Citation:
	            
		            Jingran Xiao,  Longlong Fan,  Zhongliang Huang,  Jun Zhong,  Feigang Zhao,  Kaiji Xu,  Shu-Feng Zhou,  Guowu Zhan. Functional principle of the synergistic effect of co-loaded Co-Pi and FeOOH on Fe2O3 photoanodes for photoelectrochemical water oxidation[J]. Chinese Journal of Catalysis,
							;2020, 41(11): 1761-1771.
						
							doi:
								10.1016/S1872-2067(20)63618-X
						
					
				
					
				
	        
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	                	The establishment of multi-component catalytic systems on Fe2O3 photoanodes presents considerable potential for significantly enhancing the performance of photoelectrochemical water splitting systems. In this study, we hydrothermally synthesized a Fe2O3 photoanode. In addition, d-FeOOH synthesized via dip-coating and hydrothermally prepared h-FeOOH were used as cocatalysts and their synergistic combinations with cobalt phosphate (Co-Pi) were investigated. The synergy between h-FeOOH and Co-Pi was remarkable, whereas that between d-FeOOH and Co-Pi was negligible. For example, the onset potentials of the Co-Pi/h-FeOOH and Co-Pi/d-FeOOH dual catalysts, were cathodically shifted by 270 and 170 mV, respectively. Moreover, the photocurrent density of the Co-Pi/h-FeOOH/Fe2O3 anode was significantly higher than that of the Co-Pi/d-FeOOH/Fe2O3 one. The synergistic effect of Co-Pi and h-FeOOH could be attributed to the significantly inhibited recombination of surface charges owing to the formation of a p-n junction between β-FeOOH and Fe2O3 and the large contact area between the granular h-FeOOH and Co-Pi. However, the thin amorphous FeOOH layer of the Co-Pi/d-FeOOH/Fe2O3 anode acted as a hole-transfer medium, and weakly promoted the kinetics of the charge transfer process.
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								Keywords:
								
 - Fe2O3,
 - Synergistic effect,
 - Onset potential,
 - Photoanode,
 - Water splitting
 
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                    [4]
                
			
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                    [5]
                
			
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                    [6]
                
			
 - 
			
                    [7]
                
			
 - 
			
                    [8]
                
			
 - 
			
                    [9]
                
			
 - 
			
                    [10]
                
			
 - 
			
                    [11]
                
			
 - 
			
                    [12]
                
			
 - 
			
                    [13]
                
			
 - 
			
                    [14]
                
			
 - 
			
                    [15]
                
			
 - 
			
                    [16]
                
			
 - 
			
                    [17]
                
			
 - 
			
                    [18]
                
			
 - 
			
                    [19]
                
			
 - 
			
                    [20]
                
			
 - 
			
                    [21]
                
			
 - 
			
                    [22]
                
			
 - 
			
                    [23]
                
			
 - 
			
                    [24]
                
			
 - 
			
                    [25]
                
			
 - 
			
                    [26]
                
			
 - 
			
                    [27]
                
			
 - 
			
                    [28]
                
			
 - 
			
                    [29]
                
			
 - 
			
                    [30]
                
			
 - 
			
                    [31]
                
			
 - 
			
                    [32]
                
			
 - 
			
                    [33]
                
			
 - 
			
                    [34]
                
			
 - 
			
                    [35]
                
			
 - 
			
                    [36]
                
			
 - 
			
                    [37]
                
			
 - 
			
                    [38]
                
			
 - 
			
                    [39]
                
			
 - 
			
                    [40]
                
			
 - 
			
                    [41]
                
			
 - 
			
                    [42]
                
			
 - 
			
                    [43]
                
			
 
 - 
			
                    [1]
                
			
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