Table 2.

Chemical composition of the materials obtained by elemental analysis.

Sample	Elemental Analysis [wt%]
	C	N	O	H	S	Metal*	Metal removed*
PNiD800	79.51	4.45	4.58	0.45	0.00	11.60	3.21
PNiD900	88.82	2.57	3.27	0.24	0.00	5.28	11.04
PNiH900	85.55	3.57	4.02	0.33	0.00	6.48	11.39
PFeD800	85.52	2.37	5.07	0.32	0.00	8.30	5.66
PFeD900	94.59	0.83	2.67	0.11	0.00	2.66	11.77
PFeH900	89.17	1.80	4.39	0.31	0.03	4.00	15.95

^*Calculated by difference.