A Scalable Solution Route to Porous Networks of Nanostructured Black Tungsten

Doddapaneni, V. Vinay K.; Lee, Kijoon; Colbert, Tyler T.; Mirzababaei, Saereh; Paul, Brian K.; Pasebani, Somayeh; Chang, Chih-Hung

doi:10.3390/nano11092304

Open AccessArticle

A Scalable Solution Route to Porous Networks of Nanostructured Black Tungsten

by

V. Vinay K. Doddapaneni

¹

,

Kijoon Lee

^2,3,

Tyler T. Colbert

¹,

Saereh Mirzababaei

^2,3

,

Brian K. Paul

^2,3,

Somayeh Pasebani

^2,3

and

Chih-Hung Chang

^1,*

¹

School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, OR 97331, USA

²

School of Mechanical, Industrial and Manufacturing Engineering, Oregon State University, Corvallis, OR 97331, USA

³

Advanced Technology and Manufacturing Institute (ATAMI), Corvallis, OR 97330, USA

^*

Author to whom correspondence should be addressed.

Nanomaterials 2021, 11(9), 2304; https://doi.org/10.3390/nano11092304

Submission received: 18 August 2021 / Revised: 29 August 2021 / Accepted: 31 August 2021 / Published: 5 September 2021

(This article belongs to the Special Issue Scalable Fabrication of Nanostructured Materials and Devices)

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Abstract

This paper studied the feasibility of a new solution-processed method to manufacture black tungsten nanostructures by laser conversion of tungsten hexacarbonyl precursor on the Inconel 625 substrate under argon atmosphere at ambient pressure. The results show that sublimation of the precursor can be prevented if the decomposition temperature (>170 °C) is achieved using the laser heating method. Three different laser powers from 60–400 W were used to investigate the role of laser parameters on the conversion. It was found that lower laser power of 60 W resulted in a mixture of unconverted precursor and converted tungsten. Higher laser powers >200 W resulted in α-W (BCC) in one step without further heat treatment. Different oxygen concentrations from 0.5 ppm to 21 vol% were used in the laser canister to investigate the effect of oxygen concentration on the conversion. It was found that the hard vacuum (>10⁻⁴ torr) or hydrogen is not necessary to obtain α-W (BCC). The solar absorptance varied from 63–97%, depending on the amount of precursor deposited on the substrate and oxygen content in the laser canister. This solution-based laser conversion of tungsten precursor is a scalable method to manufacture tungsten coatings for high-temperature applications.

Keywords: nanostructures; black tungsten; solution-based; solar absorber

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MDPI and ACS Style

Doddapaneni, V.V.K.; Lee, K.; Colbert, T.T.; Mirzababaei, S.; Paul, B.K.; Pasebani, S.; Chang, C.-H. A Scalable Solution Route to Porous Networks of Nanostructured Black Tungsten. Nanomaterials 2021, 11, 2304. https://doi.org/10.3390/nano11092304

AMA Style

Doddapaneni VVK, Lee K, Colbert TT, Mirzababaei S, Paul BK, Pasebani S, Chang C-H. A Scalable Solution Route to Porous Networks of Nanostructured Black Tungsten. Nanomaterials. 2021; 11(9):2304. https://doi.org/10.3390/nano11092304

Chicago/Turabian Style

Doddapaneni, V. Vinay K., Kijoon Lee, Tyler T. Colbert, Saereh Mirzababaei, Brian K. Paul, Somayeh Pasebani, and Chih-Hung Chang. 2021. "A Scalable Solution Route to Porous Networks of Nanostructured Black Tungsten" Nanomaterials 11, no. 9: 2304. https://doi.org/10.3390/nano11092304

APA Style

Doddapaneni, V. V. K., Lee, K., Colbert, T. T., Mirzababaei, S., Paul, B. K., Pasebani, S., & Chang, C.-H. (2021). A Scalable Solution Route to Porous Networks of Nanostructured Black Tungsten. Nanomaterials, 11(9), 2304. https://doi.org/10.3390/nano11092304

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A Scalable Solution Route to Porous Networks of Nanostructured Black Tungsten

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