Mixed Dissociative and Molecular Water Adsorption on Anatase TiO2(101)
The Journal of Physical Chemistry C2011Vol. 115(19), pp. 9545–9550
Citations Over TimeTop 12% of 2011 papers
Abstract
The adsorption properties of water on the stoichiometric (101) surface of anatase TiO2 in the temperature range 160-400 K has been studied by synchrotron radiation core level photoelectron spectroscopy. O 1s spectra give clear evidence for the formation of a first layer of water that comprises both H2O and OH. The composition is 0.77 +/- 0.05 ML H2O and 0.47 +/- 0.05 ML OH. Decreasing the coverage by heating leads to a decreased H2O/OH ratio. The results are very similar to those recently reported for water on rutile TiO2(110) and show that the previously proposed model of molecular adsorption only on anatase TiO2(101) must be revised.
Related Papers
- → The role of the surface intermediates in the photoelectrochemical behaviour of anatase and rutile TiO2(1993)240 cited
- → Photodegradation of organic dyes based on anatase and rutile TiO2nanoparticles(2015)150 cited
- → Electrostatic potential calculations on crystalline TiO2: The surface reducibility of rutile and anatase(1983)33 cited
- → Infrared– active defects in a TiO2 mixture of coexisting anatase and rutile phases(2003)19 cited
- → 주형합성을 통한 메조포러스 TiO 2 제조 및 실리카 메조포어 내부에서의 TiO 2 상전이 거동 변화(2018)