TY - JOUR
T1 - Diesel fuel particulate emission control using low-cost catalytic materials
AU - Khobragade, Rohini
AU - Saravanan, Govindachetty
AU - Einaga, Hisahiro
AU - Nagashima, Hideo
AU - Shukla, Pravesh
AU - Gupta, Tarun
AU - Kumar Agarwal, Avinash
AU - Labhasetwar, Nitin
N1 - Funding Information:
This work was carried out under the SERB-DST sponsored project (EMR/2016/006586). Rohini Khobragade acknowledges CSIR-UGC for fellowship and AcSIR. The author thank Takeshi Tanaka for transmission electron microscopy images of the catalysts. Characterizations studies have been carried out under CSIR-NEERI and KYUSHU University research collaboration. The authors also acknowledge Director CSIR-NEERI, Nagpur for providing research facilities. KRC No.: CSIR-NEERI/KRC/2018/APRIL/ERMD/1.
Funding Information:
This work was carried out under the SERB-DST sponsored project (EMR/2016/006586). Rohini Khobragade acknowledges CSIR-UGC for fellowship and AcSIR. The author thank Takeshi Tanaka for transmission electron microscopy images of the catalysts. Characterizations studies have been carried out under CSIR-NEERI and KYUSHU University research collaboration. The authors also acknowledge Director CSIR-NEERI, Nagpur for providing research facilities. KRC No.: CSIR-NEERI/KRC/2018/APRIL/ERMD/1.
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/10/15
Y1 - 2021/10/15
N2 - Diesel fuel and engine is still projected as a relatively efficient and cleaner in terms of GHG emissions per unit energy generation provided PM emissions are controlled. The catalyst based after-exhaust treatment technologies are very efficient but expensive. Diesel PM oxidation catalysts with matching performance at a lower cost compared to the commercial precious metal catalysts are therefore much required as alternative, due to the vulnerabilities associated with the precious metals in terms of their limited reserves and limited geographical mineral distribution. Low-cost non-precious metal based manganese (Mn)-substituted strontium ferrite (SrFe0.9Mn0.1O3-δ) (SFM) catalysts have been systematically explored, which exhibit improved diesel particulate matter (DPM) catalytic oxidation performance. The available oxygen content in SFM is significantly higher compared to that of pure perovskite phase of strontium ferrite (SrFeO3-δ) (SFO) due to the Mn-substitution. The onset temperature (To) and maximum conversion temperature (Tm) of SFM for PM oxidation was observed at 270 and 380 °C, respectively, which is significantly lower than that of SFO (To = 295 °C; Tm = 440 °C). SFM showed multi-cycle, stable diesel PM oxidation performance compared to that of SFO and manganese oxide dispersed SFO. The durability of SFO is improved substantially upon substitution of Mn in its lattice and this catalyst possess potential for practical applications of diesel PM emission reduction.
AB - Diesel fuel and engine is still projected as a relatively efficient and cleaner in terms of GHG emissions per unit energy generation provided PM emissions are controlled. The catalyst based after-exhaust treatment technologies are very efficient but expensive. Diesel PM oxidation catalysts with matching performance at a lower cost compared to the commercial precious metal catalysts are therefore much required as alternative, due to the vulnerabilities associated with the precious metals in terms of their limited reserves and limited geographical mineral distribution. Low-cost non-precious metal based manganese (Mn)-substituted strontium ferrite (SrFe0.9Mn0.1O3-δ) (SFM) catalysts have been systematically explored, which exhibit improved diesel particulate matter (DPM) catalytic oxidation performance. The available oxygen content in SFM is significantly higher compared to that of pure perovskite phase of strontium ferrite (SrFeO3-δ) (SFO) due to the Mn-substitution. The onset temperature (To) and maximum conversion temperature (Tm) of SFM for PM oxidation was observed at 270 and 380 °C, respectively, which is significantly lower than that of SFO (To = 295 °C; Tm = 440 °C). SFM showed multi-cycle, stable diesel PM oxidation performance compared to that of SFO and manganese oxide dispersed SFO. The durability of SFO is improved substantially upon substitution of Mn in its lattice and this catalyst possess potential for practical applications of diesel PM emission reduction.
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U2 - 10.1016/j.fuel.2021.121157
DO - 10.1016/j.fuel.2021.121157
M3 - Article
AN - SCOPUS:85111073460
SN - 0016-2361
VL - 302
JO - Fuel
JF - Fuel
M1 - 121157
ER -