Support for catalyst supporting, carrier with supported catalyst, electrode, and battery
A support for carrying a catalyst is obtained by carbonizing raw materials containing a nitrogen-containing organic substance and a metal. The support for carrying a catalyst may have a peak at a diffraction angle of around 26° in an X-ray diffraction pattern, the peak including 20 to 45% of a graphite-like structure component and 55 to 80% of an amorphous component. In addition, the support for carrying a catalyst may have an intensity ratio of a band at 1,360 cm −1 to a band at 1,580 cm −1 (I 1,360 /I 1,580 ) in a Raman spectrum of 0.3 or more and 1.0 or less. In addition, the support for carrying a catalyst may be obtained by carbonizing the raw materials to obtain a carbonized material, subjecting the carbonized material to a metal removal treatment, and subjecting the resultant to a heat treatment.
1. A support for carrying a catalyst, comprising a carbonized material containing nitrogen atoms and a metal,
wherein the support has a catalyst-supporting performance such that when the support is loaded with 10 wt % of a platinum catalyst with respect to the support, the platinum catalyst is retained on the support in a proportion of at least 6.7 wt % and not more than 10 wt % with respect to the support after subjecting the support to the refluxing, washing, filtering, drying and then reducing steps.
2. The support for carrying a catalyst according to claim 1 , wherein the support has a peak at a diffraction angle of around 26° in an X-ray diffraction pattern, the peak comprising 20 to 45% of a graphite-like structure component and 55 to 80% of an amorphous component.
3. The support for carrying a catalyst according to claim 1 , wherein the support has an intensity ratio of a band at 1,360 cm −1 to a band at 1,580 cm −1 (I 1,360 /I 1,580 ) in a Raman spectrum of 0.3 or more and 0.8 or less.
4. The support for carrying a catalyst according to claim 1 , wherein the carbonized material is obtained by carbonizing raw materials containing a nitrogen-containing organic substance and a metal to obtain a carbonized material, subjecting the carbonized material to a metal removal treatment, and then subjecting the resultant carbonized material to a heat treatment at a temperature of 300° C. or more.
5. The support for carrying a catalyst according to claim 1 , wherein the metal is a transition metal.
6. A carrier with supported catalyst, comprising:
a support of carbonized material containing nitrogen atoms and a metal; and
a noble metal catalyst that is carried by the support,
wherein the carrier with supported catalyst has a ratio of a current value upon application of 1.5 V in a 50th cycle to a current value upon application of 1.5 V in a fifth cycle of 95% or more in a case of performing a cycle of sweeping a potential in a range of 0 to 1.6 V continuously 50 times in cyclic voltammetry.
7. An electrode, comprising the carrier with supported catalyst according to claim 6 .
8. A fuel cell comprising the electrode according to claim 7 .
9. The carrier with supported catalyst according to claim 6 , wherein the support has a peak at a diffraction angle of around 26° in an X-ray diffraction pattern, the peak comprising 30 to 40% of a graphite-like structure component and 60 to 70% of an amorphous component.
10. The carrier with supported catalyst according to claim 6 , wherein the support has an intensity ratio of a band at 1,360 μm −1 to a band at 1,580 cm −1 (I 1,360 /I 1,580 ) in a Raman spectrum of 0.3 or more and 1.0 or less.
11. The carrier with supported catalyst according to claim 6 , wherein the carbonized material of the support is obtained by carbonizing raw materials containing a nitrogen-containing organic substance and a metal to obtain a carbonized material, subjecting the carbonized material to a metal removal treatment, and then subjecting the resultant carbonized material to a heat treatment at a temperature of 300° C. or more.
12. The support for carrying a catalyst according to claim 6 , wherein the metal is a transition metal.
13. A carried with supported catalyst, comprising:
a support for carrying a catalyst which is obtained by carbonizing raw materials containing a nitrogen-containing organic substance and a metal; and
a noble metal catalyst, which is carried by the support for carrying catalyst;
wherein the support has a catalyst-supporting performance such that when the support is loaded with 10 wt % of a platinum catalyst with respect to the support, the platinum catalyst is retained on the support in a proportion of at least 6.7 wt % and not more than 10 wt % with respect to the support after subjecting the support to fluxing, washing, filtering, drying, and then reducing steps.
14. The support for carrying a catalyst according to claim 1 , wherein the support for carrying a catalyst has a peak at a diffraction angle of around 26° in an X-ray diffraction pattern, the peak comprising 30 to 40% of a graphite-like structure component and 60 to 70% of an amorphous component.
15. The support for carrying a catalyst according to claim 1 , wherein the support for carrying a catalyst has an intensity ratio of a band at 1,360 cm −1 to a band at 1,580 cm −1 (I 1,360 /I 1,580 ) in a Raman spectrum of 0.3 or more and 1.0 or less.
16. The support for carrying a catalyst according to claim 3 , wherein the support has a carbon structure having structural disorder and defects.
17. The carrier with supported catalyst according to claim 10 , wherein the support has a carbon structure having structural disorder and defects.
18. The carrier with supported catalyst according to claim 6 , wherein the support is not carried on an electrode base material.
19. The carrier with supported catalyst according to claim 13 , wherein the support is not carried on an electrode base material.