Ứng dụng
- AN-BAT-003Kỹ thuật chuẩn độ gián đoạn dòng điện (GITT)
Ghi chú ứng dụng này cho thấy cách sử dụng AUTOLAB và NOVA để thực hiện các thử nghiệm GITT trên pin Li-ion. Ở đây, các xung điện tích tĩnh điện được áp dụng, mỗi xung theo sau là thời gian thư giãn, cho đến khi đạt đến giới hạn điện thế trên. Sau đó, các xung xả được áp dụng, theo sau là thời gian cân bằng, cho đến khi đạt đến giới hạn điện thế dưới. Từ biểu đồ điện thế so với thời gian, có thể thu được thông tin quan trọng để tính toán hệ số khuếch tán và các đại lượng tham số nhiệt động lực học.
- AN-BAT-016EIS ở các trạng thái sạc khác nhau với INTELLO
Ứng dụng này cho thấy cách EIS, kết hợp với INTELLO và NOVA, theo dõi sự thay đổi của điện trở bên trong pin ở các mức SOC để nghiên cứu hiệu suất và cơ chế lão hóa.
- AN-CIC-031Sulfur determination in ammonia gas applying Combustion IC
Sulfur species are critical contaminants in ammonia gas. They can cause high-temperature sulfidation of metals, form aggressive complexes with other elements, or react subsequently in processes where the ammonia gas is used. The concentration of such impurities tends to be very low, but they may not exceed critical levels of 0.5 mg/L. Although this level is very close to the system blank of the Combustion IC system, the setup can be used to prove that such critical limits are not exceeded.
- AN-EC-014Oxygen Reduction Reaction with the Rotating Ring Disk Electrode
The oxygen reduction reaction (ORR) is important to the functional readiness of a fuel cell. Rotating ring disk electrode (RRDE) experiments allow the reaction to be studied in hydrodynamic conditions to determine kinetic properties via the Levich and Koutecký-Levich equations. Mechanistic information is simultaneously obtained from the reaction of intermediates at the secondary (ring) electrode. This application note describes how the RRDE from Metrohm Autolab can be used to study the ORR.
- AN-EC-023Determination of the T-dependent conductivity of a solid proton conductor
The proton conductivity of membranes made of a proton conductive material is an essential quantity to be determined. In this application note, we present the results of an exemplary study of σDC(T) determined by impedance spectroscopy for a novel solid proton conductor in its dry state.
- AN-EC-037Differential electrochemical mass spectrometry
Differential electrochemical mass spectrometry (DEMS) is used to monitor gaseous and volatile species during electrochemical reactions in situ.
- AN-FC-001Fuel cells part 1 – what is a fuel cell?
A fuel cell is an electrochemical energy conversion device that produces electricity and heat by electrochemically combining a fuel (typically hydrogen) and an oxidant (typically oxygen). The higher efficiency also results in much lower carbon dioxide emissions and negligible amounts of SOx and NOx (when reformed fuel is used) compared with fossil fuel-based technologies for the same power output.
- AN-FC-002Fuel cells part 2 – types of fuel cells
To overcome the various technical problems, many different fuel cell types have been developed. In this Application Note, proton exchange membrane, direct methanol and solid oxide fuel cells are discussed in more detail.
- AN-FC-003Fuel cells part 3 – characterization using EIS
In this Application Note the use of Electrochemical Impedance Spectroscopy (EIS) for the characterisation of PEM fuel will be demonstrated. It will be shown that EIS is a powerful diagnostic tool for the determination of the following factors that can influence the performance of a PEM fuel cell.
- AN-FC-004Impedance Measurements on Fuel Cells and Fuel Cell Stacks at High Currents: Part 1 – Autolab in combination with an electronic load
In this application note, a combination of PGSTAT and electronic load is use to perform electrochemical impedance spectroscopy in a fuel cell operating at high currents.
- AN-FC-005Impedance measurements on fuel cells and fuel cell stacks at high currents: Part 2 – Autolab in combination with an electronic load
The use of impedance measurements on fuel cells under load makes it possible to study the influence of the different fuel cell elements on the behavior and (if detectable) on the ageing of the fuel cell. To perform high current density measurements, the Autolab systems can be connected to a third party electronic load. This extends the measurable range of the instrument by several current decades.
- AN-FC-006i/V characterization of a fuel cell stack, DC measurements at high current densities
The operational behavior of a fuel cell stack is usually evaluated by determining the polarization and power density curves of the cell. These curves provide a quick characterization of the stack performance and an assessment of its optimal operating conditions (temperature, humidity, electrocatalyst, ion-exchange membrane).
- WP-079How to characterize a catalyst? Cyclic voltammetry in action
This White Paper introduces the principles of cyclic voltammetry (CV) and the various ways it can be used for catalyst investigation. A case study and helpful glossary are provided to support your understanding.
- WP-095The future of manufacturing and commercializing green ammonia with electrochemistry
Free White Paper outlines the fundamental principles of the nitrogen reduction reaction. It then delves into the technical barriers hindering the industrialization of green ammonia production, their impact on final yield and selectivity, and potential strategies or research gaps to overcome these issues.
- WP-097Tại sao chuyển sang OMNIS Client/Server (C/S)?
OMNIS Client/Server nâng cao hiệu suất kinh doanh nhờ khả năng quản lý máy chủ linh hoạt, giúp cắt giảm chi phí thông qua giảm phần cứng, tiêu thụ năng lượng và bảo trì tại nhiều địa điểm.
