Niobium oxophosphate acid catalyst (NbP) has great success in aqueous heterogeneous catalysis, in particular for car- bohydrate biomass valorization, thanks to the water-tolerant acid properties of the LA (Lewis) and BA (Brønsted) sites. Attempts to tailor the acid properties of NbP by chemical treatment or dilution in inert matrix to disperse active NbP phase have been recently proposed in the literature (Carniti et al., Appl Catal B 193:93–102, 2016; Aronne et al., J Phys Chem C 121:17378–17389, 2017). The obtained samples have been used with success in the hydrolysis reaction of inulin to fructose and in hydrolysis plus dehydration of cellobiose to HMF. The samples have been further studied with calorimetric acid- titration measurements using 2-phenylethylamine (PEA) basic probe in various liquids (cyclohexane, water, isopropanol, and water-isopropanol mixtures) to study their intrinsic and effective acid strength. A rational revisiting of the surface acid properties of NbP and modified samples, that wants to take into account the acid-sites density and strength and the LAS to BAS ratios measured under different liquid environments in relation with their catalytic activity, is presented. Keywords Niobium oxophosphate catalyst · Solid acid catalysts · Catalytic biomass conversion · Acid surface characterization · Calorimetric titration 1 Introduction a typical property that solid
Topics in Catalysis – Springer Journals
Published: Jun 4, 2018
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera