Ammonia Detection Methods in Photocatalytic and Electrocatalytic Experiments: How to Improve the Reliability of NH 3 Production Rates?
Year: 2019
Type: article
Abstract: The enzyme nitrogenase inspires the development of novel photocatalytic and electrocatalytic systems that can drive nitrogen reduction with water under similar low‐temperature and low‐pressure conditions. While photocatalytic and electrocatalytic N 2 fixation are emerging as hot new areas of fundamental and applied research, serious concerns exist regarding the accuracy of current methods used for ammonia detection and quantification. In most studies, the ammonia yields are low and little consideration is given to the effect of interferants on NH 3 quantification. As a result, NH 3 yields reported in many works may be exaggerated and erroneous. Herein, the advantages and limitations of the various methods commonly used for NH 3 quantification in solution (Nessler's reagent method, indophenol blue method, and ion chromatography method) are systematically explored, placing particular emphasis on the effect of interferants on each quantification method. Based on the data presented, guidelines are suggested for responsible quantification of ammonia in photocatalysis and electrocatalysis.
Source: Advanced Science
Language: English
Subfield: Catalysis
Field: Chemical Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $5,000
Funders: Energy Education Trust of New Zealand, Royal Society, National Natural Science Foundation of China, Chinese Academy of Sciences, Youth Innovation Promotion Association of the Chinese Academy of Sciences, Natural Science Foundation of Beijing Municipality, Beijing Municipal Science and Technology Commission, K. C. Wong Education Foundation, Youth Innovation Promotion Association
Awards: G1387575516, G158535275, G1769613228, G1855182715, G1888934352, G2302944963, G245506022, G31321589, 可见光响应氮掺杂钽基纳米半导体光催化剂的可控制备及光解水制氢性能研究, G3679280205, G4233023175, G4441904240, G4645741688, G4724117470, G5019351399, G5194547017, G7677283436, 光催化合成氨水滑石基纳米催化材料的理性设计与性能调控, 基于分子和纳米层次的掺杂型有序介孔碳基氧还原催化剂的设计合成, G875528839
OpenAlex ID: W2914840694