Abstract
Mesoporous carbon nitrides (MCN) with C3N4 stoichiometry could find applications in fields ranging from catalysis, sensing, and adsorption–separation to biotechnology. The extension of the synthesis of MCN with different nitrogen contents and chemical structures promises access to a wider range of applications. Herein we prepare mesoporous C3N5 with a combined triazole and triazine framework via a simple self-assembly of 5-amino-1H-tetrazole (5-ATTZ). We are able to hybridize these nanostructures with graphene by using graphene–mesoporous-silica hybrids as a template to tune the electronic properties. DFT calculations and spectroscopic analyses clearly demonstrate that the C3N5 consists of 1 triazole and 2 triazine moieties. The triazole-based mesoporous C3N5 and its graphene hybrids are found to be highly active for oxygen reduction reaction (ORR) with a higher diffusion-limiting current density and a decreased overpotential than those of bulk g-C3N4.
| Original language | English |
|---|---|
| Pages (from-to) | 17135-17140 |
| Number of pages | 6 |
| Journal | Angewandte Chemie - International Edition |
| Volume | 57 |
| Issue number | 52 |
| DOIs | |
| Publication status | Published - 2018 Dec 21 |
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All Science Journal Classification (ASJC) codes
- Catalysis
- Chemistry(all)
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Ordered Mesoporous C3N5 with a Combined Triazole and Triazine Framework and Its Graphene Hybrids for the Oxygen Reduction Reaction (ORR). / Kim, In Young; Kim, Sungho; Jin, Xiaoyan; Premkumar, Selvarajan; Chandra, Goutam; Lee, Nam Suk; Mane, Gurudas P.; Hwang, Seong Ju; Umapathy, Siva; Vinu, Ajayan.
In: Angewandte Chemie - International Edition, Vol. 57, No. 52, 21.12.2018, p. 17135-17140.Research output: Contribution to journal › Article
TY - JOUR
T1 - Ordered Mesoporous C3N5 with a Combined Triazole and Triazine Framework and Its Graphene Hybrids for the Oxygen Reduction Reaction (ORR)
AU - Kim, In Young
AU - Kim, Sungho
AU - Jin, Xiaoyan
AU - Premkumar, Selvarajan
AU - Chandra, Goutam
AU - Lee, Nam Suk
AU - Mane, Gurudas P.
AU - Hwang, Seong Ju
AU - Umapathy, Siva
AU - Vinu, Ajayan
PY - 2018/12/21
Y1 - 2018/12/21
N2 - Mesoporous carbon nitrides (MCN) with C3N4 stoichiometry could find applications in fields ranging from catalysis, sensing, and adsorption–separation to biotechnology. The extension of the synthesis of MCN with different nitrogen contents and chemical structures promises access to a wider range of applications. Herein we prepare mesoporous C3N5 with a combined triazole and triazine framework via a simple self-assembly of 5-amino-1H-tetrazole (5-ATTZ). We are able to hybridize these nanostructures with graphene by using graphene–mesoporous-silica hybrids as a template to tune the electronic properties. DFT calculations and spectroscopic analyses clearly demonstrate that the C3N5 consists of 1 triazole and 2 triazine moieties. The triazole-based mesoporous C3N5 and its graphene hybrids are found to be highly active for oxygen reduction reaction (ORR) with a higher diffusion-limiting current density and a decreased overpotential than those of bulk g-C3N4.
AB - Mesoporous carbon nitrides (MCN) with C3N4 stoichiometry could find applications in fields ranging from catalysis, sensing, and adsorption–separation to biotechnology. The extension of the synthesis of MCN with different nitrogen contents and chemical structures promises access to a wider range of applications. Herein we prepare mesoporous C3N5 with a combined triazole and triazine framework via a simple self-assembly of 5-amino-1H-tetrazole (5-ATTZ). We are able to hybridize these nanostructures with graphene by using graphene–mesoporous-silica hybrids as a template to tune the electronic properties. DFT calculations and spectroscopic analyses clearly demonstrate that the C3N5 consists of 1 triazole and 2 triazine moieties. The triazole-based mesoporous C3N5 and its graphene hybrids are found to be highly active for oxygen reduction reaction (ORR) with a higher diffusion-limiting current density and a decreased overpotential than those of bulk g-C3N4.
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U2 - 10.1002/anie.201811061
DO - 10.1002/anie.201811061
M3 - Article
C2 - 30407712
AN - SCOPUS:85057470806
VL - 57
SP - 17135
EP - 17140
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
SN - 1433-7851
IS - 52
ER -