AI Article Synopsis
- The renewable process of using photo-/electrocatalysis to convert CO and nitrate into urea faces challenges due to low urea yields and difficulties in accurately measuring urea concentrations.
- The traditional detection method for urea, DAMO-TSC, is limited by its sensitivity to nitric oxide (NO) in solutions, which affects its accuracy and range of use.
- A modified version of the DAMO-TSC method was developed that reduces the interference from NO, allowing for precise urea quantification, maintaining an error margin of just 3% across various NO concentrations.
Article Abstract
Renewable photo-/electrocatalytic coreduction of CO and nitrate to urea is a promising method for high-value utilization of CO . However, because of the low yields of the urea synthesis by photo-/electrocatalysis process, the accurate quantification of low concentration urea is challenging. The traditional diacetylmonoxime-thiosemicarbazide (DAMO-TSC) method for urea detection has a high limit of quantification and accuracy, but it is easily affected by NO in the solution, which limits its application scope. Thus, the DAMO-TSC method urgently requires a more rigorous design to eliminate the effects of NO and accurately quantify urea in nitrate systems. Herein, a modified DAMO-TSC method is reported, which consumes NO in solution through a nitrogen release reaction; hence, the remaining products do not affect the accuracy of urea detection. The results of detecting urea solutions with different NO concentrations (within 30 ppm) show that the improved method can effectively control the error of urea detection within 3%.
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| http://dx.doi.org/10.1002/smtd.202300003 | DOI Listing |
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Article Synopsis
- The renewable process of using photo-/electrocatalysis to convert CO and nitrate into urea faces challenges due to low urea yields and difficulties in accurately measuring urea concentrations.
- The traditional detection method for urea, DAMO-TSC, is limited by its sensitivity to nitric oxide (NO) in solutions, which affects its accuracy and range of use.
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