Aligned Ti3C2TxMXene for 3D Micropatterning via Additive Manufacturing

Sayli Jambhulkar, Siying Liu, Pruthviraj Vala, Weiheng Xu, Dharneedar Ravichandran, Yuxiang Zhu, Kun Bi, Qiong Nian, Xiangfan Chen, Kenan Song

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Selective deposition and preferential alignment of two-dimensional (2D) nanoparticles on complex and flexible three-dimensional (3D) substrates can tune material properties and enrich structural versatility for broad applications in wearable health monitoring, soft robotics, and human-machine interfaces. However, achieving precise and scalable control of the morphology of layer-structured nanomaterials is challenging, especially constructing hierarchical architectures consistent from nanoscale alignment to microscale patterning to complex macroscale landscapes. This work demonstrated a scalable and straightforward hybrid 3D printing method for orientational alignment and positional patterning of 2D MXene nanoparticles. This process involved (i) surface topology design via microcontinuous liquid interface production (μCLIP) and (ii) directed assembly of MXene flakes via capillarity-driven direct ink writing (DIW). With well-managed surface patterning geometry and printing ink quality control, the surface microchannels constrained MXene suspensions and leveraged microforces to facilitate preferential alignment of MXene sheets via layer-by-layer additive depositions. The printed devices displayed multifunctional properties, i.e., anisotropic conductivity and piezoresistive sensing with a wide sensing range, high sensitivity, fast response time, and mechanical durability. Our fabrication technique shows enormous potential for rapid, digital, scalable, and low-cost manufacturing of hierarchical structures, especially for micropatterning and aligning 2D nanoparticles not easily accessible through conventional processing methods.

Original languageEnglish (US)
Pages (from-to)12057-12068
Number of pages12
JournalACS nano
Volume15
Issue number7
DOIs
StatePublished - Jul 27 2021

Keywords

  • 2D nanoparticles
  • 3D printing
  • alignment
  • layer-by-layer assembly
  • patterning

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Fingerprint

Dive into the research topics of 'Aligned Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>MXene for 3D Micropatterning via Additive Manufacturing'. Together they form a unique fingerprint.

Cite this