A general fruit acid chelation route for eco-friendly and ambient 3D printing of metals

Soo Young Cho; Dong Hae Ho; Yoon Young Choi; Soomook Lim; Sungjoo Lee; Ji Won Suk; Sae Byeok Jo; Jeong Ho Cho

doi:10.1038/s41467-021-27730-6

A general fruit acid chelation route for eco-friendly and ambient 3D printing of metals

Soo Young Cho, Dong Hae Ho, Yoon Young Choi, Soomook Lim, Sungjoo Lee, Ji Won Suk, Sae Byeok Jo, Jeong Ho Cho

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Recent advances in metal additive manufacturing (AM) have provided new opportunities for prompt designs of prototypes and facile personalization of products befitting the fourth industrial revolution. In this regard, its feasibility of becoming a green technology, which is not an inherent aspect of AM, is gaining more interests. A particular interest in adapting and understanding of eco-friendly ingredients can set its important groundworks. Here, we demonstrate a water-based solid-phase binding agent suitable for binder jetting 3D printing of metals. Sodium salts of common fruit acid chelators form stable metal-chelate bridges between metal particles, enabling elaborate 3D printing of metals with improved strengths. Even further reductions in the porosity between the metal particles are possible through post-treatments. A compatibility of this chelation chemistry with variety of metals is also demonstrated. The proposed mechanism for metal 3D printing can open up new avenues for consumer-level personalized 3D printing of metals.

Original language	English
Article number	104
Journal	Nature communications
Volume	13
Issue number	1
DOIs	https://doi.org/10.1038/s41467-021-27730-6
Publication status	Published - 2022 Dec

Bibliographical note

Funding Information:
J.H.C. was supported by the Creative Materials Discovery Program (2019M3D1A1078299) through the National Research Foundation (NRF) of Korea funded by the Ministry of Science and ICT, Korea, the Basic Science Program through the NRF of Korea funded by the Ministry of Science and ICT, Korea (2020R1A4A2002806), and the Korea Medical Device Development Fund grant funded by the Korea government (the Ministry of Science and ICT, the Ministry of Trade, Industry and Energy, the Ministry of Health & Welfare, the Ministry of Food and Drug Safety) (Project Number: KMDF_PR_20200901_0093, 9991006766). J.H.C. was partially supported by the Yonsei Signature Research Cluster Program of 2021 (2021-22-0004).

Publisher Copyright:
© 2022, The Author(s).

All Science Journal Classification (ASJC) codes

Chemistry(all)
Biochemistry, Genetics and Molecular Biology(all)
General
Physics and Astronomy(all)

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10.1038/s41467-021-27730-6

Cite this

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abstract = "Recent advances in metal additive manufacturing (AM) have provided new opportunities for prompt designs of prototypes and facile personalization of products befitting the fourth industrial revolution. In this regard, its feasibility of becoming a green technology, which is not an inherent aspect of AM, is gaining more interests. A particular interest in adapting and understanding of eco-friendly ingredients can set its important groundworks. Here, we demonstrate a water-based solid-phase binding agent suitable for binder jetting 3D printing of metals. Sodium salts of common fruit acid chelators form stable metal-chelate bridges between metal particles, enabling elaborate 3D printing of metals with improved strengths. Even further reductions in the porosity between the metal particles are possible through post-treatments. A compatibility of this chelation chemistry with variety of metals is also demonstrated. The proposed mechanism for metal 3D printing can open up new avenues for consumer-level personalized 3D printing of metals.",

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A general fruit acid chelation route for eco-friendly and ambient 3D printing of metals

Abstract

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