidized at the anode to produce oxygen. In order to formulate a reasonable electrolysis process route, it is necessary to grasp the redox law of the electroactive ions corresponding to the metal oxides prepared in the molten electrolyte.
目前，电活性物质的电化学行为研究一般在三电极电解池体系内进行。但在高温下进行电化学行为的测试研究，一方面受到电极（特别是参比电极）以及电解池容器稳定性的限制；另一方面，也会受到熔融电解质本身的电子导电性以及其中非氧化物杂质的干扰。而且，为防止不同极区相互干扰，电解池中一般应设置离子隔离膜，但高温下离子隔离膜的材料选择将更加困难。上述多种原因导致高温电化学测试研究不仅在电解池操作上存在很大困难，而且也会对测试结果的可靠与稳定带来不利影响。掺杂MgO或Y2O3等的ZrO2是一种氧离子传导的固体电解质，只对氧离子具有选择透过性，且在高温下具有良好的稳定性，能够作为电解池的隔离膜或容器。“一种用于测定熔渣中铁氧化物分解电压的电解池”（CN 201310668235.3）专利技术，提供了一种采用ZrO2固体电解质构建测定熔渣中铁氧化物分解电压的电解池，该电解池只设置了两个电极，虽能进行熔渣电解等有关研究，但难以进行稳定、可靠的电活性离子电化学行为的研究测试。 At present, the research on the electrochemical behavior of electroactive substances is generally carried out in a three-electrode electrolytic cell system. However, the testing and research of electrochemical behavior at high temperature is limited by the stability of the electrode (especially the reference electrode) and the electrolytic cell container on the one hand; on the other hand, it is also limited by the electronic conductivity of the molten electrolyte itself and the non-oxidizing interference from impurities. Moreover, in order to prevent the different polar regions from interfering with each other, an ion isolation membrane should generally be installed in the electrolytic cell, but the material selection of the ion isolation membrane will be more difficult at high temperatures. The above-mentioned multiple reasons lead to high temperature electrochemical test research not only has great difficulties in the operation of the electrolytic cell, but also has an adverse effect on the reliability and stability of the test results. ZrO 2 doped with MgO or Y 2 O 3 is a solid electrolyte that conducts oxygen ions. It has selective permeability only for oxygen ions and has good stability at high temperatures. It can be used as a separator for electrolytic cells or container. "An electrolytic cell for measuring the decomposition voltage of iron oxides in molten slag" (CN 201310668235.3) patented technology provides an electrolytic cell using ZrO2 solid electrolyte to measure the decomposition voltage of iron oxides in molten slag. The electrolytic cell only Two electrodes are set up. Although the electrolysis of slag can be carried out, it is difficult to carry out stable and reliable research and testing of the electrochemical behavior of electroactive ions.
发明内容 Contents of the invention
本实用新型旨在克服现有技术存在的缺陷，目的是提供一种结构简单、操作容易、抗干扰能力强和测试结果稳定可靠的用于熔融电解质中电活性氧化物电化学行为的测试装置。 The utility model aims to overcome the defects of the prior art, and aims to provide a test device for the electrochemical behavior of electroactive oxides in molten electrolytes with simple structure, easy operation, strong anti-interference ability and stable and reliable test results.
为实现上述目的，本实用新型采用的技术方案是：所述测试装置包括氧化锆固体电解质管、环状参比铂电极、环状辅助铂电极和固态工作电极。氧化锆固体电解质管的开口端端口装有氧化铝塞，氧化锆固体电解质管封闭端的外表面由下到上依次设有环状辅助铂电极和环状参比铂电极，环状参比铂电极紧邻环状辅助铂电极上边界位置；环状参比铂电极引线的一端与环状参比铂电极固定连接，环状辅助铂电极引线的一端与环状辅助铂电极固定连接。 In order to achieve the above purpose, the technical solution adopted by the utility model is: the test device includes a zirconia solid electrolyte tube, a ring-shaped reference platinum electrode, a ring-shaped auxiliary platinum electrode and a solid-state working electrode. The open end of the zirconia solid electrolyte tube is equipped with an alumina plug, and the outer surface of the closed end of the zirconia solid electrolyte tube is provided with a ring-shaped auxiliary platinum electrode and a ring-shaped reference platinum electrode from bottom to top. Close to the upper boundary of the ring-shaped auxiliary platinum electrode; one end of the ring-shaped reference platinum electrode lead is fixedly connected to the ring-shaped reference platinum electrode, and one end of the ring-shaped auxiliary platinum electrode lead is fixedly connected to the ring-shaped auxiliary platinum electrode.
进气通管的下半部通过氧化铝塞的中心孔插入氧化锆固体电解质管内，氧化铝塞的中心孔旁设有排气孔，进气通管的上端口通过橡胶管与T型三通管的下端口密封连接；T型三通管上端端口设有橡胶塞，T型三通管的旁端口为惰性气体进气口。 The lower half of the air intake pipe is inserted into the zirconia solid electrolyte tube through the central hole of the alumina plug. There is an exhaust hole next to the central hole of the alumina plug. The upper port of the air intake pipe is connected to the T-shaped tee through a rubber tube. The lower port of the pipe is sealed and connected; the upper port of the T-shaped three-way pipe is provided with a rubber plug, and the side port of the T-shaped three-way pipe is an inert gas inlet.
绝缘管的上端从橡胶塞的中心孔伸出，绝缘管的下端从进气通管的下端口穿出至氧化锆固体电解质管内；绝缘管的下端固定有固态工作电极，固态工作电极引线的下端穿过绝缘管的中心通孔与固态工作电极的上端连接，固态工作电极引线的上端伸出绝缘管上端口。 The upper end of the insulating tube protrudes from the center hole of the rubber plug, and the lower end of the insulating tube passes through the lower port of the air intake tube into the zirconia solid electrolyte tube; the lower end of the insulating tube is fixed with a solid-state working electrode, and the lower end of the solid-state working electrode lead wire The central through hole passing through the insulating tube is connected to the upper end of the solid-state working electrode, and the upper end of the lead wire of the solid-state working electrode protrudes from the upper port of the insulating tube.
所述的氧化锆固体电解质管的内径为5~20mm，壁厚为0.5~3mm。 The inner diameter of the zirconia solid electrolyte tube is 5-20 mm, and the wall thickness is 0.5-3 mm.
所述的环状辅助铂电极和环状参比铂电极的层厚均为4~50μm，孔隙度均为15~40%。 The thickness of the annular auxiliary platinum electrode and the annular reference platinum electrode are both 4-50 μm, and the porosity is 15-40%.
所述固态工作电极的直径为0.2 ~3mm。 The diameter of the solid working electrode is 0.2 ~ 3mm.
由于采用上述技术方案，本实用新型具有如下积极效果： Owing to adopting above-mentioned technical scheme, the utility model has following positive effect:
1) 本实用新型结构简单、操作容易。氧化锆固体电解质管一方面可作为将环状辅助铂电极和环状参比铂电极与测试装置容器集成在一起的基体材料，另一方面又作为将环状辅助铂电极与熔融电解质中的固态工作电极分开的隔离膜，不仅能有效避免环状辅助铂电极与固态工作电极之间可能产生的电子直接短路，而且能防止环状辅助铂电极上的反应参与物对固态工作电极的不利影响。可见，氧化锆固体电解质管的采用，不仅使测试装置的结构简单，且使测试装置操作也因而更为容易。 1) The utility model has simple structure and easy operation. On the one hand, the zirconia solid electrolyte tube can be used as the base material for integrating the ring-shaped auxiliary platinum electrode and the ring-shaped reference platinum electrode with the container of the test device, and on the other hand, as a solid The separating membrane of the working electrode can not only effectively avoid the direct short circuit of electrons that may be generated between the annular auxiliary platinum electrode and the solid-state working electrode, but also prevent the adverse effects of the reaction participants on the annular auxiliary platinum electrode on the solid-state working electrode. It can be seen that the adoption of the zirconia solid electrolyte tube not only makes the structure of the test device simple, but also makes the operation of the test device easier.
2) 本实用新型抗干扰能力强。氧化锆固体电解质管只对氧离子具有选择透过性，能阻塞电子和其它非氧离子通过，消除漏电电流或熔融电解质中其它非氧离子的干扰。 2) The utility model has strong anti-interference ability. The zirconia solid electrolyte tube has selective permeability only for oxygen ions, which can block the passage of electrons and other non-oxygen ions, and eliminate the interference of leakage current or other non-oxygen ions in the molten electrolyte.
3) 本实用新型的电极制备方便、性能稳定可靠。在氧化锆固体电解质管封闭端的外表面设有性能稳定的多孔环状参比铂电极和环状辅助铂电极。环状辅助铂电极的面积能方便实现远大于固态工作电极面积的要求，降低电化学研究时环状辅助铂电极的极化程度。氧化锆固体电解质管外表面上的环状参比铂电极和环状辅助铂电极能方便地实现彼此分离，避免测试装置中流过的电流造成电压降以及氧化锆固体电解质管外环状辅助铂电极的局部氧分压的变化对环状参比铂电极性能的影响；另外，氧化锆固体电解质管的外表面的环状参比铂电极紧邻环状辅助铂电极的上方位置，能避免熔融电解质对环状参比铂电极所覆盖的氧化锆固体电解质管基体内面的直接侵蚀。因此，相对于两电极体系的测试装置，本实用新型中的与环状辅助铂电极分离的环状参比铂电极更有利提高电活性离子电化学行为测试结果的稳定性、抗干扰和可靠性。 3) The electrode of the utility model is easy to prepare and has stable and reliable performance. A porous ring-shaped reference platinum electrode and a ring-shaped auxiliary platinum electrode with stable performance are arranged on the outer surface of the closed end of the zirconia solid electrolyte tube. The area of the ring-shaped auxiliary platinum electrode can easily meet the requirement of being much larger than the area of the solid-state working electrode, reducing the degree of polarization of the ring-shaped auxiliary platinum electrode during electrochemical research. The ring-shaped reference platinum electrode and the ring-shaped auxiliary platinum electrode on the outer surface of the zirconia solid electrolyte tube can be easily separated from each other to avoid the voltage drop caused by the current flowing in the test device and the ring-shaped auxiliary platinum electrode on the outer surface of the zirconia solid electrolyte tube. The influence of the change of local oxygen partial pressure on the performance of the ring-shaped reference platinum electrode; in addition, the ring-shaped reference platinum electrode on the outer surface of the zirconia solid electrolyte tube is close to the upper position of the ring-shaped auxiliary platinum electrode, which can avoid the impact of the molten electrolyte on Direct erosion inside the matrix of a zirconia solid electrolyte tube covered by a ring-shaped reference platinum electrode. Therefore, compared with the test device of the two-electrode system, the ring-shaped reference platinum electrode separated from the ring-shaped auxiliary platinum electrode in the utility model is more beneficial to improve the stability, anti-interference and reliability of the test results of the electrochemical behavior of electroactive ions .
因此，本实用新型具有结构简单、操作容易、抗干扰能力强和测试结果更稳定可靠的特点。 Therefore, the utility model has the characteristics of simple structure, easy operation, strong anti-interference ability and more stable and reliable test results.
附图说明 Description of drawings
图1是本实用新型的一种结构示意图。 Fig. 1 is a kind of structural representation of the utility model.
具体实施方式 Detailed ways
下面结合附图和具体实施方式对本实用新型作进一步的描述，并非对其保护范围的限制。 The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, which is not intended to limit its protection scope.
实施例1Example 1
一种用于熔融电解质中电活性氧化物电化学行为的测试装置。如图1所示，所述测试装置包括氧化锆固体电解质管3、环状参比铂电极15、环状辅助铂电极1和固态工作电极2。氧化锆固体电解质管3的开口端端口装有氧化铝塞5，氧化锆固体电解质管3封闭端的外表面由下到上依次设有环状辅助铂电极1和环状参比铂电极15，环状参比铂电极15紧邻环状辅助铂电极1上边界位置；环状参比铂电极引线4的一端与环状参比铂电极15固定连接，环状辅助铂电极引线7的一端与环状辅助铂电极1固定连接。 A test setup for the electrochemical behavior of electroactive oxides in molten electrolytes. As shown in FIG. 1 , the test device includes a zirconia solid electrolyte tube 3 , a ring-shaped reference platinum electrode 15 , a ring-shaped auxiliary platinum electrode 1 and a solid-state working electrode 2 . The open end port of the zirconia solid electrolyte tube 3 is equipped with an alumina plug 5, and the outer surface of the closed end of the zirconia solid electrolyte tube 3 is provided with a ring-shaped auxiliary platinum electrode 1 and a ring-shaped reference platinum electrode 15 sequentially from bottom to top. The ring-shaped reference platinum electrode 15 is close to the upper boundary position of the ring-shaped auxiliary platinum electrode 1; one end of the ring-shaped reference platinum electrode lead 4 is fixedly connected to the ring-shaped reference platinum electrode 15, and one end of the ring-shaped auxiliary platinum electrode lead 7 is connected to the ring-shaped auxiliary platinum electrode. The auxiliary platinum electrode 1 is fixedly connected.
进气通管13的下半部通过氧化铝塞5的中心孔插入氧化锆固体电解质管3内，氧化铝塞5的中心孔旁设有排气孔12，进气通管13的上端口通过橡胶管6与T型三通管10的下端口密封连接；T型三通管10上端端口设有橡胶塞9，T型三通管10的旁端口为惰性气体进气口11。 The lower half of the air intake pipe 13 is inserted into the zirconia solid electrolyte tube 3 through the central hole of the alumina plug 5, and the central hole of the alumina plug 5 is provided with an exhaust hole 12, and the upper port of the air intake pipe 13 passes through the The rubber tube 6 is sealed and connected with the lower port of the T-shaped three-way pipe 10;
绝缘管14的上端从橡胶塞9的中心孔伸出，绝缘管14的下端从进气通管13的下端口穿出至氧化锆固体电解质管3内；绝缘管14的下端固定有固态工作电极2，固态工作电极引线8的下端穿过绝缘管14的中心通孔与固态工作电极2的上端连接，固态工作电极引线8的上端伸出绝缘管14上端口。 The upper end of the insulating tube 14 protrudes from the central hole of the rubber plug 9, and the lower end of the insulating tube 14 passes through the lower port of the air intake tube 13 into the zirconia solid electrolyte tube 3; the lower end of the insulating tube 14 is fixed with a solid-state working electrode 2. The lower end of the lead wire 8 of the solid-state working electrode is connected to the upper end of the solid-state working electrode 2 through the central through hole of the insulating tube 14 , and the upper end of the lead wire 8 of the solid-state working electrode extends out of the upper port of the insulating tube 14 .
所述的氧化锆固体电解质管3的内径为5~10mm，壁厚为0.5~1.5mm。 The inner diameter of the zirconia solid electrolyte tube 3 is 5-10 mm, and the wall thickness is 0.5-1.5 mm.
所述的环状辅助铂电极1和环状参比铂电极15的层厚均为4~20μm，孔隙度均为15~25%。 The thickness of the annular auxiliary platinum electrode 1 and the annular reference platinum electrode 15 are both 4-20 μm, and the porosity is 15-25%.
所述的固态工作电极2的直径为2~3mm。 The diameter of the solid working electrode 2 is 2-3mm.
实施例2Example 2
一种用于熔融电解质中电活性氧化物电化学行为的测试装置。除下述技术参数外，其余同实施例1： A test setup for the electrochemical behavior of electroactive oxides in molten electrolytes. Except following technical parameter, all the other are with embodiment 1:
所述氧化锆固体电解质管3的内径为10~15mm，壁厚为1.5~2.5mm。 The inner diameter of the zirconia solid electrolyte tube 3 is 10-15 mm, and the wall thickness is 1.5-2.5 mm.
所述的环状辅助铂电极1和环状参比铂电极15的层厚均为20~35μm，孔隙度均为25~35%。 The thickness of the annular auxiliary platinum electrode 1 and the annular reference platinum electrode 15 are both 20-35 μm, and the porosity is 25-35%.
所述的固态工作电极2的直径为1~2mm。 The diameter of the solid working electrode 2 is 1-2mm.
实施例3Example 3
一种用于熔融电解质中电活性氧化物电化学行为的测试装置。除下述技术参数外，其余同实施例1： A test setup for the electrochemical behavior of electroactive oxides in molten electrolytes. Except following technical parameter, all the other are with embodiment 1:
所述氧化锆固体电解质管3的内径为15~20mm，壁厚为2~3mm。 The inner diameter of the zirconia solid electrolyte tube 3 is 15-20 mm, and the wall thickness is 2-3 mm.
所述的环状辅助铂电极1和环状参比铂电极15的层厚均为35~50μm，孔隙度均为30~40%。 The thickness of the annular auxiliary platinum electrode 1 and the annular reference platinum electrode 15 are both 35-50 μm, and the porosity is 30-40%.
所述的固态工作电极2的直径为0.2 ~1.2mm。 The diameter of the solid working electrode 2 is 0.2 ~ 1.2mm.
本具体实施方式具有如下积极效果： This embodiment has the following positive effects:
1) 本具体实施方式结构简单、操作容易。氧化锆固体电解质管3一方面可作为将环状辅助铂电极1和环状参比铂电极15与测试装置容器集成在一起的基体材料，另一方面又作为将环状辅助铂电极1与熔融电解质中的固态工作电极2分开的隔离膜，不仅能有效避免环状辅助铂电极1与固态工作电极2之间可能产生的电子直接短路，而且能防止环状辅助铂电极1上的反应参与物对固态工作电极2的不利影响。可见，氧化锆固体电解质管3的采用，不仅使测试装置的结构简单，且使测试装置操作也因而更为容易。 1) This embodiment has simple structure and easy operation. On the one hand, the zirconia solid electrolyte tube 3 can be used as the matrix material for integrating the ring-shaped auxiliary platinum electrode 1 and the ring-shaped reference platinum electrode 15 with the container of the test device, and on the other hand, it can be used as the base material for integrating the ring-shaped auxiliary platinum electrode 1 and the molten The separator separated from the solid-state working electrode 2 in the electrolyte can not only effectively avoid the direct short circuit of electrons that may be generated between the ring-shaped auxiliary platinum electrode 1 and the solid-state working electrode 2, but also prevent the reaction participants on the ring-shaped auxiliary platinum electrode 1 from Adverse effects on the solid working electrode 2. It can be seen that the adoption of the zirconia solid electrolyte tube 3 not only makes the structure of the test device simple, but also makes the operation of the test device easier.
2) 本具体实施方式抗干扰能力强。氧化锆固体电解质管3只对氧离子具有选择透过性，能阻塞电子和其它非氧离子通过，消除漏电电流或熔融电解质中其它非氧离子的干扰。 2) This specific implementation mode has strong anti-interference ability. The zirconia solid electrolyte tube 3 has selective permeability only for oxygen ions, which can block the passage of electrons and other non-oxygen ions, and eliminate the interference of leakage current or other non-oxygen ions in the molten electrolyte.
3)本具体实施方式的电极制备方便、性能稳定可靠。在氧化锆固体电解质管3封闭端的外表面设有性能稳定的多孔环状参比铂电极15和环状辅助铂电极1。环状辅助铂电极1的面积能方便实现远大于固态工作电极2面积的要求，降低电化学研究时环状辅助铂电极1的极化程度。氧化锆固体电解质管外表面上的环状参比铂电极15和环状辅助铂电极1能方便地实现彼此分离，避免测试装置中流过的电流造成电压降以及氧化锆固体电解质管3外环状辅助铂电极1的局部氧分压的变化对环状参比铂电极15性能的影响；另外，氧化锆固体电解质管3的外表面的环状参比铂电极15紧邻环状辅助铂电极1的上方位置，可以避免熔融电解质对环状参比铂电极15所覆盖的氧化锆固体电解质管3基体内面的直接侵蚀。因此，相对于两电极体系的测试装置，本具体实施方式中的与环状辅助铂电极1分离的环状参比铂电极15更有利提高电活性离子电化学行为的测试结果的稳定性和可靠性。 3) The electrode of this specific embodiment is easy to prepare, and has stable and reliable performance. A porous ring-shaped reference platinum electrode 15 and a ring-shaped auxiliary platinum electrode 1 with stable performance are arranged on the outer surface of the closed end of the zirconia solid electrolyte tube 3 . The area of the ring-shaped auxiliary platinum electrode 1 can easily meet the requirement of being much larger than the area of the solid-state working electrode 2, and reduce the degree of polarization of the ring-shaped auxiliary platinum electrode 1 during electrochemical research. The ring-shaped reference platinum electrode 15 and the ring-shaped auxiliary platinum electrode 1 on the outer surface of the zirconia solid electrolyte tube can be easily separated from each other, avoiding the voltage drop caused by the current flowing in the test device and the outer ring shape of the zirconia solid electrolyte tube 3. The influence of the change of the partial oxygen partial pressure of the auxiliary platinum electrode 1 on the performance of the ring-shaped reference platinum electrode 15; The upper position can avoid direct erosion of the molten electrolyte on the inner surface of the zirconia solid electrolyte tube 3 matrix covered by the ring-shaped reference platinum electrode 15 . Therefore, compared with the test device of the two-electrode system, the ring-shaped reference platinum electrode 15 separated from the ring-shaped auxiliary platinum electrode 1 in this specific embodiment is more beneficial to improve the stability and reliability of the test results of the electrochemical behavior of electroactive ions. sex.
因此，本具体实施方式具有结构简单、操作容易、抗干扰能力强和测试结果稳定可靠的特点。 Therefore, this embodiment has the characteristics of simple structure, easy operation, strong anti-interference ability and stable and reliable test results.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103884752A (en) * | 2014-04-17 | 2014-06-25 | 武汉科技大学 | Electrolytic tank for researching electrochemical behavior of electroactive oxide in fused electrolyte |
| CN110752399A (en) * | 2019-08-14 | 2020-02-04 | 华南理工大学 | Tube type direct carbon solid oxide fuel battery pack with reusable row structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103884752A (en) * | 2014-04-17 | 2014-06-25 | 武汉科技大学 | Electrolytic tank for researching electrochemical behavior of electroactive oxide in fused electrolyte |
| CN103884752B (en) * | 2014-04-17 | 2016-05-25 | 武汉科技大学 | For studying the electrolytic cell of the electroactive oxide electrochemical behavior of fused electrolyte |
| CN110752399A (en) * | 2019-08-14 | 2020-02-04 | 华南理工大学 | Tube type direct carbon solid oxide fuel battery pack with reusable row structure |
| CN110752399B (en) * | 2019-08-14 | 2020-12-22 | 华南理工大学 | Reusable Tubular Direct Carbon Solid Oxide Fuel Cell Stack |
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