Phthalocyanine Precursors To Construct Atomically Dispersed Iron Electrocatalysts

Wang, Yang1,2; Wang, Maoyu3; Zhang, Zisheng1; Wang, Qi1; Jiang, Zhan1,2; Lucero, Marcos3; Zhang, Xing1; Li, Xiaoxiao1; Gu, Meng1; Feng, Zhenxing3; Liang, Yongye1

2019-07

10.1021/acscatal.9b01617

ACS Catalysis   影响因子和分区

2155-5435

Carbon materials embedded with atomically dispersed metal sites have recently demonstrated intriguing performance as electrocatalysts. However, it remains challenging to construct abundant single metal atoms due to easy aggregation of metal species during the high-temperature synthesis. Herein, a facile method is devloped to construct single iron atom electrocatalysts with high iron content by employing iron phthalocyanine (FePc) derivatives as metal precursors. FePc molecules are encapsulated into the zeolitic imidazolate frameworks (ZIFs), and the subsequent pyrolysis yields the catalysts. Cyano substitution on FePc (FePc(CN)(8)) can facilitate introduction of phthalocyanine molecules and formation of active sites, thus affording higher activity for the oxygen reduction reaction than the FePc counterpart. It is also found that adding iron salt with FePc(CN)(8) catalyst with enhanced surface Fe-N-x content, which exhibits high activities with a half-wave potential of 0.910 and 0.811 versus reversible hydrogen electrode in alkaline and acidic conditions, respectively. Moreover, FePc(CN)(8)/ZIF-derived catalyst exhibits high selectivities and good activities for carbon monoxide production in the carbon dioxide reduction reaction (CO2RR). The bulk Fe-N-x sites are found to be more stable than the surface Fe-N-x sites possibly due to the improved desorption of carbon monoxide.

oxygen reduction reaction carbon dioxide reduction reaction iron phthalocyanine single-atom electrocatalysts zeolitic imidazolate frameworks

SCI ; EI

英语

第一 ; 通讯

National Science Foundation[ECC-1542101]

Chemistry

Chemistry, Physical

WOS:000474812400046

AMER CHEMICAL SOC

20193307308310

Atoms ; Carbon dioxide ; Carbon monoxide ; Catalyst selectivity ; Electrocatalysts ; Electrolysis ; Electrolytic reduction ; Metals ; Molecules ; Pollution control

Ore Treatment:533.1 ; Electrochemistry:801.4.1 ; Chemical Agents and Basic Industrial Chemicals:803 ; Inorganic Compounds:804.2 ; Atomic and Molecular Physics:931.3

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Heilongjiang, Peoples R China
3.Oregon State Univ, Sch Chem Biol & Environm Engn, Corvallis, OR 97331 USA

Wang, Yang,Wang, Maoyu,Zhang, Zisheng,et al. Phthalocyanine Precursors To Construct Atomically Dispersed Iron Electrocatalysts[J]. ACS Catalysis,2019,9(7):6252-6261.

Wang, Yang.,Wang, Maoyu.,Zhang, Zisheng.,Wang, Qi.,Jiang, Zhan.,...&Liang, Yongye.(2019).Phthalocyanine Precursors To Construct Atomically Dispersed Iron Electrocatalysts.ACS Catalysis,9(7),6252-6261.

Wang, Yang,et al."Phthalocyanine Precursors To Construct Atomically Dispersed Iron Electrocatalysts".ACS Catalysis 9.7(2019):6252-6261.