High performance sorption and desorption behaviours at high working temperatures of ammonia gas in a cobalt-substituted Prussian blue analogue

Yong Jiang; Akira Takahashi; Tohru Kawamoto; Miyuki Asai; Nan Zhang; Zhongfang Lei; Zhenya Zhang; Keisuke Kojima; Kenta Imoto; Kosuke Nakagawa; Shin-ichi Ohkoshi; Tohru Nakamura

doi:10.1039/C8CC06457A

High performance sorption and desorption behaviours at high working temperatures of ammonia gas in a cobalt-substituted Prussian blue analogue†

Yong Jiang,^ab Akira Takahashi,

^b Tohru Kawamoto,

^b Miyuki Asai,^bc Nan Zhang,^ab Zhongfang Lei,

^a Zhenya Zhang,

^a Keisuke Kojima,

^d Kenta Imoto,^e Kosuke Nakagawa,^e Shin-ichi Ohkoshi^e and Tohru Nakamura

*^b

Author affiliations

* Corresponding authors

^a Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki, Japan

^b Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Japan
E-mail: tohru.nakamura@aist.go.jp

^c Department of Material and Biological Chemistry, Faculty of Science, Yamagata University, 1-4-12, Kojirakawa-Machi, Yamagata, Japan

^d Institute of Technology, Shimizu Corporation, 3-4-17, Etchujima, Tokyo, Japan

^e Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan

Abstract

As an adsorbent of gaseous ammonia, cobalt hexacyanocobaltate (Co^II₃[Co^III(CN)₆]₂) was proved to have good sorption even at high temperatures, with thermal recyclability in sorption–desorption cycles. The maximum sorption capacities evaluated with a dual-site Langmuir model are 25.2, 18.6, 8.6, and 2.1 mmol g⁻¹ at 20, 100, 150, and 250 °C, respectively.

Chemical Communications

High performance sorption and desorption behaviours at high working temperatures of ammonia gas in a cobalt-substituted Prussian blue analogue†

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High performance sorption and desorption behaviours at high working temperatures of ammonia gas in a cobalt-substituted Prussian blue analogue

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