2021
DOI: 10.26434/chemrxiv.14291644.v2
|View full text |Cite
Preprint
|
Sign up to set email alerts
|

How Reproducible Are Surface Areas Calculated from the BET Equation?

Abstract: Porosity and surface area analysis play a prominent role in modern materials science, where 123 their determination spans the fields of natural sciences, engineering, geology and medical 124 research. At the heart of this sits the Brunauer-Emmett-Teller (BET) theory,[1] which has been 125 a remarkably successful contribution to the field of materials science. The BET method was 126 developed in the 1930s and is now the most widely used metric for the estimation of surface 127 areas of porous materials.[2] Sinc… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

0
6
0

Year Published

2021
2021
2022
2022

Publication Types

Select...
6
2

Relationship

5
3

Authors

Journals

citations
Cited by 9 publications
(6 citation statements)
references
References 26 publications
0
6
0
Order By: Relevance
“…In another case, the experimental value of 0.978 cm 3 g –1 slightly exceeds the geometric pore volume of CuBTC, and the manuscript also reports a very high BET surface area of 2327 m 2 g –1 , the largest ever reported to our knowledge . While we are not able to determine in retrospect what led to this large valuefor example, the calibration of the instrument, a material with large defects, or an imprecise BET calculationour analysis points at potential benefits from checking the geometric pore volume of the sample before moving on to measure the adsorption of other gases.…”
Section: Resultsmentioning
confidence: 99%
“…In another case, the experimental value of 0.978 cm 3 g –1 slightly exceeds the geometric pore volume of CuBTC, and the manuscript also reports a very high BET surface area of 2327 m 2 g –1 , the largest ever reported to our knowledge . While we are not able to determine in retrospect what led to this large valuefor example, the calibration of the instrument, a material with large defects, or an imprecise BET calculationour analysis points at potential benefits from checking the geometric pore volume of the sample before moving on to measure the adsorption of other gases.…”
Section: Resultsmentioning
confidence: 99%
“…We next conducted N 2 adsorption experiments at 77 K to investigate the potential impact of incorporating mPEG–PO 3 into the internal porosity of PCN-222. As shown in Figure c, PCN-222 and PCN-222@PEG–PO 3 adsorb 526 and 129 cm 3 g –1 N 2 at P / P 0 = 0.8, respectively, with Brunauer–Emmett–Teller (BET) areas, analyzed using BETSI, decreasing from 1151 to 265 m 2 g –1 (see Supporting Information, Section S4). However, the pure mPEG–PO 3 adsorbs a nearly negligible amount of N 2 (Figure S33).…”
Section: Introductionmentioning
confidence: 96%
“…58 In another case, the experimental value of 0.978 cm 3 g −1 slightly exceeds the geometric pore volume of CuBTC, and the manuscript also reports a very high BET surface area of 2327 m 2 g −1 , the largest ever reported to our knowledge. 59 While we are not able to determine in retrospect what led to this large value -for example, the calibration of the instrument, a material with large defects, or an imprecise BET calculation 60 -our analysis points at potential benefits from checking the geometric pore volume of the sample before moving on to measure the adsorption of other gases.…”
Section: Systemmentioning
confidence: 95%