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 Gaseous nitric acid activated macroscopic graphite felts as hierarchical metal-free catalyst for selective oxidation of H2S
Tác giả hoặc Nhóm tác giả: Zhenxin Xu, Cuong Duong-Viet, Housseinou Ba, Bing Li, Tri Truong-Huu, Lam Nguyen-Dinh, Cuong Pham-Huu
Nơi đăng: Sociedade Portuguesa de Química; Số: ISBN 978-989-8124-22-7;Từ->đến trang: 64;Năm: 2018
Lĩnh vực: Khoa học công nghệ; Loại: Báo cáo; Thể loại: Quốc tế
TÓM TẮT
Nanocarbon-based metal-free catalysts consisted by nitrogen-doped carbon matrix have received an ever increasing scientific and industrial interest in the field of heterogeneous catalysis since the last decade for several potential processes. In this study, we reported on the influence of gaseous HNO3 treatment on the formation of defects decorated with oxygenated functional groups on macroscopic commercial graphite felts (GFs). Such sample will be further used as allcarbon metal-free catalyst in the selective oxidation of H2S into elemental sulfur to prevent the problem of air pollution. It is worthy to note that it is the first time that such results are reported as literature only reports metal-free catalysts based on nanocarbons, whose synthesis requires harsh reaction conditions along with problems linked with waste treatment.
ABSTRACT
Nanocarbon-based metal-free catalysts consisted by nitrogen-doped carbon matrix have received an ever increasing scientific and industrial interest in the field of heterogeneous catalysis since the last decade for several potential processes. In this study, we reported on the influence of gaseous HNO3 treatment on the formation of defects decorated with oxygenated functional groups on macroscopic commercial graphite felts (GFs). Such sample will be further used as allcarbon metal-free catalyst in the selective oxidation of H2S into elemental sulfur to prevent the problem of air pollution. It is worthy to note that it is the first time that such results are reported as literature only reports metal-free catalysts based on nanocarbons, whose synthesis requires harsh reaction conditions along with problems linked with waste treatment.
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