Author
Ning Li
Bio: Ning Li is an academic researcher from China Three Gorges University. The author has contributed to research in topics: Reduction (mathematics) & Viscosity. The author has an hindex of 2, co-authored 2 publications receiving 64 citations.
Topics: Reduction (mathematics), Viscosity, Radical, Catalysis, Chemistry
Papers
More filters
TL;DR: In this paper, the most significant developments in fluorescent probes for the detection of the carbonyl species formaldehyde, carbon monoxide and phosgene in recent years, with a special emphasis on their mechanisms and applications.
133 citations
9 citations
2 citations
TL;DR: In this paper , a series of organic sulfonate inner salts, viz., aprotic imidazolium- and pyridinium-based zwitterions bearing sulfonates groups (−SO3−), were synthesized for the catalytic conversion of fructose-based carbohydrates into 5-hydroxymethylfurfural (HMF).
Abstract: A series of organic sulfonate inner salts, viz., aprotic imidazolium- and pyridinium-based zwitterions bearing sulfonate groups (−SO3–), were synthesized for the catalytic conversion of fructose-based carbohydrates into 5-hydroxymethylfurfural (HMF). The dramatic cooperation of both the cation and anion of inner salts played a crucial role in the HMF formation. The inner salts have excellent solvent compatibility, and 4-(pyridinium)butane sulfonate (PyBS) affords the highest catalytic activity with 88.2 and 95.1% HMF yields at almost full conversion of fructose in low-boiling-point protic solvent isopropanol (i-PrOH) and aprotic solvent dimethyl sulfoxide (DMSO), respectively. The substrate tolerance of aprotic inner salt was also studied through changing the substrate type, demonstrating its excellent specificity for catalytic valorization of fructose-moiety-containing C6 sugars, such as sucrose and inulin. Meanwhile, the neutral inner salt is structurally stable and reusable; after being recycled four times, the catalyst showed no appreciable loss of its catalytic activity. The plausible mechanism has been elucidated based on the dramatic cooperative effect of both the cation and sulfonate anion of inner salts. The noncorrosive, nonvolatile, and generally nonhazardous aprotic inner salt used in this study will benefit many biochemical-related applications.
Cited by
More filters
TL;DR: In this paper, the most significant developments in fluorescent probes for the detection of the carbonyl species formaldehyde, carbon monoxide and phosgene in recent years, with a special emphasis on their mechanisms and applications.
133 citations
TL;DR: A review of existing design strategies for developing fluorescent sensors for hydrazine detection can be found in this article, where the molecular structures, sensing mechanisms and applications of these sensors were emphatically classified and discussed.
87 citations
TL;DR: A review of the use of organic fluorescent probes for food and drinking water safety testing can be found in this paper, where the authors discuss the need for fast, simple, selective, and cheap food safety testing methods.
77 citations
TL;DR: In this paper, a new cascade reaction-based colorimetric and fluorescence "turn on" dual-function probe (HBTM-HC) was proposed for selective detection of cyanide and hydrazine (N2H4).
62 citations
TL;DR: In this article, a correlation has been established between the different synthetic strategies and catalytic activities, and the correlation has also been established that the different strategies have different catalytic activity.
Abstract: Earth-abundant nanocatalysts are actively searched to replace expensive noble metal catalysts for a number of essential processes. Here, Cu catalysts have been designed based on manganese oxide octahedral molecular sieve (OMS-2) supports to optimize the catalytic activity in nitrophenol reduction, CuAAC click reaction and terminal alkyne homocoupling. A correlation has been established between the different synthetic strategies and catalytic activities. CuOx/OMS-2 has also been found an efficient catalyst for the homocoupling of terminal alkynes, click reaction and the reduction of 4-nitrophenol, 2,4-dinitrophenol and 4-nitrobenzene diazo tetrafluoroborate with high activity, whereas Cu-OMS-2 only shows poor catalytic activity for reduction and click reaction, and no catalytic activity for homocoupling.
52 citations